ПЕРЕДАТЧИК ВНУТРЕННЕЙ УСТАНОВКИ ДЛЯ СИСТЕМЫ ОБЕСПЕЧЕНИЯ ИНФОРМАЦИИ О МЕСТОПОЛОЖЕНИИ И СПОСОБ ОБЕСПЕЧЕНИЯ ИНФОРМАЦИИ О МЕСТОПОЛОЖЕНИИ

Изобретение относится к области радиотехники, а именно к определению местоположения, и может быть использовано в глобальной системе определения местоположения. Технический результат заключается в обеспечении информации о местоположении без ухудшения точности даже в местоположении, где невозможно принимать радиоволны от спутника, который излучает сигналы для определения местоположения, и в снижении времени, требуемого для получения информации о местоположении. Для этого передатчик (200-1) внутренней установки приспособлен для обеспечения информации о местоположении путем использования второго сигнала определения местоположения, совместимого с первым сигналом определения местоположения, который является сигналом расширенного спектра от каждого из множества спутников. Передатчик (200-1) внутренней установки содержит память EEPROM (243), которая хранит данные местоположения для идентификации его местоположения установки, FPGA (245), действующую для генерации второго сигнала, включающего в себя ...

СИСТЕМА И СПОСОБ ИНТЕГРАЦИИ БЕСПРОВОДНОЙ КОМПЬЮТЕРНОЙ СЕТИ В ТЕХНОЛОГИЮ ОПРЕДЕЛЕНИЯ МЕСТОПОЛОЖЕНИЯ

Беспроводное устройство связи, известное как мобильная станция (MS), содержит обычную систему беспроводной связи и дополнительно содержит подсистему связи беспроводной компьютерной сети и может также включать в себя возможность позиционирования с помощью глобальной системы позиционирования (GPS). Оператор MS может использовать любую или все эти подсистемы, чтобы определить текущее местоположение MS. MS предоставляются основанные на местоположении услуги на основе текущего местоположения MS, такие как информация о продажах, расписания, цены, карты и т.п. В типичном осуществлении множество точек доступа к компьютерной сети, или радиомаяков, распределены по всей географической области и используются для того, чтобы определять местоположение MS с достаточно высокой степенью точности. На основе текущего местоположения MS радиомаяки могут предоставлять основанные на местоположении услуги. Достигаемым техническим результатом является повышение точности определения местоположения мобильного устройства ...

СПУТНИКОВАЯ РАДИОНАВИГАЦИОННАЯ СИСТЕМА ПОСАДКИ С ИСПОЛЬЗОВАНИЕМ ПСЕВДОСПУТНИКОВ

Изобретение относится к области радиотехники, а именно, к системам посадки летательных аппаратов (ЛА) на основе спутниковых радионавигационных систем ГЛОНАСС, GPS, и может быть использовано для оснащения необорудованных радиомаячными посадочными средствами аэродромов и вертолетных площадок. Технический результат заключается в повышении надежности системы посадки ЛА при использовании стандартного навигационного приемника спутниковых сигналов. Для этого на борту ЛА введены ретранслятор сигналов псевдоспутников, в который входят бортовой приемник сигналов псевдоспутников с обращенной в сторону Земли приемной антенной ретранслятора на входе, понижающие преобразователи частоты, повышающие преобразователи частоты, блоки ограничения мощности, бортовой передатчик преобразованных сигналов псевдоспутников с передающей антенной ретранслятора на выходе и синтезатор частоты, при этом в качестве бортового приемника спутниковых сигналов использован стандартный навигационный приемник спутниковых сигналов ...

СПОСОБЫ И УСТРОЙСТВА ДЛЯ НАВИГАЦИОННОЙ СИСТЕМЫ С ПОНИЖЕННОЙ ВОСПРИИМЧИВОСТЬЮ К НЕПРЕДНАМЕРЕННЫМ И ПРЕДНАМЕРЕННЫМ ПОМЕХАМ

... 1. Навигационная система (200), содержащая ! опорный приемник (210); ! приемник (202) пользователя; ! спутник (206) глобальной системы определения местоположения (GPS), находящийся в пределах общей видимости для указанного опорного приемника (210) и указанного приемника (202) пользователя, при этом указанные опорный приемник (210) и указанный приемник (202) пользователя принимают зондирующий сигнал (208, 209) несущей частоты от указанного спутника (206) GPS; ! первый спутник (222) на низкой околоземной орбите (LEO), находящийся в пределах общей видимости указанного опорного приемника (210) и указанного приемника (202) пользователя, при этом указанный опорный приемник (210) и указанный приемник (202) пользователя выполнены с возможностью вычисления соответственно первого и второго измерений зондирующего сигнала несущей частоты LEO, полученного от указанного первого спутника (222) LEO; ! указанный приемник (202) пользователя выполнен с возможностью приема через спутник (222) LEO указанного ...

СИСТЕМЫ И СПОСОБЫ ДЛЯ ОПРЕДЕЛЕНИЯ МЕСТОПОЛОЖЕНИЯ МОБИЛЬНОГО УСТРОЙСТВА

... 1. Способ, содержащий этапы, на которых: ! - генерируют множество псевдопилотных сигналов, включающих в себя смещения PN-фазы, соответствующие псевдобазовым станциям, причем псевдобазовые станции являются, по меньшей мере, одним из группы, состоящей из: (1) множество нефизических базовых станций и (2) физические базовые станции вне дальности приема повторителя и беспроводного мобильного устройства в окрестности повторителя; ! - комбинируют псевдопилотные сигналы с сигналами связи от физической базовой станции, которая находится в пределах дальности приема повторителя, чтобы формировать композитные сигналы; и ! - передают композитные сигналы для приема беспроводным мобильным устройством. ! 2. Способ по п. 1, дополнительно содержащий этап, на котором регулируют относительную мощность псевдопилотных сигналов относительно сигналов связи, принимаемых от физической базовой станции, чтобы избежать инициирования передачи обслуживания псевдобазовым станциям. ! 3. Способ по п. 1, дополнительно содержащий ...

СПОСОБ И СИСТЕМА ДЛЯ ОПРЕДЕЛЕНИЯ МЕСТОПОЛОЖЕНИЯ СИСПОЛЬЗОВАНИЕМ МНОЖЕСТВА ВЫБРАННЫХ НАЧАЛЬНЫХ ОЦЕНОК МЕСТОПОЛОЖЕНИЯ

... 1. Способ определения местоположения множества модулей, причем каждый модуль соединен средствами связи, по меньшей мере, с некоторыми другими из множества модулей, и, по меньшей мере, некоторые из множества модулей находятся на расстоянии дальности связи с одним или более опорными модулями, местоположения которых, по меньшей мере, либо определено, либо известно, при этом указанный способ содержит измерение расстояния между каждым из модулей и любыми опорными модулями в пределах дальности связи между ними; определение области возможного местоположения для каждого из модулей, включающей в себя множество возможных начальных оценок местоположения; выбор начальной оценки местоположения для каждого из модулей, местоположение которых не известно, из области, соответствующей области возможного местоположения; выполнение оценки местоположения для каждого из модулей, которая минимизирует значение ошибки, на основе разности между измеренными значениями расстояния и расстоянием, вычисленным из значений ...

ПРОЦЕДУРА ПОИСКА СИГНАЛОВ ДЛЯ СИСТЕМЫ ОПРЕДЕЛЕНИЯ МЕСТОПОЛОЖЕНИЯ

... 1. Способ выполнения поиска сигналов, полезных в определении местоположения объекта, заключающийся в том, что выполняют первый поиск сигналов, полезных в определении местоположения объекта, как часть попытки определения местоположения, причем этот первый поиск включает в себя поиск спутников в первом наборе; извлекают одно или более измерений из получаемых результатов поиска; определяют удовлетворяют ли эти измерения одному или более выбранным критериям выхода; отменяют дополнительный поиск в рамках этой попытки определения местоположения, если измерения удовлетворяют одному или более выбранным критериям выхода; и выполняют второй поиск сигналов, полезных в определении местоположения объекта, если измерения не удовлетворяют одному или более выбранным критериям выхода, причем те спутники в первом наборе, которые удовлетворяют некоторому заданному шумовому порогу, формируют второй набор, те спутники в первом наборе, которые удовлетворяют некоторому второму порогу, формируют третий набор, ...

GPS Überlagerungssystem für einen geostationären Satelliten

MAGNETKOPF MIT KAPILLARER ANZIEHUNG UND HERSTELLUNGSVERFAHREN

SCHALTUNGSANORDNUNG ZUR IDENTIFIZIERUNG EINES BODENFUNKFEUERS AN BORD

LOKALISIERUNGSSYSTEM UND VERFAHREN ZUR ERZIELUNG EINER ZEITSYNCHRONISIERTEN NETZWERK-LEISTUNGSFÄHIGKEIT MIT IN GETRENNTEN NETZWERKEN UNTERTEILTEN KNOTEN

Verfahren und System zur Bestimmung der Position eines Flugobjekts, insbesondere eines bemannten Luftfahrzeugs

Verfahren zur Bestimmung der Position eines Flugobjekts (1), bei dem:- mehrere Stationen (201, 202, 203, 301, 302), welche eine oder mehrere Bodenstationen (201, 202, 203) auf der Erdoberfläche und eine oder mehrere Plattformen (301, 302) in der Stratosphäre (SP) umfassen, erste und zweite Signale (SI1, SI2) aussenden, die von dem Flugobjekt (1) empfangen werden, wobei die ersten Signale (SI1) von der oder den Bodenstationen (201, 202, 203) stammen und die zweiten Signale (SI2) von der oder den Plattformen (301, 302) stammen;- eine Verarbeitungseinrichtung im Flugobjekt (1) aus den empfangenen ersten und zweiten Signalen (SI1, SI2) die Position des Flugobjekts (1) ermittelt.

VERFAHREN UND GERÄT ZUR ERDUMFASSENDEN POSITIONSBESTIMMUNG MITTELS GPS/TRÄGHEITSNAVIGATION MIT VERARBEITUNG VON INTEGRITÄTSVERLUST

Telecommunications network

A network management system 1, for example for use in a telecommunications network 7, comprises a performance measurement tool 3 for carrying out a plurality of performance measurements 5 relating to physical or logical components of the network 7. A performance management controller 9 comprises a control unit 19, a list of performance measurement groups 13, a list of logical/physical components 15 and a list of predefined time schedules 17. Upon receiving information 11 indicating that a performance measurement threshold has been crossed, the control unit 19 determines whether the group of performance measurements associated with that threshold is active, and if not, automatically activates 21 the appropriate performance measurement group. In this way, the system is able to adaptively change the performance measurements in response to actual performance measurements, thereby ensuring that the most appropriate measurements are carried out. The automatic deactivation 23 of performance measurements ...

METHOD AND APPARATUS FOR PREDICTING THE POSITION OF A SATELLITE IN A SATELLITE BASED NAVIGATION SYSTEM

Improvements in or relating to satellite navigation

MOVEMENT PURSUIT SYSTEM AND PROCEDURE

POSITION ESTIMATION IN WIRELESS TELECOMMUNICATIONS NETS

OBJECT LOCALIZATION SYSTEM AND - PROCEDURES WITH SEVERAL DISSOLUTIONS

DETERMINATION OF A PROGNOSTICATED ACHIEVEMENT OF A NAVIGATION SYSTEM

HIGH FREQUENCY MOVEMENT PURSUIT SYSTEM AND - PROCEDURES

PROCEDURE AND DEVICE FOR THE PROCESSING OF SATELLITE SIGNALS WITHOUT TIME OF DAY INFORMATION

SUPPRESSION A SPS SIGNAL RECEIVED FROM MULTI-WAY EFFECTS FOR

CALIBRATION FOR A WIRELESS POSITIONSSYSTEM

PROCEDURE AND EQUIPMENT FOR THE DETERMINATION OF THE ALGEBRAIC SOLUTION OF THE EQUATIONS OF A TERRESTRIAL GPS HYBRID OF POSITIONING SYSTEM

CALIBRATION FOR A WIRELESS POSITIONSSYSTEM

PROCEDURE FOR THE ENTERPRISE OF A SATELLITE NAVIGATION RECEIVER

PROCEDURE AND SYSTEM FOR DATA LINK FRONT END FILTERS FOR SPORADIC ACTUALIZATIONS

PROCEDURE FOR SENDING SATELLITE DATAS

POSITIONING ON SATELLITE BASIS

AVAILABILITY OF CARRIER PHASE MEASUREMENTS ON REQUEST FOR POSITIONING ON SATELLITE BASIS

SYSTEM AND PROCEDURE FOR PURSUING THE POSITION SEVERAL MOBILERFUNKSENDER/EMPFAEGEREINHEITEN

GPS RECEIVER AND PROCEDURE FOR THE PROCESSING OF GPS SIGNALS

EXACT GPS ANFLUGUND LANDING SYSTEM FOR AIRPLANES

TRANSMITTER LOCALIZATION SYSTEM

A method for creating a network positioning system (NPS)

System and method for integration of wireless computer network in position determining technology

A method for using signal frequency change to differentially resolve long baseline interferometer measurements

Determining a geolocation solution of an emitter on earth based on weighted least-squares estimation

Carrier-based differential-position determination using multi-frequency pseudolites

Apparatus and method for CDMA Time Pseudolite for repeater identification

Animal management system including radio animal tag and additional transceiver(s)

An animal management system includes a beacon (110), a radio animal tag (120) configured to monitor the proximity of the animal tag to the beacon, and a reader (130) configured to read information from the animal tag.

A method & device for precision time-lock

Anchor for safety device

Low cost dtoa location processing system based on multiple readers-to-single processor architecture

Differential time of flight measurement system

A system and method for performing object association using a location tracking system

TIME AND FREQUENCY SYNCHRONISATION OF EQUIPMENT AT DIFFERENT LOCATIONS.

Continuous data optimization in positioning system

C:\RPonbrDCC\MAGU690928-l.DOC.IM6OI I In a location-based services system, a method of utilizing WiFi-enabled devices to monitor WiFi access points in a target area to indicate whether a WiFi access point has moved 5 relative to its previously recorded location, the method comprising the acts of: a) a WiFi-enabled device communicating with WiFi access points within range of the WiFi-enabled device so that observed WiFi access points identify themselves; b) accessing a reference database to obtain information specifying a recorded location for each observed WiFi access point in the target area; 10 c) using the recorded location information for each of the observed WiFi access points in conjunction with predefined rules to infer whether an observed WiFi access point has moved relative to its recorded location; d) informing the reference database of the identity of any observed WiFi access point that is inferred to have moved.

Apparatus and method for receiving position and control signals by a mobile machine

INTEGRATED VEHICLE POSITIONING AND NAVIGATION SYSTEM, APPARATUS AND METHOD

APPARATUS AND METHOD OF POSITION DETERMINATION OF A FIRST MOBILE DEVICE USING INFORMATION FROM A SECOND MOBILE DEVICE

A hybrid position determination system is disclosed. A mobile device may determine a number of pseudo ranges based on a first position determination system, such as a Global Positioning System. In instances where the position of the mobile device is underdetermined because of an insufficient number of satellite pseudo ranges, the mobile device receives shard position information from other devices. The other devices include a second mobile device. The first mobile device may determine its position based on an underdetermined number of satellite pseudo ranges by determining pseudo ranges to other mobile devices. In other embodiments, the number of satellite pseudo ranges may be insufficient to generate an absolute position determination of a single mobile device. In this underdetermined condition, mobile devices may determine a common location of the group or may determine a relative positioning of members of the group.

METHOD FOR BACK-UP DUAL-FREQUENCY NAVIGATION DURING BRIEF PERIODS WHEN MEASUREMENT DATA IS UNAVAILABLE ON ONE OF TWO FREQUENCIES

The present invention includes a method for performing backup dual-frequency navigation during a brief period when one of two frequencies relied upon by dual-frequency navigation is unavailable. The method includes synthesizing the code and carrier-phase measurements on the unavailable frequency using the carrier-phase measurements on the retained frequency and a model of ionospheric refraction effects, which is updated when measurements on both frequencies are available.

REAL-WORLD PERSPECTIVE DISPLAY FOR USE WITH AN INDEPENDENT AIRCRAFT LANDING MONITOR SYSTEM

AIRCRAFT GUIDANCE SYSTEM USEFUL WITH MICROWAVE FREQUENCIES

AUTOMATIC PAST ERROR CORRECTIONS FOR LOCATION AND INVENTORY TRACKING

A system is provided for tracking and maintaining an inventory of location of containers that are stored on cargo ships or in a container yard. The system includes one or more sensors, such as GPS and INS sensors for obtaining real-time position information, as well as a processor configured to automatically provide post processing to recover lost data and to correct erroneous data, such as when real-time position signals are blocked or distorted, the post processing performed by estimating trajectories and correcting the location errors. Post-processed positioning techniques are continuously applied to the stored position data to iteratively determine calibrated position locations to provide calibrated second trajectory segments in a real- time fashion. The calibrated second trajectories are then used to identify the errors in the past real-time position data as soon as a segment of the second calibrated trajectory becomes statistically trustworthy. Corrections can be automatically made ...

POSITION SURVEILLANCE USING ONE ACTIVE RANGING SATELLITE AND TIME OF ARRIVAL OF A SIGNAL FROM AN INDEPENDENT SATELLITE

RADIO DETERMINATION USING SATELLITES TRANSMITTING TIMING SIGNALS WITH CORRECTION BY ACTIVE RANGE MEASUREMENT

METHOD AND APPARATUS FOR DETERMINING AN ALGEBRAIC SOLUTION TO GPS TERRESTRIAL HYBRID LOCATION SYSTEM EQUATIONS

A method and apparatus for use in a hybrid position location system. The method and apparatus combines measurements from Global Positioning System (GPS) and terrestrial transceiver stations to compute the location of a device. An algebraic solution to hybrid position location system equations is output from the method and apparatus. The method and apparatus determines the position of a device using a non-iterative method, as against the use of a conventional iterative least mean square method. The method of the present invention can be used to solve the location system equations in scenarios where a non-iterative solution is desirable. In certain scenarios, the location system equations may have two possible solutions. An iterative method would converge on one of the solutions, without any indication of the existence of the other ambiguous solution. Moreover, the iterative method may converge on the incorrect of the two ambiguous solutions. Use of the presently disclosed method and apparatus ...

LOCALIZATION AND TRACKING USING LOCATION, SIGNAL STRENGTH, AND PSEUDORANGE DATA

A localization server improves position estimates of global navigation satellite systems (GNSS) using probabilistic shadow matching and pseudorange matching is disclosed herein. The localization server may utilize one or more of the following information: the locations of the satellites, the GNSS receiver's location estimate and associated estimated uncertainty, the reported pseudoranges of the satellites, the GNSS estimated clock bias, the SNRs of the satellites, and 3D environment information regarding the location of the receiver. The localization server utilizes a Bayesian framework to calculate an improved location estimate using the GNSS location fixes, pseudorange information, and satellite SNRs thereby improving localization and tracking for a user device.

METHOD FOR TRANSMITTING SATELLITE DATA

In a method for transmitting satellite data of a global navigation satellite system (1) each satellite (2) transmit position data of neighboring satellites (2) to a navigation device on the earth (6). The subset of neighboring satellites with respect to a specific satellite is determined by averaging over a period of the inter-satellite distance. The subsets are further restricted to the condition that all visible satellites are referenced by the position data of at least one other satellite. This requirement can be met by choosing appropriate permutations among the satellites with shortest distance.

GPS RECEIVER AND METHOD FOR PRODUCING GPS SIGNALS

A GPS mobile unit having a reduced power state includes: a receiver for receiving GPS signals from in view satellites; a memory to store a digital representation of said GPS signals; a processor for processing the digital representation of the GPS signals to provide at least one pseudorange information from the digital representation; and a power management circuit. The power management circuit reduces power consumed by the GPS receiving section of the receiver of said GPS mobile unit from a first rate consumed while receiving the GPS signals to a second rate after storing the digital representation. The GPS receiving section downconverts GPS radiofrequency signals to an intermediate frequency. Furthermore, the power management circuit increases power consumed by the processor from a third rate consumed while receiving the GPS signals to a fourth rate after said digital representation is stored in said memory in order to process the GPS signals.

COOPERATIVE LOCALIZATION FOR WIRELESS NETWORKS

A system and corresponding method using a cooperative localization techni que for self identifying a location of a wireless device in a wireless netwo rk is presented. The system may estimate an arbitrary signal metric as a fun ction of a signal received by the wireless device from the at least one othe r wireless device in the wireless network. The system may also convert at le ast one belief representing a distribution of at least one possible location of the at least one other wireless device to generate at least one converte d belief. The system may further determine a self-belief as a function of th e at least one converted belief and identify a self location, as a function of the self-belief, within the wireless network.

PORTABLE, ITERATIVE GEOLOCATION OF RF EMITTERS

Iterative geolocation of a stationary RF emitter through the use of TDOA may include the use of a single portable geolocation (e.g., TDOA) sensor, a pair of portable geolocation sensors and three of more portable geolocation sensors. Adding portable geolocation sensors to the iterative process reduce s the constraints on the signals to be located as well as providing a reduct ion in the number of iterations required to obtain improved location accurac y.

POSITION MONITORING SYSTEM

Apparatus and system may operate to provide a locating system to obtain location data using GPS for a device, in order to determine whether that device is within a defined perimeter.

METHODS AND SYSTEMS FOR PROXIMITY-BASED MONITORING OF WIRELESS DEVICES

Method and apparatus are disclosed for monitoring the geographic location or velocity of a first wireless device relative to at least one other wireless device and noting an exception if the first wireless device moves beyond a predetermined threshold of separation from the second wireless device, or if the velocity of the first wireless device is outside a predetermined threshold. In response to an exception, supervisory action is taken which may include contacting the wireless device or contacting another person.

DETERMINING A GEOLOCATION SOLUTION OF AN EMITTER ON EARTH BASED ON WEIGHTED LEAST-SQUARES ESTIMATION

Embodiments provide systems and methods for determining the geolocation o f an emitter on earth based on weighted least-squares estimation based on tw o TDOA and two FDOA measurements, none of which need to be acquired at the s ame time. The four TDOA and FDOA measurements and the errors in each of the measurements are determined. Weights for the errors in the TDOA and FDOA mea surements are determined, and the weights are applied in a weighted errors f unction. The weights account for the errors in the measurements and the erro rs in the satellite positions and velocities, and are dependent on the local ization geometry. The weighted errors function is minimized to determine the location estimate of the unknown emitter.

AUTONOMOUS SYSTEM FOR POSITIONING BY PSEUDOLITES IN A CONSTRAINED ZONE AND METHOD OF IMPLEMENTATION

La présente invention a pour objet un système de positionnement d'un objet dans une zone contrainte, comprenant : - un ensemble de pseudolites répartis dans ladite zone contrainte et présentant chacun un code d'étalement correspondant au code d'étalement d'un satellite appartenant à une constellation de satellites d'un système de navigation par satellites, ladite constellation de satellites comprenant au moins un premier ensemble de satellites (S1 ) et un deuxième ensemble de satellites (S2) de visibilité disjointe, - et un récepteur situé sur l'objet à localiser, les pseudolites étant répartis dans la zone contrainte de telle sorte qu'en tout point de la zone contrainte, il est possible au récepteur de l'objet d'acquérir les signaux de positionnement d'au moins deux pseudolites présentant des codes d'étalement correspondant, pour l'un, à un satellite du premier ensemble (S1), et, pour l'autre, à un satellite du deuxième ensemble (S2), de telle manière que le récepteur recevant ces signaux ...

A SEISMIC MEASURING SYSTEM INCLUDING GPS RECEIVERS

A system for analyzing three-dimensional seismic data includes a plurality of digitizer units (7), each with a configuration of geophones (8), a data recording and control center (12), a base GPS receiver with an associated antenna (5) with a substantially unrestricted view of the sky and at the respective digitizer units (7) low-power slave GPS receivers (6) that acquire and track GPS satellite (9) signals using tracking assistance information provided by the base GPS receiver. The slave GPS receivers (6) use the tracking assistance information to acquire and track GPS satellite signals that may be relatively weak at the receivers, due to conditions at the site, such as foliage canopies (11) and so forth. The system processes range information provided by the slave GPS receivers (6) over an extended period of time. In this way, the precise positions of the respective slave GPS receivers (6), and thus, the digitizer units, can be calculated, even if the slave GPS receivers (6) are able ...

ACQUISITION CHANNEL GEOLOCATION

A method and system are disclosed for providing an estimate of a location of a user receiver device. The method involves emitting, from at least one vehicle, at least one spot beam on Earth; and receiving, with the user receiver device, at least one spot beam. The method further involves calculating, with the user receiver device, the estimate of the location of the user receiver device according to the user receiver device's location within at least one spot beam. Each spot beam contains at least one acquisition signal, which may comprise at least one ring channel. Each ring channel comprises a frame count; a space vehicle identification (SVID); a spot beam identification (ID); and/or X, Y, Z coordinates of the vehicle emitting the spot beam relative to an Earth coordinate system. In one or more embodiments, at least one vehicle may be a satellite and/or a pseudolite.

METHOD AND APPARATUS FOR TRACKING THE POSITION AND VELOCITY OF AIRBORNE INSTRUMENTATION

A method and system for tracking the position of at least one moving object, suc h as an airborne meteorological instrument (20) from a ground processing station by intercepting wideband spread spectrum signals tra nsmitted from a plurality of satellites in which the code sequence of the signals is not known, comprises a receiver circuit in the moving object which compresses the wideband signals received into a narrow band, removes any frequency bias with a reference oscillator (12) having a frequency offset value, forms a narrow analog baseband (9) and transmits (14) to the processing station at which spectral line s are produced and compared with synthetic spectrum values to determine the identity of each satellite, the reference oscillator frequency offset value is estimated, and the location and velocity of the moving object is determined.

GLOBAL NAVIGATION SATELLITE SYSTEM RECEIVER WITH BLANKED-PRN CODE CORRELATION

A GNSS receiver includes a subsystem that reduces the adverse effects of multipath signals on punctual and early-minus-late correlation measurements by making the correlation measurements using a "blanked-PRN code." The blanked-PRN code is all zeros except for adjacent positive and negative short pulses that occur at every code bit transition in a locally-generated PRN code. Using the blanked-PRN code, the receiver makes non-zero correlation measurements only near the code bit transitions in the local PRN code. If the local PRN code and the PRN code in the received GNSS satellite signal are closely aligned, the non-zero correlation measurements are made at the times of the bit transitions in the received PRN code. The contributions to the correlation measurements of the multipath signals that do not have bit transitions during the adjacent positive and negative pulses in the blanked-PRN code cancel when the correlation measurements are accumulated - since these multipath signals are constant ...

Balise radioélectrique

Anlage zur drahtlosen Richtungsbestimmung auf Grund des Dopplereffektes

Anlage zur drahtlosen Richtungsbestimmung

Einrichtung zur Bestimmung der Zeitverzögerung zwischen zwei Impulssignalen

Verfahren und Anordnung zur Positionsbestimmung durch Funkortung

Zählwerk

Such- und Folgeempfänger

Rtk positioning system and positioning method therefor

SYSTEM OF POSITIONING BY PSEUDOLITES.

La présente invention a pour objet un système de positionnement comprenant un ensemble de pseudolites répartis dans une zone contrainte, lesdits pseudolites émettant des signaux de positionnement caractérisés par leur désynchronisation temporelle et leur fréquence Doppler apparente, ladite désynchronisation temporelle et/ou ladite fréquence Doppler apparente des signaux de positionnement émis par les pseudolites étant configurées de manière à ce qu'il n'existe aucune ambiguïté sur la localisation des pics de corrélation P1, P2, P3, P4, P5 dans la matrice d'ambiguïtés définie par le retard et la fréquence Doppler apparente des signaux de positionnement acquis par le récepteur.

Improvements with the radio beacons

PROCESS AND DEVICE OF DETERMINATION DEFINE POSITION Of a PLANE

PROCESS OF REDUCTION OF the DAZZLING Of a RECEIVER RECEIVING OF the SIGNALS SINCE TRANSMITTERS

La présente invention concerne un procédé de réduction de l'éblouissement d'au moins un récepteur (2) au sein d'un système (1) de positionnement, le système comprenant : - une pluralité d'émetteurs (3), chaque émetteur émettant des signaux modulés par un même code dont la fonction d'auto-corrélation présente un pic principal et au moins une plage blanche dans laquelle ladite fonction d'auto-corrélation est minimale, lesdits signaux comprenant pour chaque émetteur (3) un premier signal (S1) modulé par le code et un deuxième signal (S2) déphasé par rapport au premier signal, le deuxième signal (S2) étant modulé par le code qui est retardé par rapport au code modulant le premier signal (S1), - un récepteur (2), celui-ci étant configuré pour détecter les signaux émis par les émetteurs (3) et mettant en œuvre, pour la poursuite du premier (S1) et du deuxième (S2) signal émis par un des émetteurs (3), un signal local modulé par le code.

AUTONOMOUS SYSTEM OF POSITIONING BY PSEUDOLITES IN FORCED ZONE AND PROCESS OF IMPLEMENTATION

La présente invention a pour objet un système de positionnement d'un objet dans une zone contrainte, comprenant : • un ensemble de pseudolites répartis dans ladite zone contrainte et présentant chacun un code d'étalement correspondant au code d'étalement d'un satellite appartenant à une constellation de satellites d'un système de navigation par satellites, ladite constellation de satellites comprenant au moins un premier ensemble de satellites (S1) et un deuxième ensemble de satellites (S2) de visibilité disjointe, • et un récepteur situé sur l'objet à localiser, les pseudolites étant répartis dans la zone contrainte de telle sorte qu'en tout point de la zone contrainte, il est possible au récepteur de l'objet d'acquérir les signaux de positionnement d'au moins deux pseudolites présentant des codes d'étalement correspondant, pour l'un, à un satellite du premier ensemble (S1), et, pour l'autre, à un satellite du deuxième ensemble (S2), de telle manière que le récepteur recevant ces signaux ...

METHOD OF AND SYSTEM FOR LOCATING A POSITION

DEVICE OF TRANSMISSION HAS SLACK SPECTRUM

METHOD OF AND SYSTEM FOR LOCATING A POSITION

System of radio beacon of position

METHOD AND APPARATUS PROVIDING IMPROVED POSITION ESTIMATE BASED ON AN INITIAL COARSE POSITION ESTIMATE

METHOD, PSEUDOLITE, AND SYSTEM FOR PROVIDING INDOOR NAVIGATION SERVICE

GLOBAL POSITIONING SYSTEM RECEIVER AND A NAVIGATION SOLUTION CALCULATION METHOD CAPABLE OF ESTIMATING A PSEUDO-RANGE OF A SATELLITE IN CASE OF TEMPORARY CUT-OFF OF A NAVIGATION SIGNAL DUE TO AN OBSTACLE IN AN URBAN AREA OR A MOUNTAIN TOPOGRAPHY

PURPOSE: A GPS receiver and a navigation solution calculation method are provided to prevent failure in a GPS receiver and to maintain a navigation performance. CONSTITUTION: A GPS receiver includes a navigation signal reception unit(110), a navigation signal processing unit(120) and a pseudo-range estimation unit(150). The navigation signal reception unit receives a navigation signal from satellites. The navigation signal processing unit obtains positioning information of each satellite from the received navigation signal and measures a pseudo-range. The pseudo-range estimation unit judges existence of satellites capable of pseudo-range estimation if the number of navigation signal reception satellites is less than three and estimates a pseudo-range of the judged satellite. A navigation solution calculation unit calculates a navigation solution by using the measured pseudo-range and the estimated pseudo-range. COPYRIGHT KIPO 2013 [Reference numerals] (110) Navigation signal reception unit ...

localização de posição utilizando transmissores com offset de temporização

ON-THE-FLY ACCURACY ENHANCEMENT FOR CIVIL GPS RECEIVERS

Method and means for enhancing the position accuracy of a civil GPS receiver (21) by compensating for errors in its position solution with data derived from a military GPS receiver (12), wherein the civil GPS receiver may be disposed in a mobile expendable vehicle (20) and the military receiver in a mobile launch vehicle (10). The compensating data is obtained by a comparison of the pseudorange measurements of the military GPS set and another civil GPS set disposed with it in the launch vehicle and attached to the same antenna. Two embodiments are disclosed: 1) an On-the-Fly Relative Navigation technique, applicable when the expendable receiver (20) tracks the same satellites as the military and civil sets are tracking, and 2) an On-the-Fly Differential Navigation system, used when the expendable receiver (20) is not tracking the same satellites as the launch sets.

Satellite search method and receiver using the same

A satellite time dynamic search method and a receiver implementing such a method are disclosed. In the present invention, a predetermined period of time is sampled into multiple time samples. The time samples are sieved according to a search result of a satellite selected from candidate satellites each time. By repeatedly doing so, the finally remaining time sample will approach a true satellite system time, and accordingly the candidate satellites converge to the most possible ones as to facilitate satellite search.

APPARATUS AND METHOD FOR INDOOR POSITIONING

Provided is a technique for estimating an indoor position, by which a terminal may receive a positioning signal from a pseudo satellite, using a plurality of receiving antennas, determine a position of the pseudo satellite based on positional information included in the received positioning signal, estimate a direction of the pseudo satellite based on a phase difference of the positioning signal at each of the plurality of receiving antennas, and estimate a location of the terminal based on the positional information of the pseudo satellite and the estimated direction of the pseudo satellite. 1. A terminal , comprising:a receiving unit to receive a first positioning signal from a first pseudo satellite, and to receive a second positioning signal from a second pseudo satellite, using a plurality of receiving antennas;a direction estimating unit to estimate a direction of the first pseudo satellite based on a phase difference of the first positioning signal at the plurality of receiving antennas, and to estimate a direction of the second pseudo satellite based on a phase difference of the second positioning signal at the plurality of receiving antennas;a positional information extracting unit to extract positional information of the first pseudo satellite by decoding the first positioning signal, and to extract positional information of the second pseudo satellite by decoding the second positioning signal; anda position estimating unit to estimate a position of the terminal, based on the extracted positional information of the first pseudo satellite, the extracted positional information of the second pseudo satellite, the estimated direction of the first pseudo satellite, and the estimated direction of the second pseudo satellite.2. The terminal of claim 1 , wherein the first pseudo satellite and the second pseudo satellite are disposed indoors.3. The terminal of claim 1 , wherein each of the plurality of receiving antennas is disposed a predetermined distance apart ...

NAVIGATION SIGNAL TRANSMITTING APPARATUS, NAVIGATION SIGNAL TRANSMISSION METHOD AND POSITIONAL INFORMATION PROVIDING APPARATUS

A navigation signal transmitting apparatus, provided on ground, for transmitting a navigation signal to a receiver capable of positioning by receiving a spread spectrum satellite positioning signal from a satellite has first and second transmission antennas; a message generating unit that generates a message signal of positional information included in the navigation signal, and a modulating unit that modulates the message signal by a modulation process including spectrum spreading, based on spread codes of the same sequence as the satellite positioning signal allotted in advance to the navigation signal transmitting apparatus, for generating first and second navigation signals. The modulating unit executes the modulating process using either one of the first and second navigation signals as an object of demodulation at each time of reception by the receiver. 1. A navigation signal transmitting apparatus , provided on ground , for transmitting a navigation signal to a receiver capable of positioning by receiving a spread spectrum satellite positioning signal from a satellite , comprising:first and second transmission antennas;a message generating unit configured to generate a message signal of positional information included in said navigation signal; anda modulating unit configured to modulate said message signal by a modulation process including spectrum spreading, based on spread codes of the same sequence as said satellite positioning signal allotted in advance to said navigation signal transmitting apparatus, for generating first and second navigation signals; whereinsaid modulating unit is configured to execute said modulating process using either one of said first and second navigation signals as an object of demodulation at each time of reception by said receiver, 'a transmitting unit configured to transmit said first and second navigation signals from said first and second transmission antennas, respectively.', 'said navigation signal transmitting apparatus ...

INDOOR SATELLITE NAVIGATION SYSTEM

A navigation system for an enclosed area, the navigation system comprising: a) at least one satellite signal receiving station, positioned outside the enclosed area, to receive satellite signals transmitted by a constellation of satellites and to determine time synchronization information relative to the transmitted signals; b) at least one local transmitting station, positioned within the enclosed area, to transmit a local signal compatible with the transmitted satellite signals; and c) a communication channel to communicate self-alignment information between each station and at least one other station; wherein each local transmitting station uses the self-alignment information to generate the local signal; and wherein the at least one local signal provides navigation information useable by a satellite navigation receiver. 1. A navigation system for an enclosed area , the navigation system comprising:a) at least one satellite signal receiving station, positioned outside the enclosed area, to receive satellite signals transmitted by a constellation of satellites and to determine time synchronization information relative to the transmitted signals;b) at least one local transmitting station, positioned within the enclosed area, to transmit a local signal compatible with the transmitted satellite signals; andc) a communication channel to communicate self-alignment information between each station and at least one other station;wherein each local transmitting station uses the self-alignment information to generate the local signal;and wherein the at least one local signal provides navigation information useable by a satellite navigation receiver.2. The navigation system according to claim 1 , wherein the satellite signal receiving station further includes a transmitter to transmit a local signal compatible with the transmitted satellite signals.3. The navigation system according to claim 1 , wherein the self-alignment information includes information about local signal ...

Apparatus and method for processing position information

A position information processing device according to an exemplary embodiment of the present invention can include a GPS receiver adapted and configured to receive a first satellite signal, an interdevice receiver adapted and configured to receive a second satellite signal from a mobile phone, a GPS information processor adapted and configured to compare the first satellite signal with the second satellite signal and generate a third satellite signal for calculating a current position, and a controller adapted and configured to use the third satellite signal to calculate coordinates of the current position. The proposed position information processing device uses the satellite signal that is received from the mobile phone, and therefore the accuracy of the position measurement can be improved.

Pseudolite Positioning System

A positioning system comprises a set of pseudolites distributed in a confined area, said pseudolites transmitting positioning signals characterized by their time desynchronization and their apparent Doppler frequency, said time desynchronization and/or said apparent Doppler frequency of the positioning signals transmitted by the pseudolites being configured so that there is no ambiguity concerning the location of the correlation peaks P P P P P in the matrix of ambiguities defined by the delay and the apparent Doppler frequency of the positioning signals acquired by the receiver. 1. A system for positioning an object in an area of interest having a confined area , said system comprising a set of pseudolites distributed in the confined area , said pseudolites having a spreading code corresponding to the spreading code of a satellite belonging to a constellation of satellites of a satellite navigation system , and transmitting positioning signals characterized by their time desynchronization and their apparent Doppler frequency , and said object comprising a receiver capable of acquiring the positioning signals , said system further comprising: a server comprising means for configuring said time desynchronization and/or said apparent Doppler frequency of the positioning signals transmitted by the pseudolites so that there is no ambiguity concerning the location of the correlation peaks in the matrix of ambiguities defined by the delay and the apparent Doppler frequency of the positioning signals acquired by the receiver.2. The system as claimed in claim 1 , further comprising means for controlling the power of the positioning signals transmitted by the pseudolites.3. The system as claimed in claim 1 , wherein the time desynchronization and the apparent Doppler frequency of the positioning signals transmitted by the pseudolites are first programmed at each pseudolite.4. The system as claimed in claim 1 , wherein all the pseudolites have the same spreading code.5. The ...

PSEUDO-SATELLITE AND METHOD FOR TRANSMITTING MAGNITUDE-CONTROLLED NAVIGATION SIGNAL IN GLOBAL NAVIGATION SATELLITE SYSTEM

A pseudo-satellite for transmitting a magnitude-controlled navigation signal in a GNSS includes: an interface unit configured to receive a unique identifier of a pseudo-satellite; a signal transmission unit configured to transmit a navigation signal for location positioning in the GNSS; and a control unit configured to control the magnitude of the navigation signal transmitted by the signal transmission unit, using an envelope having a period which is determined according to the unique identifier of the pseudo-satellite, received through the interface unit. 1. A pseudo-satellite for transmitting a magnitude-controlled navigation signal in a global navigation satellite system (GNSS) , comprising:an interface unit configured to receive a unique identifier of a pseudo-satellite;a signal transmission unit configured to transmit a navigation signal for location positioning in the GNSS; and{'sub': 'i', 'a control unit configured to control the magnitude of the navigation signal transmitted by the signal transmission unit, using an envelope having a period Twhich is determined according to the unique identifier of the pseudo-satellite, received through the interface unit.'}2. The pseudo-satellite of claim 1 , wherein the control unit comprises a period determination section configured to determine the period Tas an inverse number of a prime number preset for a unique identifier of the pseudo-satellite.3. The pseudo-satellite of claim 2 , wherein the control unit further comprises an envelope calculation section configured to calculate an envelope having the period Tdetermined by the period determination section.5. The pseudo-satellite of claim 4 , wherein the control unit further comprises a signal magnitude control section configured to control the magnitude of the navigation signal transmitted by the signal transmission unit based on the following expression:{'br': None, 'sub': i', 'i', 'i, 'i': t', 't', 'Env', 't, 'Signal()=GNSS_Waveform()×()'}{'sub': i', 'i, 'where ...

DETERMINING AN ESTIMATED LOCATION

A receiver is configured to receive signals wirelessly from a plurality of pseudolites, each signal including information defining a pseudolite from which the signal was transmitted. The receiver is configured to determine an estimated location based on which combination of two or more pseudolites the receiver is currently within range of. The receiver may determine the estimated location independently of a time taken for each one of the signals to reach the receiver from the two or more pseudolites. The signals may be formatted according to a global navigation satellite system GNSS specification. 1. A receiver comprising:an antenna configured to receive signals wirelessly from a plurality of pseudolites, each one of the signals including information defining a pseudolite from which the signal was transmitted; andmeans for determining an estimated location of the receiver based on which combination of two or more pseudolites the receiver is currently within range of.2. The receiver of claim 1 , wherein the receiver is configured to determine the estimated location based on known locations of the two or more pseudolites.3. The receiver of claim 2 , wherein the receiver is configured to determine the estimated location as a mean location of the two or more pseudolites.4. The receiver of claim 2 , wherein the receiver is configured to measure a power of signals received from at least three of the plurality of pseudolites claim 2 , and to determine the estimated location based on measured signal powers and known transmission powers of the at least three pseudolites.5. The receiver of claim 2 , wherein the receiver is configured to determine the estimated location independently of a time taken for each one of the signals to reach the receiver from the two or more pseudolites.6. The receiver of claim 5 , wherein the receiver is configured to determine the estimated location based only on known locations of the two or more pseudolites claim 5 , orwherein the receiver is ...

METHOD, DEVICE AND SERVER FOR ESTIMATION OF IFB CALIBRATION VALUE

According to the present application, when an inter frequency bias (IFB) calibration value, which corresponds to a machine type ID of a reference station, is not stored in a storage, a processor executes a Real Time Kinematic (RTK) calculation by using reference station-positioning data and positioning terminal-positioning data, calculates a positioning solution, and causes the storage to store the reference station-positioning data and the positioning terminal-positioning data. The processor executes, after completing a positioning processing, an estimation processing of the IFB calibration value by using the reference station-positioning data and the positioning terminal-positioning data which are stored in the storage. 1. An estimation method of an IFB calibration value of a reference station by a device for determining coordinates of a moving object based on positioning signals transmitted from a plurality of satellites , the estimation method comprising:acquiring information for specifying the reference station based on reference station data received from the reference station;determining whether or not the IFB calibration value of the reference station corresponding to the information for specifying the reference station is stored in a storage; andwhen the IFB calibration value of the reference station is not stored in the storage, estimating the IFB calibration value of the reference station by using information obtained by a positioning calculation based on the positioning signals.2. The estimation method of an IFB calibration value of claim 1 , further comprising:calculating a positioning solution indicating the coordinates of the moving object by using a satellite signal, positioning data included in the reference station data, and candidates for the IFB calibration value; andestimating the IFB calibration value of the reference station based on accuracy of the positioning solution for each of the candidates for the IFB calibration value.3. The estimation ...

Geolocation and frequency synchronization of earth-based satellite uplinks

A system for providing physical state estimation that can include an emitter configured to emit a structured energy emission within a transmission medium. The system can also include a transponder configured to receive the structured energy emission propagated through a transmission medium from the emitter emit the structured energy emission without significant modification of the internal structure of the energy emission. The system can further include an interceptor configured to receive the transponded structured energy emission propagated through a transmission medium from the emitter. The interceptor can also be configured to process the received emissions using spectral compression utilizing a non-linear operation to produce a set of observables suitable for physical state estimation and communicate the set of observables to a physical state estimator. The yet further include a physical state estimator configured to determine member of the relative physical state.

METHOD FOR TRANSPORTING FUEL TO A GEOGRAPHIC SPECIFIC LOCATION AND RETRIEVING EMPTY FUEL HOSE

A method for transporting fuel to a geographic specific location and retrieving empty fuel hose by connecting a fuel hose to a vessel, deploying the fuel hose from the moveable container associated with the tugger while transporting the moveable container and tugger to a temporary fuel terminal with a manifold, connecting the fuel hose to the manifold, charging the fuel hose with fuel from the vessel, and retrieving the fuel hose by passing the fuel hose over a lead roller mounted to the frame in the first segment to a second segment. The fuel hose is aligned in the tugger for high speed retrieval without entanglement for storage in a moveable container. 1. A method for transporting fuel to a geographic specific location and retrieving an empty fuel hose comprising: (i) a frame having a first segment connected with a second segment, wherein the first segment is at an angle of from five degrees to forty-five degrees with the second segment;', '(ii) at least one lower drive roller secured to the second segment;', '(iii) a drive arm secured to the frame;', '(iv) a top drive roller secured with the drive arm, wherein the top drive roller can be operatively aligned with the lower drive roller by moving the drive arm;', '(v) at least one roller support connected with the frame;', '(vi) at least one roller operatively supported by the at least one roller support;', '(vii) at least one lead roller secured with the first segment; and', '(viii) a frame roller secured with the second segment opposite the first segment;, 'a. connecting a fuel hose to a vessel, the fuel hose in a moveable container associated with a tugger, the tugger comprisesb. deploying the fuel hose from the moveable container associated with the tugger while transporting the moveable container and the tugger to a temporary fuel terminal with a manifold;c. connecting the fuel hose to the manifold;d. charging the fuel hose with fuel from the vessel, wherein the fuel is a diesel fuel or a diesel fuel ...

Localization and Tracking Using Location, Signal Strength, and Pseudorange Data

A localization server improves position estimates of global navigation satellite systems (GNSS) using probabilistic shadow matching and pseudorange matching is disclosed herein. The localization server may utilize one or more of the following information: the locations of the satellites, the GNSS receiver's location estimate and associated estimated uncertainty, the reported pseudoranges of the satellites, the GNSS estimated clock bias, the SNRs of the satellites, and 3D environment information regarding the location of the receiver. The localization server utilizes a Bayesian framework to calculate an improved location estimate using the GNSS location fixes, pseudorange information, and satellite SNRs thereby improving localization and tracking for a user device. 1. A method for determining a location of a user device , the method comprising:receiving, from a satellite system, a first data point of GNSS, SNR, and pseudorange data at a GNSS receiver included in the user device, wherein the satellite system includes a plurality of satellites;initializing a first particle set based on the first data point, wherein each particle in the first particle set represents a hypothetical location of the user device;predicting a distribution of particle locations for each particle in the first particle set using a motion model;sampling the predicted distributions of particle locations for each particle in the first particle to create a second particle set, wherein each particle in the second particle set represents a hypothetical location of the user device after an update interval;receiving a second data point of GNSS, SNR, and pseudorange data, wherein the pseudorange data includes a plurality of pseudorange estimates, each pseudorange estimate associated with one of the plurality of satellites; determining a likelihood of a signal between each of the plurality of satellites and the hypothetical location of the particle being line-of-sight and a likelihood of the signal ...

PSEUDO SATELLITE NAVIGATION SIGNAL REPEATING DEVICE AND OPERATING METHOD OF PSEUDO SATELLITE NAVIGATION SIGNAL REPEATING DEVICE

A pseudo satellite navigation signal repeating device includes a communication interface configured to collect orbit information of navigation satellites from a global navigation satellite information server through a network, a controller configured to calculate pseudo ranges from associated navigation satellites based on associated orbit information of the associated navigation satellites among orbit information of all the navigation satellites, a signal generator configured to generate global navigation satellite baseband digital signals of the associated navigation satellites based on the pseudo ranges, a signal converter configured to convert the navigation signals into analog baseband or intermediate frequency band signals, and a modulator configured to modulate the analog baseband or intermediate frequency band signals using a wireless carrier signal. 1. A pseudo satellite navigation signal repeating device comprising:a communication interface configured to collect orbit information of navigation satellites from a global navigation satellite information server through a network;a controller configured to calculate pseudo ranges from associated navigation satellites based on associated orbit information of the associated navigation satellites among orbit information of all the navigation satellites;a signal generator configured to generate navigation signals of the associated navigation satellites based on the pseudo ranges;a signal converter configured to convert the navigation signals into analog signals of base band or intermediate band; anda modulator configured to modulate the analog signals using a wireless carrier signal.2. The pseudo satellite navigation signal repeating device as set forth in claim 1 , wherein:the controller is configured to select navigation satellites calculated to transmit navigation signals to a current location at a current time as the associated navigation satellites, based on the orbit information.3. The pseudo satellite ...

SYSTEM AND METHOD FOR NAVIGATION WITH LIMITED SATELLITE COVERAGE AREA

A system and method for providing navigation through an underground space. The method includes receiving ephemeris data of a plurality of satellites in orbit at a location of the underground space, determining a schedule of the plurality of satellites in orbit, obtaining location of a plurality of pseudolites within the underground space, and determining satellite parameters to configure each of the plurality of pseudolites. Satellite parameters are determined based on the obtained location of each pseudolites and the determined satellite schedule. Also, the satellite parameters include at least a signal modulation parameter and a broadcast data parameter. The method also includes configuring each of the plurality of pseudolites with the respective satellite parameters, and controlling the plurality of pseudolites to broadcast satellite signals based on the determined satellite parameters. The broadcasted satellite signals simulate locations of the plurality of satellites in orbit.

SATELLITE INTEGRITY MONITORING WITH CROWDSOURCED MOBILE DEVICE DATA

Disclosed are a system, apparatus, and method for monitoring integrity of satellites, and global navigation satellite systems (GNSS). One or more satellites in one or more GNSS are monitored based on a reference crowdsourced integrity report. One or more satellite integrity metrics are determined for the one or more satellites based at least on signals from the one or more satellites. A position of the mobile device is estimated. The position of the mobile device and the one or more satellite integrity metrics are provided. 1. A method for a mobile device to monitor satellite integrity , the method comprising:obtaining one or more satellites in one or more global navigation satellite systems (GNSS) to monitor based on a reference crowdsourced integrity report;determining, at the mobile device, one or more satellite integrity metrics for the one or more satellites based at least on signals from the one or more satellites;estimating a position of the mobile device; andproviding the position of the mobile device and the one or more satellite integrity metrics.2. The method of claim 1 , wherein the one or more integrity metrics includes one or more of:pseudorange metrics between the mobile device and the one or more satellites,pseudorange rate metrics between the mobile device and the one or more satellites,carrier phase metrics from the one or more satellites,signal identifier for the one or more satellites,signal strength for received satellite signals,navigation messages from the one or more satellites,determination of satellite signal integrity,confidence rating the one or more integrity metrics, orany combination thereof.3. The method of claim 1 , wherein the providing the position of the mobile device and the one or more satellite integrity metrics comprises:selecting a subset of the one or more satellite integrity metrics for the one or more satellites based on a request for particular crowdsourced metrics; andproviding the position of the mobile device and the ...

SYSTEMS AND METHODS FOR GENERATING SIGNALS FROM TERRESTRIAL TRANSMITTERS, AND FOR PROCESSING THE SIGNALS USING GNSS RECEIVER HARDWARE

Generating signals from non-GNSS transmitters, and processing the signals using a GNSS positioning module. Systems and methods identify a chipping rate, identify a PN code length, generate a PN code that has a length equal to the identified PN code length, generate a positioning signal using the identified chipping rate and the generated PN code, and transmit the positioning signal from the transmitter. The PN code length may produce, at the identified chipping rate, a PN code duration that is equal to or is a multiple of a PN code duration used in a GNSS system, the identified chipping rate may be equal to or a multiple of a chipping rate used in a GNSS system, and the identified PN code length may be equal to or a multiple of a PN code length used in a GNSS system. 1. A method for transmitting a positioning signal from a transmitter of a non-GNSS positioning system for use by GNSS receiver hardware , the method comprising:identifying a chipping rate;identifying a PN code length;generating a PN code,wherein the generated PN code has a length equal to the identified PN code length;generating a positioning signal using the identified chipping rate and the generated PN code; andtransmitting the positioning signal from the transmitter.2. The method of claim 1 , the method comprising:identifying a transmission bandwidth for the positioning signal that exceeds a chipping bandwidth of the identified chipping rate; andgenerating a transmit pulse shape having a bandwidth that is equal to the transmission bandwidth,wherein the positioning signal is generated using the identified chipping rate, the generated transmit pulse shape, and the generated PN code.3. The method of claim 2 , wherein the chipping bandwidth of the identified chipping rate is less than half of the transmission bandwidth.4. The method of claim 1 , wherein the generated PN code is not a PN code that is used by any GNSS system of a plurality of GNSS systems that includes GPS claim 1 , GLONASS claim 1 , ...

LOCALIZATION OF VEHICLES USING BEACONS

Embodiments are disclosed for localization of vehicles using beacons. In an embodiment, a method comprises: determining, using at least one processor of a vehicle, that the vehicle has lost external signals (or is receiving degraded external signals) that are used for estimating a position of the vehicle; determining, using the at least one processor, a set of mobile beacons that are available to assist in estimating the position of the vehicle; receiving, using a communication device of the vehicle, broadcast signals from the set of mobile beacons, the broadcast signals including localization data for the set of mobile beacons; selecting, using the at least one processor, a subset of localization data from the set of mobile beacons for assisting in the position estimation of the vehicle; and estimating, using the at least one processor, the position of the vehicle using the subset of localization data. 1. A method comprising:determining, using at least one processor of a vehicle, that the vehicle has lost external signals that are used for estimating a position of the vehicle;determining, using the at least one processor, a set of mobile beacons that are available to assist in estimating the position of the vehicle;receiving, using a communication device of the vehicle, broadcast signals from the set of mobile beacons, the broadcast signals including localization data for the set of mobile beacons;selecting, using the at least one processor, a subset of localization data from the set of mobile beacons for assisting in the position estimation of the vehicle; andestimating, using the at least one processor, the position of the vehicle using the subset of localization data.2. The method of claim 1 , wherein the subset of localization data include estimated locations of the set of mobile beacons and uncertainty values associated with the estimated locations claim 1 , and the subset of mobile beacons are selected based at least in part on the uncertainty values.3. The ...

VISIBLE LIGHT COMMUNICATION BASED POSITIONING

A navigation system using Visible Light Communications (VLC), the associated transmitters and receivers, the navigation system comprising a plurality of VLC transmitters ( to ) and one or more GNSS receiver (), each of the VLC transmitters being configured to transmit a positioning signal comprising a navigation message including time information, where the time information is a transmission time of a specific part of said navigation message derived from a GNSS reference time. The receivers () according to the invention are configured to calculate a position from either VLC pseudo ranges, GNSS pseudo ranges, or a combination thereof. 1. A navigation system using Visible Light Communications (VLC) , the navigation system comprising one or more GNSS receivers configured to compute a GNSS reference time from GNSS positioning signals , and one or more VLC transmitters configured to transmit a VLC positioning signal comprising a navigation message including time information , where the time information is a transmission time of a specific part of said navigation message derived from said GNSS reference time.2. The navigation system of claim 1 , wherein the navigation message is modulated by a pseudo random sequence said pseudo-random sequence being different for each VLC transmitter within a same area.3. The navigation system of claim 1 , further comprising a central equipment linked to the VLC transmitters and to the one or more GNSS receivers claim 1 , said central equipment being configured to calculate and send the positioning signals to the plurality of VLC transmitters.4. The navigation system of claim 1 , further comprising a central equipment linked to the VLC transmitters and the one or more GNSS receivers claim 1 , said central equipment being configured to calculate and send said time information to the VLC transmitters.5. The navigation system of claim 1 , wherein each VLC transmitter is connected to a GNSS receiver.6. The navigation system of claim 1 , ...

DELIVERY OF PRECISE TIME TO GPS RECEIVERS IN AN ON-BOARD UNIT OVER DEDICATED SHORT RANGE COMMUNICATIONS OR C-V2X AND WAY IN DSRC CONNECTED VEHICLE NETWORK TO ENHANCE OBE GPS PERFORMANCE

On-board equipment for a motor vehicle includes a DSRC radio receiving a signal from road side equipment. The signal has an accurate frequency in accordance with GPS time. A GPS receiver is communicatively coupled to the DSRC radio. The on-board equipment determines the GPS accurate time and provides the GPS accurate time to the GPS receiver. The determining of the GPS accurate time is dependent upon the accurate frequency in the signal. 1. On-board equipment for a motor vehicle , the on-board equipment comprising:a radio configured to receive a signal from road side equipment, the signal having accurate GPS location information; anda GPS receiver communicatively coupled to the radio, the on-board equipment being configured to determine an accurate GPS location and provide the accurate GPS location to the GPS receiver, the determining of the accurate GPS location being dependent upon the accurate GPS location information in the signal.2. The on-board equipment of wherein the radio comprises a DSRC radio.3. The on-board equipment of wherein the radio comprises a C-V2X radio.4. The on-board equipment of Wherein the on-board unit and GPS receiver are configured to determine the accurate GPS location in less than ten seconds.5. The on-board equipment of wherein the accurate GPS location includes a position and elevation.6. The on-board equipment of wherein the signal is dependent upon Ephemeris data.7. The on-board equipment of wherein the signal includes Ephemeris data.8. A method of operating on-board equipment in a motor vehicle claim 1 , the method comprising:providing the on-board equipment with an on-board unit including a radio and a GPS receiver;using the radio to receive a signal from road side equipment, the signal having accurate GPS location information;determining within the on-board equipment an accurate GPS location, the determining of the accurate GPS location being dependent upon the accurate GPS location information; andproviding the accurate GPS ...

METHOD AND DEVICE FOR IDENTIFYING SYNCHRONIZATION PRIORITY

Embodiments of the present disclosure provide a method and a device for identifying a synchronization priority, including: determining a synchronization priority of a node according a connection relationship between the node and a Global Navigation Satellite System (GNSS) and a relative relationship between the node and a coverage scope of an eNB; configuring a synchronization sequence and an in coverage flag of the node according to the synchronization priority of the node. Combination of the synchronization sequence and the in coverage flag of the node is used to identify the synchronization priority of the node. 1. A method for identifying a synchronization priority , comprising:determining a synchronization priority of a node according a connection relationship between the node and a Global Navigation Satellite System (GNSS) and a relative relationship between the node and a coverage scope of an eNB; andconfiguring a synchronization sequence and an in coverage flag of the node according to the synchronization priority of the node; wherein combination of the synchronization sequence and the in coverage flag of the node is used to identify the synchronization priority of the node.2. The method according to claim 1 , wherein the relative relationship between the node and the coverage scope of the eNB comprises: a first relative relationship claim 1 , a second relative relationship and a third relative relationship;the first relative relationship includes that the node is in the coverage of the eNB; the second relative relationship includes that the node is out of the coverage of the eNB, but the node is able to receive synchronization information from a node that is in the coverage of the eNB and synchronizes with the node that is in the coverage of the eNB; the third relative relationship includes that the node is out of the coverage of the eNB, but the node is not able to receive the synchronization information from the node that is in the coverage of the eNB.3. ...

Globally referenced positioning in a shielded environment

A method, apparatus and system for globally referenced positioning in a shielded environment includes integrating and correlating information from a UWB receiver, a GPS receiver, and a bent-path GPS receiver adapted to extract a GPS radio frequency wave from a heterodyned GPS signal. The method, apparatus, and system is resistant to interference and can be used in a shielded environment such as indoors or behind a line-of-sight barrier.

Satellite integrity monitoring with crowdsourced mobile device data

Disclosed are a system, apparatus, and method for monitoring integrity of satellites, and global navigation satellite systems (GNSS). One or more satellites in one or more GNSS are monitored based on a reference crowdsourced integrity report. One or more satellite integrity metrics are determined for the one or more satellites based at least on signals from the one or more satellites. A position of the mobile device is estimated. The position of the mobile device and the one or more satellite integrity metrics are provided.

WIENER-BASED METHOD FOR SPOOFING DETECTION

An apparatus that performs spoof detection of satellite signals based on clock information derived from the satellite signals. The apparatus may include a position, velocity, time (PVT) component that derives the clock information from the satellite signals and provides the clock information to a spoof detection mechanism. In some embodiments, the clock frequency estimate is modeled as a Wiener process. 1. An apparatus for spoofing detection comprising:a receiving component configured to receive one or more global navigation satellite system (GNSS) signals; receive the one or more GNSS signals from the receiving component; and', 'derive, from the one or more GNSS signals, one or more GNSS measurements, wherein the one or more GNSS measurements include an observed behavior of the one or more GNSS signals, wherein the observed behavior includes one or more estimates of Doppler shift; and, 'a signal processor configured to derive clock information from the one or more GNSS measurements, wherein the clock information includes a clock frequency estimate and a standard deviation of clock frequency estimate error;', 'calculate an observed behavior associated with the one or more GNSS signals based on the clock frequency estimate and the standard deviation of clock frequency estimate error; and', 'identifying the one or more GNSS signals as being spoofed based on a comparison between the observed behavior and an expected behavior of the one or more GNSS measurements., 'a PVT component configured to2. The apparatus of claim 1 , wherein the expected behavior of the one or more GNSS measurements and an expected behavior of the clock frequency estimate are modeled as from a Wiener process.3. The apparatus of claim 1 , further comprising:a memory implemented as a circular buffer.4. The apparatus of claim 3 , wherein to calculate the observed behavior associated with the one or more GNSS signals further comprises:retrieving a plurality of historical samples from the memory, ...

FEEDBACK BASED INDOOR LOCALIZATION USING DIGITAL OFF-AIR ACCESS UNITS

A system for indoor localization using satellite navigation signals in a Distributed Antenna System includes a plurality of Off-Air Access Units (OAAUs). Each of the plurality of OAAUs is operable to receive an individual satellite navigation signal from at least one of a plurality of satellites and operable to route signals optically to one or more DAUs. The system also includes a plurality of remote DRUs located at a remote location. The plurality of remote DRUs are operable to receive signals from a plurality of local DAUs. The system further includes an algorithm to delay each individual satellite navigation signal for providing indoor localization at each of the plurality of DRUs and a GPS receiver at the remote location used in a feedback loop with the DRU to control the delays. 1a plurality of Off-Air Access Units (OAAUs), each of the plurality of OAAUs operable to receive an individual satellite navigation signal from at least one of a plurality of satellites and operable to route signals optically to one or more DAUs;a plurality of remote DRUs located at a remote location, wherein the plurality of remote DRUs are operable to receive signals from a plurality of local DAUs;an algorithm to delay each individual satellite navigation signal for providing indoor localization at each of the plurality of DRUs; anda GPS receiver at the remote location used in a feedback loop with the DRU to control the delays.. A system for indoor localization using satellite navigation signals in a Distributed Antenna System, the system comprising: This application is a continuation of pending U.S. patent application Ser. No. 15/279,136 filed Sep. 28, 2016, which is a continuation of U.S. patent application Ser. No. 14/171,600, filed Feb. 3, 2014 and issued as U.S. Pat. No. 9,476,984 on Oct. 25, 2016; which claims priority to U.S. Provisional Patent Application No. 61/761,183, filed on Feb. 5, 2013. The aforementioned applications, and issued patent, are incorporated herein by ...

FEEDBACK BASED INDOOR LOCALIZATION USING DIGITAL OFF-AIR ACCESS UNITS

A system for indoor localization using satellite navigation signals in a Distributed Antenna System includes a plurality of Off-Air Access Units (OAAUs). Each of the plurality of OAAUs is operable to receive an individual satellite navigation signal from at least one of a plurality of satellites and operable to route signals optically to one or more DAUs. The system also includes a plurality of remote DRUs located at a remote location. The plurality of remote DRUs are operable to receive signals from a plurality of local DAUs. The system further includes an algorithm to delay each individual satellite navigation signal for providing indoor localization at each of the plurality of DRUs and a GPS receiver at the remote location used in a feedback loop with the DRU to control the delays. 1. (canceled)2. A method for providing feedback in a distributed antenna system , the method comprising:transmitting, by a remote unit, one or more delayed satellite navigation radio frequency (RF) signals;receiving, by a remote satellite navigation system receiver, the one or more delayed satellite navigation RF signals;calculating, by the remote satellite navigation system receiver, a measured geographic position corresponding to the one or more delayed satellite navigation RF signals;transmitting, by the remote satellite navigation system receiver, the measured geographic position;receiving, by a feedback system, the measured geographic position; andupdating, by the feedback system, a calculated delay based on the measured geographic position.3. The method of wherein updating the calculated delay based on the measured geographic position further comprises:receiving a predetermined geographic position;calculating a position error value corresponding to the predetermined geographic position and the measured geographic position; andprocessing, by an adaptive algorithm, the position error value, wherein the adaptive algorithm outputs a new calculated delay.4. The method of further ...

Method and Apparatus for Determining Device Location

A satellite-based positioning receiver is provided that is configured to combine non-concurrent sets of pseudoranges all taken at a common location to determine at least a 2D position of the common location. 1. A method of combining non-concurrent pseudoranges , comprising:obtaining a plurality of non-concurrent pseudorange sets corresponding to a common location, wherein each set comprises a concurrent pair of pseudoranges or a concurrent triplet of pseudoranges; andsolving for at least a 2D position of the common location using the plurality of non-concurrent pseudorange sets.2. The method of claim 1 , wherein solving for at least a 2D position comprises solving for a 3D position of the common location.3. The method of claim 1 , wherein each non-concurrent pseudorange set comprises a concurrent pair of pseudoranges.4. The method of claim 1 , wherein obtaining at least one of the pseudoranges in the non-current pseudorange sets comprises:at the common location, sampling a series of received PRN sequences at an SPS sampling rate to provide original time samples;generating perfect reference samples of a perfect reference of a series of perfect reference PRN sequences corresponding to original time samples;re-sampling either the original time samples or the perfect reference samples at each of a plurality of effective sampling rates to form corresponding re-sampled sets of time samples, wherein if the original time samples re re-sampled, the perfect reference samples are not-re-sampled samples, and wherein if the perfect reference samples are re-sampled the original time samples are not-re-sampled samples;coherently cross-correlating each of the re-sampled sets of time samples with the not-re-sampled samples to form corresponding coherent sums; andtesting each coherent sum to find a cross-correlation peak and determine an arrival time for the received PRN sequences5. A receiver claim 1 , comprising:an analog-to-digital converter (ADC) configured to sample a series of ...

Device and method for generating and providing position information

Individual pieces of position information are used to determine a location using a processor and multiple local position transmitters. The processor is supplied with at least four different navigation signals, each of which corresponds to a satellite signal on the basis of the global navigation satellite system. Each navigation signal contains information on the transmission time and the transmission location. The processor generates at least four modified navigation signals by temporally shifting navigation signals relative to one another such that the target location coordinates which can be obtained therefrom correspond to a target location on the basis of the global navigation satellite system. An analyzer then superimposes the at least four modified navigation signals in order to form a modified summation navigation signal and transmits same to the local position transmitters. The summation navigation signal is calculated individually for each local position transmitter.

NAVIGATION SYSTEM AND NAVIGATION METHOD

There is provided a navigation system, comprising: a buoy on a water surface movably anchored to a bottom; a plurality of at least three transmitters fixed to the bottom or at different positions in the water for transmitting signals to specify the positions; a receiver, being disposed with the buoy, configured to receive signals transmitted by the plurality of transmitters; a signal processor, being disposed with the buoy, configured to specify the position of the buoy, based on the signals received by the receiver, and generate a navigation signal indicating the position of the buoy, and a radio, being disposed with the buoy, configured to transmit the navigation signal generated in the signal processor wirelessly, the navigation signal being receivable by a radio in a mobile body. 1. A navigation system comprising:a buoy on a water surface movably anchored to a bottom;a plurality of transmitters fixed to the bottom or at different positions in the water for transmitting signals to specify the positions, the plurality of transmitters including at least three transmitters;a receiver, being disposed with the buoy, configured to receive signals transmitted by the plurality of transmitters;a signal processor, being disposed with the buoy, configured to specify the position of the buoy, on a basis of the signals received by the receiver, and generate a navigation signal indicating the position of the buoy, anda radio, being disposed with the buoy, configured to transmit the navigation signal generated in the signal processor wirelessly, the navigation signal being receivable by a radio in a mobile body.2. The navigation system according to claim 1 , further comprisinga satellite navigation system configured to receive satellite navigation signals originating from at least three satellites comprising a navigation satellite system, and configured to specify the position of the buoy based on a basis of received satellite navigation signals, anda storage device configured ...

Platform Relative Navigation Using Range Measurements

A method for platform relative navigation using range measurements involves four or more transmitters of positioning signals located on and/or near a platform of a first object and a second object approaching the platform that includes three or more receivers for receiving the positioning signals. For each received positioning signal, a range measurement between the transmitter of the positioning signal and the receiver of the positioning signal is performed. The relative position and relative attitude of a body frame of the second object is estimated with regard to the first object by processing the range measurements with a state space estimation algorithm implementing a model of the system of the first and second object. 116-. (canceled)17. A method for platform relative navigation using range measurements , wherein four or more transmitters of positioning signals are located on or near a platform of a first object and a second object approaching the platform comprises three or more receivers for receiving the positioning signals , wherein the method comprises the acts of:performing, for each received positioning signal, a range measurement between one of the transmitters of the positioning signal and one of the receivers of the positioning signal; anddirectly estimating, by a processor, a relative position and relative attitude of a body frame of the second object with regard to the first object by processing the range measurements with a state space estimation algorithm implementing a model of the system of the first and second object.18. The method claim 17 , wherein the directly estimating of the relative position and relative attitude of a body frame of the second object with regard to the first object further comprises processing measurements of one or more additional sensors claim 17 , which include a radar or laser altimeter.19. The method of claim 17 , wherein the state space estimation algorithm is a Kalman filter claim 17 , a Sigma-Point filter or ...

METHOD AND APPARATUS FOR PROVIDING SECURE TIMING AND POSITION SYNCHRONIZATION FROM GNSS

A securing interface apparatus to be inserted between a GNSS antenna and a first, unsecured, GNSS receiver fed by the antenna, for providing immunity against spoofing or jamming or interrupting of the timing provided by the first unsecured GNSS receiver. The securing interface apparatus comprises (a) a second GNSS receiver, fed by the antenna and including a local oscillator and being immune against spoofing or jamming of timing, for outputting trusted timing and the last GNSS data, the second GNSS receiver including a detection module which is adapted to analyze raw RF signals received from GNSS satellites and verify the signals integrity and authenticity (b) a GNSS Simulator, fed by the trusted timing and GNSS data, the GNSS Simulator is adapted to: as long as the received GNSS data is found authentic, allowing the received GNSS data to reach the input of the first, unsecured, GNSS receiver; upon detecting that the received GNSS data is not authentic, produce, using the output of the local oscillator and at least a portion of the last GNSS data, redundant simulated RF GNSS signals mimicking raw RF signals received from GNSS satellites; and transmit the redundant simulated RF GNSS to the input of the first unsecured GNSS receiver. 1. A securing interface apparatus to be inserted between a GNSS antenna and a first , unsecured , GNSS receiver fed by said antenna , for providing immunity against spoofing or jamming or interrupting of the timing provided by said first unsecured GNSS receiver , said securing interface apparatus comprising:a) a second GNSS receiver, fed by said antenna and including a local oscillator and being immune against spoofing or jamming of timing, for outputting trusted timing and the last GNSS data, said second GNSS receiver including a detection module which is adapted to analyze raw RF signals received from GNSS satellites and verify the signals integrity and authenticity; b.1) as long as said received GNSS data is found authentic, allowing ...

PROGRAMMABLE REFERENCE BEACONS

Search and rescue (SAR) systems utilizing Earth-orbiting satellites are provided. In one implementation, a SAR system comprises a plurality of reference beacons, each having a known geographical location, and a ground-based station. The ground-based station includes one or more antennas for communicating with the reference beacons via a plurality of Earth orbiting satellites. The ground-based station is configured to receive reference signals from each of the reference beacons and calculate estimates of the locations of the reference beacons from the received reference signals. Also, the ground-based station is configured to calculate system calibration factors based on the location estimates and known geographical locations of the reference beacons. The ground-based station is further configured to receive distress signals from at least one distress beacon via the Earth-orbiting satellites and calibrate the distress signals based on the system calibration factors. 1. A search and rescue (SAR) system comprising:a plurality of reference beacons, each reference beacon having a known geographical location; anda ground-based station having one or more antennas for communicating with the plurality of reference beacons via a plurality of Earth-orbiting satellites;wherein the ground-based station is configured to receive reference signals from each of the reference beacons and calculate estimates of the locations of the reference beacons from the received reference signals;wherein the ground-based station is further configured to receive location information related to the known geographical locations of the reference beacons and calculate system calibration factors based on the location estimates and the location information; andwherein the ground-based station is further configured to receive distress signals from at least one distress beacon via the Earth-orbiting satellites and calibrate the distress signals based on the system calibration factors.2. The SAR system of ...

Data dissemination in a navigation or communication system

This relates to a method for disseminating data in a navigation or communication system comprising several transmitters for signals, wherein a common frame structure is provided for the signals and each transmitter disseminates common data and transmitter-dedicated data with its transmitted signal, and wherein the method comprises the following acts to be executed by each one of the transmitters: receiving the common data encoded with a first encoding scheme; encoding transmitter-dedicated data onboard the transmitter with a second encoding scheme; assigning the encoded common data to a number of first frames of the frame structure provided for the signals and assigning the encoded transmitter-dedicated data to a number of second frames of the frame structure provided for the signals, wherein the second frames differ from the first frames; assembling a signal to be transmitted from the number of first and second frames; and transmitting the assembled signal.

METHOD AND SYSTEMS FOR RESTORING A GPS SIGNAL

A method and system for restoring a GPS signal is provided. The method including the steps of receiving a target location , receiving location of visible satellites, calculating a transmit delay, calculating a Doppler offset, calculating a chipping offset, computing navigating data and PRN codes, formulating signals using the transmit delay, Doppler offset, chipping offset, navigation data and PRN codes, and transmitting the formulated signal. 1. A method of restoring a GPS signal , the comprising the steps of:receiving a location of a target;calculating, by a processor, for each of a plurality of GPS satellites visible to the target a GPS signal as it would be received by the target according to the location of the target and the respective location of each of the plurality of GPS satellites visible to the target;transmitting, by an antenna, the calculated signal of each of the plurality of visible GPS satellites to the target, wherein the calculation is based, in part, on the location of the target, the respective location of each of the plurality of GPS satellites visible to the target, the location of the antenna, and time2. The method of claim 1 , wherein the step of calculating comprises the step of calculating a transmit delay for each of the plurality of visible GPS satellites.3. The method of claim 1 , wherein the step of calculating comprises the step of calculating a Doppler shift for each of the plurality of visible GPS satellites.4. The method of claim 1 , wherein the step of calculating comprises the step of calculating a chipping frequency offset for each of the plurality of visible GPS satellites.5. The method of claim 1 , wherein the step of calculating comprises the step of determining navigation data for each of the plurality of visible GPS satellites.10. The method of claim 5 , wherein determining the navigation data comprises selecting claim 5 , for each of the plurality of visible satellites claim 5 , a PRN code claim 5 , and determining a ...

SYSTEM AND METHOD FOR VALIDATING GNSS LOCATION INPUT

A computer implemented method of validating an output from a GNSS at a receiver including a fusion system comprising location sensors. A location estimate and a location error estimate are computed. A navigation update including a sensor location estimate and sensor location error estimate is also computed with the fusion system based on sensor measurements from the location sensors. A determination is made as to whether or not GNSS filters should be applied based at least on the location estimate, the sensor location estimate, and the sensor location error estimate. When GNSS filters should be applied, the location estimate and/or the location error estimate may be adjusted or rejected and a new navigation update may be computed with the fusion system based on the adjustment or rejection. When the GNSS filters should not be applied, the new navigation update is computed with the location estimate and the location error estimate. 1. A computer implemented method of validating an output from a global navigation satellite system (GNSS) , the method comprising:receiving at a GNSS receiver including a fusion system an output from at least one satellite in the GNSS, the fusion system comprising one or more location sensors; computing a location estimate and a location error estimate; computing a navigation update with the fusion system based on sensor measurements from the one or more location sensors, wherein the navigation update includes a sensor location estimate and a sensor location error estimate;determining if one or more GNSS filters should be applied based at least on the location estimate, the sensor location estimate, and the sensor location error estimate; when the one or more GNSS filters should be applied, applying the one or more GNSS filters by adjusting or rejecting one or more of the location estimate and the location error estimate and computing a new navigation update with the fusion system based on the adjusting or rejecting of the one or more of ...

Navigation Enhancement Method and System

The present application provides a navigation augmentation method and system, the method includes: broadcasting, by satellites of a Low Earth Orbit (LEO) constellation, navigation direct signals and navigation augmentation information; performing, by a user receiver, precise positioning, speed measurement and timing according to the navigation direct signals of navigation satellites, the navigation direct signals of the LEO satellites and the navigation augmentation information broadcasted by the LEO satellites. 1. A navigation augmentation method , comprising:Broadcasting, by Low Earth Orbit LEO satellites, navigation direct signals navigation augmentation information and precise orbits and clock biases of the Low Earth Orbit satellites;performing precise positioning, speed measurement and timing by a user receiver according to navigation direct signals of navigation satellites, and the navigation direct signals of the LEO satellites, the navigation augmentation information and the precise orbits and clock biases of the Low Earth Orbit satellites broadcasted by the LEO satellites.2. The method as claimed in claim 1 , wherein a LEO constellation comprises multiple LEO satellites distributed on multiple orbital planes claim 1 , and the multiple LEO satellites broadcast navigation direct signals based on high-precision time-frequency references through specific frequency bands;the navigation augmentation information comprises at least one of the following: precise orbits and clock biases of navigation satellites of global navigation satellite system GNSS, phase bias correction number of the navigation satellites, phase bias correction number of the LEO satellites, and ionospheric model parameter information.3. The method as claimed in claim 1 , wherein the navigation satellites comprise: at least one of US Global Positioning System GPS claim 1 , China Beidou claim 1 , EU Galileo claim 1 , and Russian Global Navigation Satellite System GLONASS satellite navigation ...

Devices, Systems and Methods for Digitally Transporting Signals in GNSS Repeater Systems Using CPRI

Disclosed are devices, systems, apparatuses, methods, products, and other implementations of GNSS repeater systems and methods for improving phase and frequency alignment of RF signals transported through fiber optic communication channels. Acquired RF signals are processed at a remote outdoor unit, where they are digitized, formatted into a CPRI frame, and timestamped. The timestamped CPRI frame is then transported over a fiber optic communication channel to an indoor head end unit. The indoor head end unit extracts timestamp and digitized RF signal from the CPRI frame. The timestamp is then used to synchronize a base transceiver station (BTS) and a precision time protocol (PTP) grand master with the remote outdoor unit. 1. A global navigation satellite system (GNSS) repeater system for improving phase and frequency alignment of radio frequency (RF) signals transported through fiber optic communication channels , the GNSS repeater system comprising:an RF antenna for acquiring an RF signal and relaying the acquired RF signal to a remote outdoor unit, wherein the RF signal comprises a global positioning system (GPS) signal; the signal processor is configured to pre-condition the acquired RF signal received from the RF antenna,', 'the GNSS receiver is configured to process the pre-conditioned RF signal and output a GPS-disciplined clock signal,', 'the multiple-output clock synthesizer is configured to process the GPS-disciplined clock signal and generate a system clock signal,', 'the SDR is configured to digitize the pre-conditioned RF signal into in-phase and quadrature (I/Q) antenna data,', 'the FPGA is configured to process the I/Q antenna data into a digital signal formatted into a common public radio interface (CPRI) frame, generate a timestamp based on the system clock signal, and insert the timestamp into a proprietary field of the CPRI frame, and', 'the first SFP port is configured to convert the digital signal comprising the formatted CPRI frame into an ...

INDOOR LOCALIZATION USING ANALOG OFF-AIR ACCESS UNITS

A system for indoor localization using GPS signals in a Distributed Antenna System includes a plurality of Off-Air Access Units (OAAUs). Each of the plurality of OAAUs is operable to receive a GPS signal from at least one of a plurality of GPS satellites and operable to route signals optically to one or more HUBs. The system also includes a plurality of remote units (RUs) located at a Remote location. The plurality of RUs are operable to receive signals from a plurality of local HUBs. The system further includes an algorithm to delay each individual GPS satellite signal to provide indoor localization at each of the plurality of RUs. 1. A system for indoor localization using GPS signals in a Distributed Antenna System , the system comprising:a plurality of Off-Air Access Units (OAAUs), each of the plurality of OAAUs operable to receive a GPS signal from at least one of a plurality of GPS satellites and operable to route signals optically to one or more local HUBs;a plurality of remote units (RUs) located at Remote locations, wherein the plurality of RUs are operable to receive signals from one or more of the plurality of local HUBs; anda delay unit operable to delay GPS satellite signal to provide indoor localization at each of the plurality of RUs.2. The system of wherein the delay unit includes an algorithm to delay each individual GPS satellite signal.3. The system of wherein the plurality of local HUBs are coupled via at least one of a Ethernet cable claim 1 , Optical Fiber claim 1 , or Wireless Link.4. The system of wherein the plurality of OAAUs are connected to a plurality of HUBs via at least one of Ethernet cable claim 1 , Optical Fiber claim 1 , RF Cable or Wireless Link.5. The system of wherein the OAAUs are Multiple Input Off-Air Access Units.6. A system for indoor localization using GPS signals in a Distributed Antenna System claim 1 , the system comprising: being connected together via a daisy chain configuration;', 'receiving a GPS signal from at least ...

REAL-TIME LOCATING SYSTEM USING GPS TIME DIFFERENCE OF ARRIVAL WITH DIGITAL OFF-AIR ACCESS UNITS AND REMOTE UNITS

A real-time locating system (RTLS) for localization using satellite navigation signals in a Distributed Antenna System includes Off-Air Access Units (OAAUs), each being operable to receive an individual satellite navigation signal from a satellite and to route signals optically to a digital access unit (DAU). Remote digital remote units (DRUs) are located at Remote locations and are operable to receive signals the DAUs. Each individual satellite navigation signal can be appropriately delayed (in a manner that accounts for a DRU's location). For each antenna, a separation distance between a mobile station and a DRU can be estimated based on a signal receipt time at the station. In combination, these distances can be used to estimate the mobile station's precise indoor position. 1. (canceled)2. A method for localization comprising:receiving, by an Off-Air Access Unit (OAAU), a first satellite navigation signal and a second satellite navigation signal; androuting, by the OAAU, the first satellite navigation signal and the second satellite navigation signal to a Digital Remote Unit (DRU) at a location remote from the OAAU;receiving, by the DRU, the first satellite navigation signal and the second satellite navigation signal from the OAAU;transmitting the first satellite navigation signal to a first antenna during a first time frame; andtransmitting the second satellite navigation signal to a second antenna during a second time frame, wherein the second time frame is after the first time frame.3. The method of further comprising:receiving, by a digital access unit (DAU), the first satellite navigation signal and the second satellite navigation signal from the OAAU; andtransmitting the first satellite navigation signal and the second satellite navigation signal from the OAAU to the DRU.4. The method of wherein the OAAU is connected to the DAU via an Ethernet cable claim 3 , Optical Fiber claim 3 , or Wireless Link.5. The method of further comprising a plurality of DAUs ...

UTILIZING MOBILE WIRELESS ACCESS GATEWAYS FOR LOCATION AND CONTEXT PURPOSES

Methods, program products, and systems of using a mobile WAP for location and context purposes are disclosed. In general, in one aspect, a server can estimate an effective location of a wireless access gateway using harvested data. The server can harvest location data from multiple mobile devices. The harvested data can include a location of each mobile device and an identifier of a wireless access gateway that is located within a communication range of the mobile device. In some implementations, the server can identify a mobile wireless access gateway based on a distance comparison. Data indicating the mobility of a wireless access gateway can be used by a mobile device to initiate one or more actions, including managing power of the mobile device, modifying entrance and exit conditions of virtual fences and determining a context of the mobile device. 117-. (canceled)18. A method comprising:determining whether a first wireless access gateway detected by a mobile device is mobile;determining whether the mobile device is in communication range of the first wireless access gateway for at least a threshold amount of time;upon determining, by the mobile device, that the first wireless access gateway is mobile and that the mobile device is in communication range of the first wireless access gateway for at least the threshold amount of time, scanning for wireless access gateways at a first scan rate;determining whether a second wireless access gateway detected by the mobile device is mobile;determining whether the mobile device is in communication range of the second wireless access gateway for at least the threshold amount of time; andupon determining, by the mobile device, that the second wireless access gateway is not mobile and that the mobile device is in communication range of the second wireless access gateway for at least the threshold amount of time, scanning for wireless access gateways at a second scan rate that is different from the first scan rate.19. The ...

LOW-ENERGY CONSUMPTION LOCATION OF MOVABLE OBJECTS

Low-energy consumption techniques for locating a movable object using a global satellite navigation system (GNSS) are provided. A mobile station attached to or included in a movable object can communicate bidirectionally with a fixed base station to determine a location of the movable object. The mobile station may communicate an estimated position to the base station and receive from the base station a set of GNSS satellites that are visible to the mobile station. The mobile station can acquire satellite timing information from GNSS signals from the set of satellites and communicate minimally-processed satellite timing information to the base station. The base station can determine the position of the mobile station and communicate the position back to the mobile station. By offloading much of the processing to the base station, energy consumption of the mobile station is reduced. 1. A system for locating a movable object , the system comprising: a radio frequency (RF) mobile communication system configured to operate an RF link having an RF link frequency in an RF band that is not licensed for cellular communications;', 'a mobile global navigation satellite system (GNSS) receiver; and', 'a dead reckoning system including a non-GNSS sensor, the dead reckoning system configured to use measurements from the non-GNSS sensor to provide an estimated position for the mobile station; and, 'a mobile station configured to be associated with the movable object, the mobile station comprising a base RF communication system configured to bidirectionally communicate with the mobile communication system over the RF link;', 'a base GNSS receiver; and', 'a hardware processor,, 'a base station located at a fixed position, the base station comprising receive, from the mobile station over the RF link, the estimated position of the mobile station determined by the dead reckoning system:', 'determine satellite acquisition information that includes a set of GNSS satellites predicted to ...

CELL ORGANIZATION AND TRANSMISSION SCHEMES IN A WIDE AREA POSITIONING SYSTEM (WAPS)

A position location system comprises transmitters that broadcast positioning signals. Each broadcasted positioning signal comprises a pseudorandom ranging signal. The position location system includes a remote receiver that acquires and measures the time of arrival of the positioning signals received at the remote receiver. During an interval of time, at least two positioning signals are transmitted concurrently by the transmitters and received concurrently at the remote receiver. The two positioning signals have carrier frequencies offset from one another by an offset that is less than approximately twenty-five percent of the bandwidth of each positioning signal of the two positioning signals. Cross-interference between the positioning signals is reduced by tuning the remote receiver to a frequency of a selected signal of the two positioning signals and correlating the selected signal with a reference pseudorandom ranging signal matched to a transmitted pseudorandom ranging signal of the selected signal. 1. A method for transmitting positioning signals from a network of transmitters , the method comprising:transmitting, from each respective transmitter in a first set of n transmitters, a respective positioning signal using a respective carrier frequency that is the sum of a base frequency plus a respective offset frequency,wherein each respective offset frequency used for each respective transmitter is a product of a frequency multiplied by a respective fraction that is greater than or equal to 0/n and less than or equal to (n−1)/n,wherein the offset frequencies used for a first pair of adjacent transmitters that includes a first transmitter and a second transmitter from the first set of n transmitters differ by more than the product of the frequency multiplied by 1/n.2. The method of claim 1 , wherein the offset frequencies used for the first and second transmitters differ by less than the product of the frequency multiplied by (n−1)/n.3. The method of claim 1 , ...

INDOOR LOCALIZATION USING DIGITAL OFF-AIR ACCESS UNITS

A system for indoor localization using satellite navigation signals in a Distributed Antenna System includes a plurality of Off-Air Access Units (OAAUs). Each of the plurality of OAAUs is operable to receive an individual satellite navigation signal from at least one of a plurality of satellites and operable to route signals optically to one or more DAUs. The system also includes a plurality of remote DRUs located at a Remote location. The plurality of remote DRUs are operable to receive signals from a plurality of the one or more DAUs. The system further includes an algorithm to delay each individual satellite navigation signal for providing indoor localization at each of the plurality of DRUs. 1. (canceled)2. A system for indoor localization using navigation signals in a Distributed Antenna System , the system comprising:a plurality of Digital Access Units (DAUs);an Off-Air Access Unit (OAAU) operable to receive satellite navigation signals transmitted by a plurality of navigation satellites, and operable to route the satellite navigation signals to one of the plurality of DAUs; anda plurality of remote Digital Remote Units (DRUs) located at a Remote location, wherein each of the plurality of remote DRUs is operable to receive the satellite navigation signals from one of the plurality of DAUs and operable to transmit delayed satellite navigation signals to a mobile device for providing the indoor localization using the plurality of remote DRUs.3. The system of wherein each of the plurality of remote DRUs is operable to:delay the received satellite navigation signals and transmit the delayed satellite navigation signals to the mobile device.4. The system of wherein: 'convert the satellite navigation signals to digital satellite navigation signals and route the digital satellite navigation signals through an optical cable to the one of the plurality of DAUs;', 'the OAAU is configured to time multiplex the digital satellite navigation signals; and', 'route the time ...

TERMINAL POSITION MEASURING DEVICE AND TERMINAL POSITION MEASURING METHOD

Disclosed is a technology for increasing a positioning success rate and reducing a positioning error with high reliability by proposing an improved positioning scheme based on virtual satellites capable of improving DOP and removing an error in a satellite measurement value when a location of a terminal in an inadequate environment such as downtown/indoors near a window is measured. 1. An apparatus for positioning a terminal , the apparatus comprising:a virtual satellite configuration unit configured to configure virtual satellite for a specific terminal using a Base Station (BS) coordinate of a serving BS related to the specific terminal; anda positioning unit configured to perform a positioning procedure of estimating a location of the specific terminal, based on pseudo distance measurement value of actual satellite measured by the specific terminal and distance measurement value of virtual satellite generated for the virtual satellite.2. The apparatus of claim 1 , wherein the virtual satellite configuration unit is configured to:configure virtual satellite using a coordinate value of the BS coordinate for each directional axis of a three-dimensional coordinate space,wherein an origin of the three-dimensional coordinate space an initial location coordinate of the specific terminal or a location coordinate estimated in a previous positioning procedure.3. The apparatus of claim 1 , wherein the positioning unit is configured to:calculate and generate the distance measurement value of the virtual satellite, based on an initial location coordinate of the specific terminal or a location coordinate estimated in a previous positioning procedure, and coordinate of the configured virtual satellite.4. The apparatus of claim 1 , wherein the positioning unit is configured to:estimate a location coordinate of the specific terminal using a predefined weight matrix and at least one formula matrix configured based on a pseudo measurement value of the actual satellite and a ...

SYSTEM AND METHOD FOR POSITIONING USING HYBRID SPECTRAL COMPRESSION AND CROSS CORRELATION SIGNAL PROCESSING

The present invention relates to a system and method for positioning and navigation using hybrid spectral compression and cross correlation signal processing of signals of opportunity, which may include Global Navigation Satellite System (GNSS) as well as other wideband energy emissions in GNSS obstructed environments. Examples of these signals of opportunity include but are not limited to GPS, GLONASS, cellular Code Division Multiple Access (CDMA) communications signals, and 802.11 Wi-Fi. Combining spectral compression with spread spectrum cross correlation enables extraction of code and carrier observables without the need to implement the tracking loops (e.g. Costas tracking loop) commonly used in conventional GNSS receivers. For applications where dynamics and transmission medium may make it difficult to continuously track carrier phase, the hybrid approach of the present invention has significant utility. 1. A system for providing physical state information comprisingat least one emitter that emits a spread spectrum RF emission within a transmission medium; a spectral compressor configured to process the intercepted spread spectrum RF emission using spectral compression utilizing a non-linear operation to produce at set of observables fort the at least one emitter suitable for physical state estimation;', 'wherein the non-linear operation comprises at least two or more delay and multiply operations;, 'at least one interceptor that receives the emission propagated through the transmission medium from the at least one emitter comprisinga physical state estimator configured to determine at least one member of the relative physical state between the interceptor and the at least one emitter.2. A method for providing physical state information comprising: processing the emission using spectral compression utilizing a non-linear operation to produce a set of observables associated the emitter, wherein the non-linear operation comprises at least two delay and multiple ...

POSITIONING OF A WIRELESS DEVICE

Techniques for supporting positioning are described. In an example implementation, a method for use in determining a position of a mobile station is provided, wherein a network-based computing device receives a message from a mobile station, the message indicating an identity of a transmitter device from which the mobile device has received at least one signal; and identifies at least one civil location estimate based at least in part on the message; the at least one civil location estimate representing an estimated location of the mobile device. 1. A method for use in determining a position of a mobile station , the method comprising , at a network-based computing device:receiving a message from a mobile station, the message indicating an identity of a transmitter device from which the mobile device has received at least one signal; andidentifying at least one civil location estimate based at least in part on the message; the at least one civil location estimate representing an estimated location of the mobile device.2. The method of claim 1 , wherein the message further indicates at least one signal-based measurement based claim 1 , at least in part claim 1 , on the at least one signal.3. The method of claim 1 , and further comprising: at the network-based computing device claim 1 , determining an estimated location of the transmitter device based claim 1 , at least in part on the identity of the transmitter device.4. The method of claim 1 , wherein identifying the at least one civil location estimate comprises: identifying the at least one civil location estimate based at least in part on a database comprising a plurality of civil location estimates representing estimated locations of a corresponding plurality of transmitter device identifiers.5. The method of claim 1 , wherein identifying the at least one civil location estimate comprises identifying the at least one civil location estimate based claim 1 , at least in part claim 1 , on: (a) an estimated location ...

CELL ORGANIZATION AND TRANSMISSION SCHEMES IN A WIDE AREA POSITIONING SYSTEM

A position location system comprises transmitters that broadcast positioning signals. Each broadcasted positioning signal comprises a pseudorandom ranging signal. The position location system includes a remote receiver that acquires and measures the time of arrival of the positioning signals received at the remote receiver. During an interval of time, at least two positioning signals are transmitted concurrently by the transmitters and received concurrently at the remote receiver. The two positioning signals have carrier frequencies offset from one another by an offset that is less than approximately twenty-five percent of the bandwidth of each positioning signal of the two positioning signals. Cross-interference between the positioning signals is reduced by tuning the remote receiver to a frequency of a selected signal of the two positioning signals and correlating the selected signal with a reference pseudorandom ranging signal matched to a transmitted pseudorandom ranging signal of the selected signal. 1broadcasting from a plurality of transmitters of a transmitter network a plurality of positioning signals comprising pseudorandom ranging signals, wherein during an interval of time at least two positioning signals are transmitted concurrently, each by a different member of the plurality of transmitters, wherein the at least two positioning signals comprise a first signal transmitted from a first member and a second signal transmitted from a second member, wherein the at least two positioning signals have different carrier frequencies, the carrier frequencies offset from one another by an amount that is at least one of equal to and less than twenty-five percent of the bandwidth of each positioning signal of the at least two positioning signals;receiving in a remote receiver the at least two positioning signals; andreducing the cross-interference of the second signal upon the first by tuning the remote receiver to a frequency of the first signal and correlating the ...

System and Method for Providing Accurate Position Location Information to Military Forces in a Disadvantaged Signal Environment

A system for determining a location in a disadvantaged signal environment includes three aerial vehicles hovering at high altitude and spaced apart to form a triangle, and a mother aerial vehicle positioned a distance away and at a lower altitude. The mother aerial vehicle acquires and transmits coarse geolocation information, using a pulse compression, high-power X Band radar and directional antenna, to each of the three aerial vehicles to direct them to coarse geo-positions above designated respective ground locations. One of the three aerial vehicles has a synthetic aperture radar for producing a terrain strip-map that is mensurated against a map database to provide fine position adjustments for each of the three aerial vehicles, which are also also configured to transmit a respective signal coded with its latitude, longitude, and altitude, for a computing device to perform time difference of arrival measurements of the signals to determine its location. 1positioning first, second, and third aerial vehicles at a first altitude and being spaced apart to form a triangle;synchronizing said first, second, and third aerial vehicles with each other;positioning a mother aerial vehicle a distance away from said first, second, and third aerial vehicles at a second altitude, and transmitting coarse geolocation information by said mother aerial vehicle to each of said first, second, and third aerial vehicles for directing said first, second, and third aerial vehicles to coarse positions above a respective ground location;produce a terrain strip-map by one or more of said first, second, and third aerial vehicles and mensurating said terrain strip-map against a map database for providing fine position adjustments to each of said first, second, and third aerial vehicles;transmitting a respective coded signal by each of said first, second, and third aerial vehicles; andcomparing time difference of arrival (TDOA) measurements of said respective signals for determining a location ...

VEHICLE POSITIONING METHOD, APPARATUS AND DEVICE

Provided are a vehicle positioning method, an apparatus and a device. The method includes: sending an auxiliary positioning request to an auxiliary positioning device within a preset distance range; receiving an auxiliary positioning message returned by the auxiliary positioning device with respect to the auxiliary positioning request, where the auxiliary positioning message carries location information of the auxiliary positioning device; and determining a current location of a current vehicle according to the location information of the auxiliary positioning device and distance information between the current vehicle and the auxiliary positioning device. The method of the present disclosure can implement vehicle positioning without a satellite positioning signal. The vehicle positioning can be performed when the vehicle is blocked by an obstacle such as a tunnel, a building and the satellite positioning signal cannot be received, improving the accuracy of the vehicle positioning. 1. A vehicle positioning method , comprising:sending an auxiliary positioning request to an auxiliary positioning device within a preset distance range;receiving an auxiliary positioning message returned by the auxiliary positioning device with respect to the auxiliary positioning request, wherein the auxiliary positioning message carries location information of the auxiliary positioning device; anddetermining a current location of a current vehicle according to the location information of the auxiliary positioning device and distance information between the current vehicle and the auxiliary positioning device.2. The method according to claim 1 , wherein the method further comprises:correcting the determined current location according to pose information of the current vehicle.3. The method according to claim 1 , wherein before the sending an auxiliary positioning request to an auxiliary positioning device within a preset distance range claim 1 , the method further comprises:determining ...

Broadcast Transmission of Information Indicative of a Pseudorange Correction

A method comprising receiving, by an apparatus, global-positioning-system data from a plurality of global-positioning-system satellites, determining a measured satellite pseudorange for each global-positioning-system satellite of the plurality of global-positioning-system satellites based, at least in part, on the global-positioning-system data, receiving, by the apparatus, of non-global-positioning-system data from at least one sensor, determining an apparatus position of the apparatus based, at least in part, on the non-global-positioning-system data, the determination of the apparatus position being absent consideration of any global-positioning-system data, determining at least one pseudorange correction associated with at least one global-positioning-system satellite of the plurality of global-positioning-system satellites based, at least in part, on the measured satellite pseudorange and the apparatus position, and causing broadcast transmission of information indicative of the pseudorange correction is disclosed. 1. An apparatus , comprising:at least one processor;at least one memory including computer program code, the memory and the computer program code configured to, working with the processor, cause the apparatus to perform at least the following:receipt, by the apparatus, of global-positioning-system data from a plurality of global-positioning-system satellites;determination of a measured satellite pseudorange for each global-positioning-system satellite of the plurality of global-positioning-system satellites based, at least in part, on the global-positioning-system data;receipt, by the apparatus, of non-global-positioning-system data from at least one sensor;determination of an apparatus position of the apparatus based, at least in part, on the non-global-positioning-system data, the determination of the apparatus position being absent consideration of any global-positioning-system data;determination of at least one pseudorange correction associated ...

INDOOR TRILATERALIZATION USING DIGITAL OFF-AIR ACCESS UNITS

A system for indoor localization using satellite navigation signals in a Distributed Antenna System. The system includes a plurality of Off-Air Access Units (OAAUs), each operable to receive an individual satellite navigation signal from at least one of a plurality of satellite navigation systems (e.g., GPS, GLONASS, Galileo, QZSS, or BeiDou) and operable to route signals optically to one or more DAUs. The system further includes a plurality of remote DRUs located at a Remote location that are operable to receive signals from a plurality of local DAUs. Moreover, the system includes an algorithm to delay each individual satellite navigation signal for providing indoor localization at each of the plurality of DRUs. 1. A system for indoor localization using satellite navigation signals in a Distributed Antenna System , the system comprising:a plurality of Off-Air Access Units (OAAUs), each having at least one directional antenna and each being operable to receive at least one of a plurality of satellite navigation signals from a plurality of satellites;one or more Digital Access Units (DAUs), wherein the plurality of OAAUs are communicatively coupled to at least one of the one or more DAUs; and receive one or more of the plurality of satellite navigation signals from the one or more DAUs;', 'delay the one or more of the plurality of satellite navigation signals based on a positional offset for the individual DRU; and', 'broadcast, using an antenna of the individual DRU, the delayed one or more of the plurality of satellite navigation signals., 'a plurality of Digital Remote Units (DRUs) located at a remote location, wherein each individual DRU of the plurality of DRUs is operable to2. The system of claim 1 , further comprising:a feedback system communicatively coupled to a first DRU of the plurality of DRUs; anda GPS receiver at the remote location communicatively coupled to the feedback system, wherein the GPS receiver transmits a measured GPS position to the feedback ...

Terrestrial Based Positioning Systems and Methods

A terrestrial based positioning system includes a plurality of location anchors configured to transmit and receive ultra-wide band (“UWB”) signals. In another aspect, a location tag configured to transmit and receive UWB signals uses signals transmitted by location anchors to determine its current position. In some implementations, a location tag may use Global Positioning System (“GPS”) signals or a combination of UWB and GPS signals to determine a current location. The location anchors are organized into zones used by the locations tags to determine a current position based in UWB signals. In some implementations, the locations anchors automatically create the necessary zones. Location anchors may also automatically determine the position of other location anchors. In yet other implementations, the location anchors relay data transmitted by a location tag. In addition, a location anchor may transmit GPS signals that can be used by standard GPS receivers. 1. A terrestrial based positioning system comprising:a first location anchor;a second location anchor; anda third location anchor,wherein:the first location anchor, the second location anchor, and the third location anchor are configured to receive and transmit ultra-wide band (UWB) signals, and determine a position of the second location anchor based on a first signal received from the second location anchor,', 'determine a position of the third location anchor based on a second signal received from the third location anchor,', 'create a first zone that includes the first location anchor, the second location anchor, and the third location anchor, and', 'broadcast information associated with the first zone., 'the first location anchor is further configured to2. The terrestrial based positioning system of wherein:the first location anchor, the second location anchor, and the third location anchor each have a unique identification (ID); and the unique ID of the first location anchor,', 'the unique ID of the second ...

RF PNT SYSTEM WITH EMBEDDED MESSAGING AND RELATED METHODS

An RF PNT system may include LORAN stations. Each LORAN station may include a LORAN antenna, and a LORAN transmitter coupled to the LORAN antenna and configured to transmit a series of LORAN PNT RF pulses having a time spacing between adjacent LORAN PNT RF pulses. One or more of the LORAN stations may include a message embedding generator coupled to the LORAN transmitter and configured to generate message RF bursts based upon an input message, and with each message RF burst being in the time spacing between respective adjacent LORAN PNT RF pulses. 1. A radio frequency (RF) Precision Navigation and Timing (PNT) system comprising: a LORAN antenna, and', 'a LORAN transmitter coupled to said LORAN antenna and configured to transmit a series of LORAN PNT RF pulses having a time spacing between adjacent LORAN PNT RF pulses;, 'a plurality of LOng RAnge Navigation (LORAN) stations each LORAN station comprising'}at least one of said plurality of LORAN stations comprising a message embedding generator coupled to said LORAN transmitter and configured to generate a plurality of message RF bursts based upon an input message, and with each message RF burst being in the time spacing between respective adjacent LORAN PNT RF pulses.2. The RF PNT system of wherein said message embedding generator is configured to generate the plurality of message RF bursts to be uncorrelated from the series of LORAN PNT RF pulses.3. The RF PNT system of wherein each LORAN transmitter is configured to transmit eight LORAN PNT RF pulses in a Group Repetition Interval (GRI); and wherein said message embedding generator is configured to generate the plurality of message RF bursts using a fixed frame arrangement based upon the GRI.4. The RF PNT system of wherein each LORAN transmitter is configured to transmit eight LORAN PNT RF pulses in a Group Repetition Interval (GRI); and wherein said message embedding generator is configured to generate the plurality of message RF bursts using an adaptive frame ...

METROLOGY INSTRUMENT SYSTEM AND METHOD OF OPERATING

A system and method is provided for determining the geographic location of a three-dimensional metrology instrument. The three-dimensional metrology instrument includes a geographic location determination circuit, such as a GPS. The geographic location determination circuit allows the metrology instrument to synchronize the instruments internal clock to allow cooperative measurements with multiple metrology instruments. The geographic location determination circuit further allows for automatic localization of configuration parameters of the metrology instrument. The geographic location determination circuit still further allows for the recording of location when predetermined environmental events occur. 1. A system for measuring three-dimensional (3D) coordinates of an object comprising:a first metrology instrument for measuring a first set of 3D coordinates of at least one point on a surface of the object in a local coordinate system frame of reference, the first metrology instrument having a first processor and a first system clock, wherein the first processor is configured in operation to synchronize the first system clock with a signal from an external source, wherein the signal includes at least a reference time data;a second metrology instrument for measuring a second set of 3D coordinates of at least one point on the first metrology instrument in a second coordinate system frame of reference, the second metrology instrument having a second processor and a second system clock, wherein the second processor is configured in operation to synchronize the second system clock with the signal from the external source; anda controller operably coupled for communication to the first metrology instrument and the second metrology instrument, the controller including a processor responsive to executable computer instructions for determining a third set of 3D coordinates in the second coordinate system frame of reference of the at least one point on the object based at ...

USING DME FOR TERRESTRIAL TIME TRANSFER

Techniques for allowing a remote or fielded receiver to derive a precise time reference (such as Coordinated Universal Time (UTC)) when the fielded receiver is not able to derive time directly from received GPS signals. One or more fixed DME reference stations are located within range of DME beacon signals from an existing DME beacon station, the DME reference stations also having the capability to receive GPS signals and derive UTC therefrom. Based on the known distance between the DME reference station and the DME beacon station, the DME reference station can determine the time of transmission from the DME beacon station of each DME beacon signal. This time tag information is then provided to the fielded receiver, which is also within range of DME beacon signals from the DME beacon station. With this time tag information, the fielded receiver can correlate that with the received DME beacon signals and derive UTC to within an acceptably small margin. 1. A method for deriving a precise time reference when GNSS signals are not directly available , comprising:determining that GNSS signals are not directly available;receiving a plurality of DME beacon signals from a DME beacon station;receiving precise timing information from a DME reference station, the precise timing information including time tags for each DME beacon signal received by the DME reference station from the DME beacon station, the time tag including a precise time reference for the time that the DME beacon station sent the respective DME beacon signal; andderiving a precise time reference from the DME beacon signals received from DME beacon station and the time tags received from the DME reference station corresponding to the received DME beacon signals.2. A method as defined in claim 1 , wherein the deriving does not require any knowledge of the position of the DME reference station or the distance to the DME reference station.3. A method as defined in claim 1 , wherein multiple DME beacon signals are ...

INDOOR LOCALIZATION USING DIGITAL OFF-AIR ACCESS UNITS

A system for indoor localization using satellite navigation signals in a Distributed Antenna System includes a plurality of Off-Air Access Units (OAAUs). Each of the plurality of OAAUs is operable to receive an individual satellite navigation signal from at least one of a plurality of satellites and operable to route signals optically to one or more DAUs. The system also includes a plurality of remote DRUs located at a Remote location. The plurality of remote DRUs are operable to receive signals from a plurality of the one or more DAUs. The system further includes an algorithm to delay each individual satellite navigation signal for providing indoor localization at each of the plurality of DRUs. 1. (canceled)2. A method for indoor localization using satellite navigation signals , the method comprising:receiving, at an off-air access unit (OAAU), a Radio Frequency (RF) satellite navigation signal;converting, at the OAAU, the RF satellite navigation signal to a digital satellite navigation signal;transmitting the digital satellite navigation signal through an optical cable to a digital remote unit (DRU);delaying, at the DRU, the digital satellite navigation signal;converting, at the DRU, the digital satellite navigation signal to a delayed RF satellite navigation signal; andtransmitting, at the DRU, the delayed RF satellite navigation signal for providing indoor localization within range of the DRU.3. The method of wherein the satellite navigation signal comprises at least one of a GPS claim 2 , GLONASS claim 2 , Galileo claim 2 , QZSS claim 2 , or BeiDou signal.4. The method of wherein the DRU is coupled to one or more of a plurality if DRUs via at least one of a Ethernet cable claim 2 , Optical Fiber claim 2 , or Wireless Link.5. The method of wherein the OAAU is coupled to one or more of a plurality of OAAUs via at least one of Ethernet cable claim 2 , Optical Fiber claim 2 , or Wireless Link.6. The method of wherein delaying the digital satellite navigation signal ...

System and method for accelerating network selection by a wireless user equipment (UE) device using satellite based positioning system

A system and method for accelerating network selection by a wireless user equipment (UE) device (102) without having to perform a full band scan (FBS). In one exemplary embodiment, the wireless UE device (102) is operable to determine its location using a satellite-based positioning system such as GPS. Based on determining (1004) that the wireless UE device is in a particular area defined by a set of corners, a subset of appropriate frequency data is determined for selective scanning (1006) by the wireless UE device (102). Using the subset of appropriate frequency data, a selective scanning (1006) is performed for locating a network by the wireless UE device (102).

一种用于半封闭环境下的卫星信号转发系统

本发明提出了一种用于半封闭环境下的卫星信号转发系统，与飞机的控制系统连接，用于对库房内的飞机进行基于抗干扰的二次转发技术的卫星信号转发，所述卫星信号转发系统包括库外接收天线、信号处理机、库内发射天线、转发天线机；所述库外接收天线设置在库房外，用于接收卫星传输的卫星信号；所述信号处理机设置在库房内，且信号处理机的输入端通过射频电缆与所述库外接收天线连接；所述信号处理机的输出端依次连接库内发射天线、转发天线机和飞机的控制系统；所述转发天线机和信号处理机上设置有用于对输入的卫星信号进行频偏设置的频偏模块；且所述转发天线机上的频偏模块与信号处理机上的频偏模块之间频偏匹配。

一种基于gnss精密授时的伪卫星系统及方法

本发明属于测绘与导航领域，公开了一种基于GNSS精密授时的伪卫星系统及方法，利用同源晶振驱动GNSS接收机和伪卫星信号发射器，并且利用附有坐标约束的精密单点定位模型实时求解接收机本地时钟的钟差，再通过标定硬件延迟的方法消除信号发射器与GNSS接收机之间的硬件延迟；求解得到的本地时钟钟差通过电文的形式播发给用户，实现本地时钟与GNSS系统时的数学同步。本发明可实现单个伪卫星系统与GNSS系统精密时间同步，无需构建有线或无线的时间同步链路，节约了布设成本和硬件复杂度。本发明所述的伪卫星系统更便于与GNSS信号实现联合定位解算，提高导航定位的可用性和可靠性。

Positioning system and method

对一个位于标准的地面定位信号不能操作的场所下的物体进行定位的定位系统。第一实施例使用了GPS接收器和时钟恢复单元，计算机接收定位信息和准确的时间信息。计算机计算至少四个模拟卫星的新的轨道数据，模拟卫星是装在内部或屏蔽空间的天线，作用是向接收器发送模拟卫星数据。在第二个实施例中，不使用GPS接收器，而是将模拟卫星的位置提供给计算机。同时也提供精确的时钟信号。计算机计算每个模拟卫星的轨道数据并向模拟卫星发送时间信号和暂时数据。根据连接电缆长度不同而导致的传播的时间滞后，对每个模拟卫星的时间信号进行延时。

Pseudolite based navigation system having self status-monitoring and performance-maintaining function

본 발명은 항법 메시지에 통해 자체 상태감시 및 성능유지 기능을 수행할 수 있는 의사위성 기반의 항법시스템에 관한 것으로, 복수의 종속 의사위성의 사용자 바이어스를 측정하여 항법 메시지를 통해 전송하는 기준 의사위성; 및 상기 기준 의사위성으로부터 사용자 바이어스 측정값을 수신하고, 기준 의사위성의 신호를 기반으로 시각동기를 수행하는 복수의 종속 의사위성으로 구성되어, 상기 기준 의사위성으로부터 이격된 말단의 종속 의사위성은 상기 기준 의사위성 및 복수의 종속 의사위성이 전송한 항법 메시지를 모니터링하여 사용자 바이어스 측정값이 수신되는지 확인하고, 상기 기준 의사위성으로부터 사용자 바이어스 측정값이 수신되지 않아 항법서비스 준비 완료 상태로 진입하지 못하면, 후보 기준 의사위성인 복수의 종속 의사위성 중에서 링크 품질이 우수한 종속 의사위성으로 기준 송신기 변경 요청 메시지를 전송하여 새로운 기준 의사위성을 선택한 후 해당 기준 의사위성으로부터 사용자 바이어스 측정값을 수신한다. The present invention relates to a pseudo-satellite-based navigation system capable of performing self-monitoring and performance maintenance via a navigation message, comprising: a reference pseudo-satellite for measuring a user bias of a plurality of dependent pseudolites and transmitting the measured user bias through a navigation message; And a plurality of dependent pseudolites for receiving a user bias measurement value from the reference pseudo-satellite and performing time synchronization based on a signal of the reference pseudo-satellite, wherein the dependent pseudo- If the user bias measurement value is not received from the reference pseudo-satellite and the navigation service preparation state is not received from the reference pseudo-satellite, the control unit monitors the navigation message transmitted by the reference pseudo-satellite and the plurality of dependent pseudo- A reference transmitter change request message is transmitted to a dependent pseudo-satellite having a good link quality among a plurality of dependent pseudo-satellites, which are candidate reference pseudolites, and a new reference pseudo-satellite is selected, and a user bias measurement value is received from the reference pseudo-satellite.

WIRELESS LOCAL MESSAGE TRANSMISSION SYSTEM AND METHOD FOR DETERMINING THE LOCATION OF THE NAVIGATION RECEIVER WITHIN WIRELESS LOCAL MESSAGE TRANSMISSION SYSTEM

1. Беспроводная система передачи локальных сообщений, имеющая по меньшей мере один передатчик и по меньшей мере один приемник, причем по меньшей мере один передатчик передает локальное сообщение по меньшей мере на один приемник,- причем по меньшей мере один приемник является навигационным приемником, выполненным для приема и обработки навигационных сообщений со спутников глобальной системы спутниковой навигации на заданной несущей частоте, причем каждый из спутников передает навигационные сообщения с индивидуальным для спутника PRN-кодом,- причем по меньшей мере один передатчик выполнен для передачи локального сообщения в сигнале локального сообщения на заданной несущей частоте с локальным PRN-кодом, который не используется спутником глобальной системы спутниковой навигации, и- причем по меньшей мере один приемник, кроме того, выполнен для приема локального PRN-кода и обработки сигнала локального сообщения.2. Беспроводная система передачи локальных сообщений по п. 1, причем сигнал локального сообщения является не непрерывно передаваемым импульсным сигналом.3. Беспроводная система передачи локальных сообщений по п. 1 или 2,- причем предусмотрен по меньшей мере один модуль базы данных, в котором отдельные локальные сообщения для каждого из локальных передатчиков (6) хранятся вместе с соответствующими идентификационными данными локального передатчика, и- причем каждый навигационный приемник (2) приспособлен для установления связи с базой данных для получения локального сообщения, связанного с локальным передатчиком (2), на основе идентификационных данных, полученных навигационным приемником (2) от локального � РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК G01S 19/11 (11) (13) 2014 112 229 A (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014112229/07, 01.09.2012 (71) Заявитель(и): АСТРИУМ ГМБХ (DE) Приоритет(ы): (30) Конвенционный приоритет: 01.09.2011 EP 11007102.4 (85) Дата начала рассмотрения заявки PCT на ...

Land-based transmitter position determination

In a local positioning system, a receiver is adapted for receiving signals from a land-based transmitter. The receiver includes an analog decorrelator for decorrelating the transmitted spread spectrum signals. A down converter connected with an antenna may be spaced away from other portions of the receiver. The down converter down converts received ranging signals and provides them to the remotely spaced receiver portions. A signal line connecting the down converter to the receiver may be operable to transmit any two or more of a reference signal provided to the down converter, the down converted intermediate frequency signals provided to the receiver, and power provided to the down converter. The receiver may be positioned adjacent to or as part of a land-based transmitter. By determining positions of two or more antennas, the location of the associated transmitter is determined.

Integrated position and direction system with radio communication for updating data

An integrated position and direction system is disclosed that includes a digital compass, a communication module, and a satellite positioning system having a receiver adapted to receive satellite position determining signals. Signals that are received from satellites are used to determine position of the integrated position and direction system. A method for updating data is disclosed in which the integrated position and direction system communicates with a remote site and sends a determined position to the remote site. A response is generated and is transmitted to the integrated position and direction system that includes data relating to features located near the determined position. The received data is used to generate a display that indicates the position and the orientation of the features relative to the integrated position and direction system.

Hardware for transmission of navigation signals, method of transmission of navigation signals and hardware for output of location data

FIELD: physics, navigation. SUBSTANCE: invention relates to navigation. Proposed system can output location data without deterioration in precision even inside the rooms with significant influence of attenuation at multipath propagation. Data output hardware (100) receives by reception antenna RX-ANT1 the locating signals from in-room transmitter (200) subjected to encoding with spectrum expansion with the help of various PRN-codes and transmitted via said antennas TX-ANT1 and TX-ANT2, respectively. Hardware (100) performs the search of PRN-codes of transmitted signals independently and in synchronism. In case one PRN-code is detected its synchronization circuit is used to detect another PRN-code of the other channel. On case detection is performed successfully in two channels, signal of one channel is selected to execute the location process. EFFECT: higher stability of signals reception. 14 cl, 22 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК G01S 19/11 (11) (13) 2 561 721 C2 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012153783/07, 11.05.2011 (24) Дата начала отсчета срока действия патента: 11.05.2011 (72) Автор(ы): ТОРИМОТО Хидеюки (JP), ОКАНО Казуки (JP) (73) Патентообладатель(и): ДжиЭнЭсЭс ТЕКНОЛОДЖИЗ ИНК. (JP) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 20.06.2014 Бюл. № 17 R U 13.05.2010 JP 2010-111337 (45) Опубликовано: 10.09.2015 Бюл. № 25 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 13.12.2012 2 5 6 1 7 2 1 (56) Список документов, цитированных в отчете о поиске: WO2004088349 A1, 14.10.2004. WO2009069700 A1, 04.06.2009. WO2007119645 A1, 25.10.2007. WO9929050 A1, 10.06.1999. RU2178953 C2, 27.01.2002. RU2112991 C1, 10.06.1998 JP 2011/060876 (11.05.2011) C 2 C 2 (86) Заявка PCT: (87) Публикация заявки PCT: R U 2 5 6 1 7 2 1 WO 2011/142394 (17.11.2011) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма ...

Platform relative navigation using range measurements

FIELD: navigation. SUBSTANCE: invention relates to a method for platform relative navigation of an object using range measurements. Said result is achieved by that four or more transmitters (T 1 -T 4 ) of positioning signals are located on and/or near a platform of a first object and a second object approaching platform comprises three or more receivers (A 1 -A 3 ) for receiving the positioning signals, wherein method comprises steps of: performing for each received positioning signal a range measurement between transmitter of positioning signal and receiver of positioning signal, and estimating relative position and relative attitude of a body frame of second object with regard to first object directly by processing range measurements with a state space estimation algorithm, implementing a model of system of first and second object. EFFECT: high accuracy of navigating an object. 15 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 606 240 C2 (51) МПК G01S 5/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014105501, 13.07.2012 (24) Дата начала отсчета срока действия патента: 13.07.2012 (72) Автор(ы): ВЕНДЕЛЬ Ян (DE) (73) Патентообладатель(и): АСТРИУМ ГМБХ (DE) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: US 3706096 A, 12.12.1872. RU Приоритет(ы): (30) Конвенционный приоритет: 15.07.2011 EP 11005801.3 (45) Опубликовано: 10.01.2017 Бюл. № 1 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 17.02.2014 (86) Заявка PCT: EP 2012/002953 (13.07.2012) (87) Публикация заявки PCT: 2 6 0 6 2 4 0 (43) Дата публикации заявки: 27.08.2015 Бюл. № 24 2339002 C1, 20.11.2008. RU 2241959 C1, 10.12.2004. RU 2225039 C1, 27.02.2004. US583513 A, 10.12.1996. US 5757316 A, 26.05.1998. R U 13.12.2016 2 6 0 6 2 4 0 R U Адрес для переписки: 105082, Москва, Спартаковский пер., д. 2, стр. 1, секция 1, этаж 3, "ЕВРОМАРКПАТ" (54) НАВИГАЦИЯ ОТНОСИТЕЛЬНО ПЛОЩАДКИ С ...

System and method for accelerating network selection by a wireless user equipment device using satellite based positioning system

System, methods and user equipment for accelerating network selection by a wireless user equipment (UE) device using a satellite-based positioning system

System and method for accelerating network selection by a wireless user equipment (ue) device using satellite-based positioning system

A system and method for accelerating network selection by a wireless user equipment (UE) device without having to perform a full band scan (FBS). In one exemplary embodiment, the wireless UE device is operable to determine its location using a satellite-based positioning system such as GPS. Based on determining that the wireless UE device is in a particular area defined by a set of corners, a subset of appropriate frequency data is determined for selective scanning by the wireless UE device. Using the subset of appropriate frequency data, a selective scanning is performed for locating a network by the wireless UE device.

System and method for accelerating network selection by a wireless user equipment (UE) device using satellite-based positioning system

A system and method for accelerating network selection by a wireless user equipment (UE) device (102) without having to perform a full band scan (FBS). In one exemplary embodiment, the wireless UE device (102) is operable to determine its location using a 5 satellite-based positioning system such as GPS. Based on determining (1004) that the wireless UE device is in a particular area defined by a set of corners, a subset of appropriate frequency data is determined for selective scanning (1006) by the wireless UE device (102). Using the subset of appropriate frequency data, a selective scanning (1006) is performed for locating a network by the wireless UE device (102). cm Of Lu C) C-.) C) C-) C) w cn C-) cn C-) 00 CD C:) ui Lo Of - \, C) C.) nn C5 cn < CD CL. C/) LLJ C)::: C) C14 C)

System and method for accelerating network selection by a wireless user equipment (UE) device using a satellite-based positioning system

System and method for accelerating network selection by a wireless user equipment (ue) device using satellite-based positioning system

System and method for accelerating network selection by a wireless user equipment (UE) device using satellite-based positioning system

System and method for accelerating network selection by a wireless user equipment device

本发明涉及一种无需执行全频带扫描(FBS)，加速无线用户装置(UE)设备(102)的网络选择的系统和方法。在一个典型实施例中，无线UE设备(102)能够使用如GPS的卫星定位系统来确定它的位置。基于确定(1004)的该无线UE设备的位置位于一个由角的集合定义的特定区域中，对该无线UE设备(102)的选择性扫描(1006)，确定(1006)适当频率数据的一个子集。使用该特定频率数据的子集，无线UE设备(102)执行一个选择性扫描(1006)以定位一个网络。

System and method for accelerating network selection by a wireless user equipment (ue) device using satellite-based positioning system

SYSTEM AND METHOD FOR ACCELERATING NETWORK SELECTION BY A WIRELESS USER EQUIPMENT (UE) DEVICE USING SATELLITE BASED POSITIONING SYSTEM A system and method for accelerating network selection by a wireless user equipment (UE) device (102) without having to perform a full band scan (FBS). In one exemplary embodiment, the wireless UE device (102) is operable to determine its location using a satellite-based positioning system such as UPS. Based on determining (1004) that the wireless UE device is in a particular area defined by a set of corners, a subset of appropriate frequency data is determined for selective scanning (1006) by the wireless UE device (102). Using the subset of appropriate frequency data, a selective scanning (1006) is performed for locating a network by the wireless UE device (102). FIG.2

System and method for accelerating network selection by a wireless user equipment device using satellite-based positioning system

전체 대역 스캔(FBS;full band scan)을 수행할 필요없이, 무선 UE(user equipment) 장치(102)에 의한 네트워크 선택을 가속하기 위한 시스템 및 방법. 예시적 일 실시예에서, 무선 사용자 장치(102)는 GPS와 같은 SBPS(satellite-based positioning system)를 사용해 자신의 위치를 판정하도록 동작 가능하다. 무선 사용자 장치가 한 세트의 코너들에 의해 정의되는 특정 영역에 위치한다고 판정하는 것(1004)에 기초해, 적절한 주파수 데이터의 서브세트가 무선 사용자 장치(102)에 의한 선택적 스캐닝(1006)을 위해 판정된다. 적절한 주파수 데이터의 서브세트를 사용해, 무선 사용자 장치(102)에 의해 네트워크를 찾아내기 위한 선택적 스캐닝(1006)이 수행된다. A system and method for accelerating network selection by a wireless user equipment (UE) device 102 without having to perform a full band scan (FBS). In one exemplary embodiment, wireless user device 102 is operable to determine its location using a satellite-based positioning system (SBPS), such as GPS. Based on determining 1004 that the wireless user device is located in a particular area defined by a set of corners, a subset of the appropriate frequency data is for selective scanning 1006 by the wireless user device 102. It is determined. Using a subset of the appropriate frequency data, selective scanning 1006 is performed by the wireless user device 102 to find the network. 전체 대역 스캔(FBS), 선택적 스캐닝, 가속된 네트워크 선택, 무선 사용자 장치, SBPS, 적절한 주파수 데이터의 서브세트 Full band scan (FBS), selective scanning, accelerated network selection, wireless user device, SBPS, subset of appropriate frequency data

Locating method for shielded spaces

The invention relates, inter alia, to a method for generating signals which allow a mobile navigation device situated within a shielded space to perform location. According to the invention: at least one imitative radio signal (Sf, Sf1, Sf2, Sf3) is generated which contains fictitious satellite data from at least one fictitious satellite (TS, TS1, TS2, TS3); at least one modified radio signal (Sm1, Sm2) is generated by modification of a received satellite signal from a real satellite (CS1, CS2, CS3, CS4, CS5, CS6) of a real satellite system (50), the modification including adding fictitious trajectory data and/or position data of the at least one fictitious satellite (TS, TS1, TS2, TS3) to satellite data of the received satellite signal; and the at least one imitative radio signal (Sf, Sf1, Sf2, Sf3) and the at least one modified radio signal (Sm1, Sm2) are fed into the shielded space.

Repeater unit for satellite positioning system

In order to determine location of objects, 15, in areas of poor or no reception from satellites, 9, 10, 11, 12, local repeaters, 5, 6, 7, 8 are provided. Each repeater determines its position and preferably transmits a GPS-type signal at the same frequency with position information to a given area. The transmitted codes may be different to those used by the satellite and other repeater units. At least four satellite or repeater signals should be received by the mobile unit to determine its position. In one embodiment the repeater stations are battery powered and attached to the tops of buildings, 1, 2, 3, 4, transmitting signals downwardly to mobile stations at street level. Code assignment and height determination may be carried out on installation or automatically.

System and method for global positioning system repeater

An indoor GPS repeater unit comprising a directional receive aerial for receiving GPS signals from one or more satellites in a preselected area of the sky, a transmitting aerial for transmitting the received GPS signals; and, RF amplification means for enhancing the received GPS signals before transmitting into an indoor area is disclosed. One or more such GPS repeater units are used to reproduce the satellite constellation within buildings or underground to provide GPS coverage in these environments.

System and method for accelerating network selection by a wireless user equipment (UE) device using a satellite-based positioning system

A system and method for accelerating network selection by a wireless user equipment (UE) device (102) without having to perform a full band scan (FBS). In one exemplary embodiment, the wireless UE device (102) is operable to determine its location using a satellite-based positioning system such as GPS. Based on determining (1004) that the wireless UE device is in a particular area defined by a set of corners, a subset of appropriate frequency data is determined for selective scanning (1006) by the wireless UE device (102). Using the subset of appropriate frequency data, a selective scanning (1006) is performed for locating a network by the wireless UE device (102).

System and method for accelerating network selection by a wireless user equipment (ue) device using satellite-based positioning system

A system and method for accelerating network selection by a wireless user equipment (UE) device without having to perform a full band scan (FBS). In one exemplary embodiment, the wireless UE device is operable to determine its location using a satellite-based positioning system such as GPS. Based on determining that the wireless UE device is in a particular area defined by a set of corners, a subset of appropriate frequency data is determined for selective scanning by the wireless UE device. Using the subset of appropriate frequency data, a selective scanning is performed for locating a network by the wireless UE device.

System and method for accelerating network selection by a wireless user equipment (UE) device using satellite-based positioning system

System and method for accelerating network selection by a wireless user equipment (UE) device using satellite-based positioning system

System and method for accelerating network selection by a wireless user equipment (UE) device using satellite-based positioning system

A system and method for accelerating network selection by a wireless user equipment (UE) device (102) without having to perform a full band scan (FBS). In one exemplary embodiment, the wireless UE device (102) is operable to determine its location using a 5 satellite-based positioning system such as GPS. Based on determining (1004) that the wireless UE device is in a particular area defined by a set of corners, a subset of appropriate frequency data is determined for selective scanning (1006) by the wireless UE device (102). Using the subset of appropriate frequency data, a selective scanning (1006) is performed for locating a network by the wireless UE device (102). cm Of Lu C) C-.) C) C-) C) w cn C-) cn C-) 00 CD C:) ui Lo Of - \, C) C.) nn C5 cn < CD CL. C/) LLJ C)::: C) C14 C)

Advanced timing and time transfer for satellite constellations using crosslink ranging and accurate time source

FIELD: radio engineering and communications. SUBSTANCE: invention relates to radio communication. System, method, and apparatus for advanced timing and time transfer for satellite constellations using crosslink ranging and an accurate time source are disclosed. In at least one embodiment of present invention, time synchronisation on a subset of satellites with crosslinking capabilities is used to distribute time through a network of crosslinked satellites. EFFECT: technical result of disclosed invention consists in improvement of satellite-based positioning, navigation and timing using crosslinking and accurate time source to provide accurate information on timing for calibration of local oscillator on a crosslink paired satellite. 18 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 608 763 C2 (51) МПК H04B 7/185 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014106929, 31.07.2012 (24) Дата начала отсчета срока действия патента: 31.07.2012 Дата регистрации: (72) Автор(ы): УЭЛАН Дэвид А. (US), ГУТТ Грегори М. (US), ФАЙФ Питер М. (US) Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: US 5490076 A, 06.02.1996. US 09.09.2011 US 61/533,122; 12.03.2012 US 13/418,200 (45) Опубликовано: 24.01.2017 Бюл. № 3 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 09.04.2014 (86) Заявка PCT: US 2012/048973 (31.07.2012) 2 6 0 8 7 6 3 (43) Дата публикации заявки: 20.10.2015 Бюл. № 29 5506781 A, 09.04.1996. US 2007155318 A1, 05.07.2007. US 6133870 A, 17.10.2000. CN 101833103 A, 15.09.2010. RU 2390730 C1, 27.05.2010. R U (73) Патентообладатель(и): Зе Боинг Компани (US) 24.01.2017 2 6 0 8 7 6 3 R U WO 2013/036328 (14.03.2013) C 2 C 2 (87) Публикация заявки PCT: Адрес для переписки: 190000, Санкт-Петербург, Вох-1125, "ПАТЕНТИКА" (54) УСОВЕРШЕНСТВОВАННЫЕ СИНХРОНИЗАЦИЯ ПО ВРЕМЕНИ И ПЕРЕДАЧА ЗНАЧЕНИЙ ВРЕМЕНИ ДЛЯ ГРУППИРОВОК СПУТНИКОВ ...

Method for realizing realtime synchronization with Beidou system to generate pseudo satellite signals

本发明涉及一种与北斗系统实时同步生成伪卫星信号的方法，其步骤：获取当前的实际卫星系统星历参数，同时实现将本地信号与实际北斗时的时间同步，并判断是否实现时间同步；根据当前的可见星和用户位置关系利用选星方法进行伪卫星星号选择；根据存储的星号，将该星号对应的伪卫星信号进行仿真计算，生成与实际星历同步的电文参数和观测量参数；输出伪卫星信号的伪距参数、多普勒参数和误差参数，判断当前伪卫星是否已经不再满足选星要求；计算选出的备用卫星的电文参数和观测量参数，并判断当前时刻是否应该进行换星；满足则进行换星；反之，循环进行伪卫星的生成，实现与北斗系统的同步。本发明能够广泛应用于通用接收机，能够和在轨卫星联合定位。

Evaluation System for Global Navigation Satellite System and Method for the same

본 발명은 위성을 이용한 측위 시스템, 예를 들면 GPS(Global Positioning System) 위성을 이용한 측위 시스템의 평가 시스템에 관한 것이다. 위성 기반 측위 시스템은 고도 각(angle of elevation)이 낮은 지역이나 지하구역, 고층 건물이 밀집한 도심 지역, 대형 건물의 내부 등에서는 위성 신호를 막는 장애물이 많아 사용가능성이 심각하게 제한된다. 본 발명은 기존의 GPS 위성 체계 또는 향후에 도입될 의사위성(pseudolite) 또는 준천정위성(Quasi-zenith satellite) 체계 하에서 주어진 위성 체계에 대해 특정한 지역에서의 측위 서비스 가능 여부를 지도 상에 시각적으로 표시하는 것이 가능한 측위 시스템의 평가 시스템을 제시한다. The present invention relates to a positioning system using a satellite, for example, an evaluation system of a positioning system using a GPS (Global Positioning System) satellite. Satellite-based positioning systems have severe obstacles to satellite signals in areas with low angles of elevation, underground areas, high-density urban areas, and inside large buildings. The present invention visually displays on a map whether a location service is available in a specific area for a given satellite system under an existing GPS satellite system or a future satellite or quasi-zenith satellite system. We present an evaluation system of positioning systems that can be done. 구체적으로 본 발명에 따른 지구 측위 위성 시스템의 평가 시스템은 표시부와, 키조작부와, 포인팅 장치와, 지형, 지물 정보를 포함하는 3차원 디지탈 지리 정보가 저장된 맵 데이터베이스와, GPS 위성들의 궤도 정보들이 저장된 궤도 모델이 저장된 저장부와, Specifically, the evaluation system of the earth positioning satellite system according to the present invention includes a display database, a key control unit, a pointing device, a map database storing 3D digital geographic information including terrain and feature information, and orbital information of GPS satellites. A storage unit storing the trajectory model, 상기 키조작부 및/또는 포인텅 장치를 통해 관심 영역 및 관심 시간대 정보를 입력 받고, 이 관심 시간대에 대해 상기 맵 데이터베이스에서 추출한 관심 영역을 다수의 셀로 분할하여 각 셀 상의 한 점에서 상기 궤도 모델들의 해당 시각에서의 궤도 위치로의 직선 상에 상기 맵 데이터베이스 상의 지형 지물이 교차되는지를 체크하여, 교차되지 않는 관측 가능 위성수가 미리 정해진 수 이상이면 해당 셀을 서비스 이용 가능 지역으로 설정하는 단계를 관심 영역에 대해 반복하여, 각 시간대별로 관심 영역의 서비스 이용 가능 여부를 상기 표시부에 표시하는 제어부를 포함하는 것을 특징으로 한다. The region of interest and time zone of interest are input through the key manipulation unit and / ...

System and method of positioning

FIELD: location of objects. SUBSTANCE: given position determining system is intended for localization of objects situated in points to which signals of Global Positioning System do not penetrate. In agreement with first version system incorporates Global Positioning System receiver and unit restoring clock synchronization. Computer receives data on position of object and accurate time. Computer computes new orbital data for four pseudo-satellites as minimum. Pseudo-satellites are antennas mounted inside closed or screened space which send data to receiver. In correspondence with second version data on position of pseudo-satellites are entered into computer without Global Positioning System receiver. Standard time signal is used in this case. Computer computes orbital data for each pseudo-satellite and sends time signal and astronomical coordinates of each pseudo-satellite. Delay taking into account delay of propagation due to different length of connecting cable for each satellite is made part of time signal. EFFECT: updating of positioning and locating system. 10 cl, 11 dwg ЗЕЕ ЭГс ПЫ сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ” 2161 318. (51) МПК? 13) С2 С 01 $ 5/14 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98120106/09, 29.01.1997 (24) Дата начала действия патента: 29.01.1997 (30) Приоритет: 05.04.1996 Ш$ 08/628,360 (46) Дата публикации: 21.12.2000 (56) Ссылки: 4$ 53111685 А, 10.05.1994. КЦ 2012866 СЛ, 15.05.1994. КУ 94018148 СЛ, 20.03.1996. ЕР 0665517 АЗ, 08.01.1997. ЕР 0679904 А2, 02.11.1995. (85) Дата перевода заявки РСТ на национальную фазу: 05.11.1998 (86) Заявка РСТ: 1$ 9701486 (29.01.1997) (87) Публикация РСТ: М/О 97/38326 (16.10.1997) (98) Адрес для переписки: 129010, Москва, ул. Большая Спасская 25, стр.3, ООО "Городисский и Партнеры", Емельянову Е.И. (71) Заявитель: . ДИСКОВИЖН АССОШИЕИТС (13) (72) Изобретатель: Джерри А.СПИЗЛ (ЦЭ), Леонард ЧУПАК (0$) (73) Патентообладатель: . ДИСКОВИЖН АССОШИЕИТС (15$) ...

Wireless system for transmitting local messages and method for locating navigation receiver within wireless system for transmitting local messages

FIELD: communication. SUBSTANCE: invention relates to a wireless local messaging system. Wireless local messaging system comprises a transmitter and a receiver, said transmitter transmits a local message to a receiver, wherein receiver is a navigation receiver adapted for receiving and processing navigation messages from satellites of global satellite navigation system at a predetermined carrier frequency, each of satellites transmits navigation messages with individual to PRN-code of satellite, transmitter is configured to transmit a local message in signal a local message on predetermined carrier frequency with local PRN-code that is not used by satellite of global satellite navigation system, and receiver further configured to receive local PRN-code and processing local message signal. EFFECT: providing centralised control of transmitters, which allows to shift complexity of hardware and software from multiple transmitters to central equipment. 9 cl, 2 dwg, 6 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК G01S 19/11 (11) (13) 2 582 994 C2 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014112229/07, 01.09.2012 (24) Дата начала отсчета срока действия патента: 01.09.2012 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ЭЛЕР Файт (DE), ШТЕФФЕС Юлиан (DE), ФОЙТ-ФОН-ФОЙТЕНБЕРГ Михаэль (DE) 01.09.2011 EP 11007102.4 (43) Дата публикации заявки: 10.10.2015 Бюл. № 28 R U (73) Патентообладатель(и): АСТРИУМ ГМБХ (DE) (45) Опубликовано: 27.04.2016 Бюл. № 12 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.04.2014 2 5 8 2 9 9 4 (56) Список документов, цитированных в отчете о поиске: WO 2009/069700 A1, 04.06.2009. US 6597988 B1, 22.07.2003. US 6101178 A, 08.08.2000. WO 2009/044819 A1, 09.04.2009. RU 2008143353 A, 10.05.2010. (86) Заявка PCT: 2 5 8 2 9 9 4 R U C 2 C 2 EP 2012/003667 (01.09.2012) (87) Публикация заявки PCT: WO 2013/029802 (07.03.2013) Адрес для переписки: 105082, Москва, ...

Pseudolite positioning system based on universal receiver

本发明涉及一种基于通用接收机的伪卫星定位系统，包含导航接收机、时钟/频率模块、微处理器及卫星信号模拟器，微处理器包含选星模块、及与选星模块信号连接的电文生成模块，导航接收机接收在轨卫星的可视卫星信号，其输出端分别与时钟/频率模块、选星模块、电文生成模块相信号连接，时钟/频率模块、选星模块、电文生成模块分别与卫星信号模拟器相信号连接。本发明适用于通用接收机，实现伪卫星和在轨卫星联合定位，伪卫星采用在轨卫星相同的电文格式，支持现有的普通卫星导航定位接收机，根据信号覆盖区域自动选择转发卫星，精确控制信号发射时间，伪卫星发射信号和真实信号的伪距转发误差不超过20ns，设计合理，伪距误差小、定位精度高。

Navigation signal transmitter, navigation signal transmission method, and position information provision device

옥내에서 멀태패스 페이딩이 큰 환경에서도 정밀도를 저하시키는 일 없이 위치 정보를 제공하는 위치 정보 제공 시스템이 제공된다. 위치 정보 제공 장치(100)는, 옥내 송신기(200)로부터 송신되는, 다른 PRN 코드로 스펙트럼 확산 부호화되어, 송신 안테나(TX-ANT1 및 TX-ANT2)로부터 각각 송신되는 측위 신호를, 수신 안테나(RX-ANT)에 의해 수신한다. 위치 정보 제공 장치(100)는, 송신 신호의 PRN 코드를 각각 독립적으로 비동기로 서치한다. 처음에 1번째의 PRN 코드를 포착할 수가 있었던 경우, 그 동기 루프를 이용하여 타 채널로 다른 PRN 코드의 포착을 시도한다. 2개의 채널로 동기 포착을 할 수가 있었던 경우는, 한쪽의 채널의 신호를 선택하여, 측위의 처리가 실시된다. There is provided a position information providing system that provides position information without degrading precision even in a circumstance where multi-path fading is indoors. The positional information providing apparatus 100 transmits the positioning signals transmitted from the indoor transmitter 200 by spread spectrum coding with different PRN codes and transmitted from the transmission antennas TX-ANT1 and TX-ANT2, respectively, to the reception antennas RX -ANT). The location information providing apparatus 100 independently and asynchronously searches the PRN codes of transmission signals. If the first PRN code can be captured first, another PRN code is attempted to be acquired on the other channel using the synchronous loop. In the case where synchronization acquisition can be performed with two channels, a signal of one channel is selected and positioning processing is performed.

Method for unambigous composite binary offset carrier signal tracking based on generalized sampling and apparatus for performing the same

합성 이진 오프셋 반송파(Composite Binary Offset Carrier, CBOC) 신호를 수신하는 단계, 상기 CBOC 신호를 샘플링하여 N개의 자연샘플을 획득하는 단계 - 여기서, N은 3이상의 자연수이고, 상기 N개의 자연샘플 중 제1 자연샘플은 상기 CBOC 신호의 중앙부에 위치함 -, 상기 제1 자연샘플과 상기 CBOC 신호를 상관하여 상관함수를 생성하는 단계, 및 상기 상관함수를 이용하여 상기 CBOC 신호를 추적하는 단계를 포함하는 CBOC 신호 추적 방법 및 이를 수행하는 장치가 제공된다. 본 발명의 실시예들에 따른 CBOC 신호 추적 방법 및 이를 수행하는 장치에 따르면, CBOC 신호 추적 시 발생하는 모호성 문제를 해결할 수 있고, 우수한 성능, 낮은 복잡도, 또는 그 사이의 균형점을 사용자 의도에 따라 선택할 수 있다.

GPS positioning system using pseudolite

Method, pseudolite, and system for providing indoor navigation service

본 발명은 실내 항법 서비스를 제공하는 기술에 관한 것으로서, 특히, 의사위성신호 처리 기능이 없는 수신기이더라도 위성신호 음영지역에서 위치를 계산할 수 있도록 하는 신호를 생성하여 발생시킴으로써 실내 항법 서비스를 제공하는 방법, 의사위성 및 시스템에 관한 것이다. The present invention relates to a technique for providing an indoor navigation service, and more particularly, to a method for providing an indoor navigation service by generating and generating a signal for calculating a position in a shadow area of a satellite signal even in a receiver without a pseudo-satellite signal processing function, Pseudolites and systems.

System and method for providing auxiliary data in a location network

Method for unambigous composite binary offset carrier signal tracking based on generalized sampling and apparatus for performing the same

합성 이진 오프셋 반송파(Composite Binary Offset Carrier, CBOC) 신호를 수신하는 단계, 상기 CBOC 신호를 샘플링하여 N개의 자연샘플을 획득하는 단계 - 여기서, N은 3이상의 자연수이고, 상기 N개의 자연샘플 중 제1 자연샘플은 상기 CBOC 신호의 중앙부에 위치함 -, 상기 제1 자연샘플과 상기 CBOC 신호를 상관하여 상관함수를 생성하는 단계, 및 상기 상관함수를 이용하여 상기 CBOC 신호를 추적하는 단계를 포함하는 CBOC 신호 추적 방법 및 이를 수행하는 장치가 제공된다. 본 발명의 실시예들에 따른 CBOC 신호 추적 방법 및 이를 수행하는 장치에 따르면, CBOC 신호 추적 시 발생하는 모호성 문제를 해결할 수 있고, 우수한 성능, 낮은 복잡도, 또는 그 사이의 균형점을 사용자 의도에 따라 선택할 수 있다. Receiving a Composite Binary Offset Carrier (CBOC) signal, sampling the CBOC signal to obtain N natural samples, where N is a natural number equal to or greater than 3, and a first of the N natural samples CBOC comprising the steps of: - a natural sample is located in the center of the CBOC signal; generating a correlation function by correlating the CBOC signal with the first natural sample; and tracking the CBOC signal using the correlation function A signal tracking method and an apparatus for performing the same are provided. According to the CBOC signal tracking method and apparatus for performing the CBOC signal tracking method according to embodiments of the present invention, it is possible to solve the problem of ambiguity occurring during CBOC signal tracking, and to select excellent performance, low complexity, or a balance point between them according to user intention can

Indoor positioning system based on global positioning system signals and pseudolites with outdoor directional antennae

FIELD: physics, navigation. SUBSTANCE: invention relates to indoor positioning systems. The present invention provides at least three directional GPS antennae (2) for picking up specific GPS signals conning from at least three GPS satellites (S), at least three radio-frequency GPS repeaters (3) for amplifying the GPS signals coming from the directional GPS antennae (2), at least three GPS antennae (6) for transmitting the GPS signals coming from the radio-frequency GPS repeaters (3) to indoors, at least one GPS receiver (7) for picking up the GPS signals coming from the GPS antennae (6) by its (7) antenna (8). EFFECT: improved indoor coverage with GPS signals received outside. 13 cl, 1 tbl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК G01S 19/11 (11) (13) 2 536 512 C2 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012132635/07, 31.12.2009 (24) Дата начала отсчета срока действия патента: 31.12.2009 (73) Патентообладатель(и): САБАНДЖИ УНИВЕРСИТЕСИ (TR) (43) Дата публикации заявки: 20.02.2014 Бюл. № 5 R U Приоритет(ы): (22) Дата подачи заявки: 31.12.2009 (72) Автор(ы): ТЕКИН Ибрахим (TR), БОЗКУРТ Айхан (TR), ОЗСОЙ Керем (TR) (45) Опубликовано: 27.12.2014 Бюл. № 36 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 31.07.2012 C 2 C 2 Carrier Phase Positioning with Pseudolites and Multiple GPS Repeaters", Proceedings of the 16th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GPS/GNSS 2003), 09.09.2003, . I. Petrovski и др.: "Pseudolite Implementation for Social Infrastructure and Seamless (см. прод.) (86) Заявка PCT: 2 5 3 6 5 1 2 IB 2009/056002 (31.12.2009) R U 2 5 3 6 5 1 2 (56) Список документов, цитированных в отчете о поиске: I. Petrovski и др.: "Indoor Code and (87) Публикация заявки PCT: WO 2011/080541 (07.07.2011) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) ...

Indoor positioning system using gps and indoor positioning method using gps

본 발명은, 실내에서 수신하기 어려운 GPS위성신호를 이용하여 실내에서도 정확한 위치 측위를 할 수 있는 GPS를 이용한 실내 측위 시스템 및 GPS를 이용한 실내 측위 방법이 개시되어 있다. 본 발명의 GPS를 이용한 실내 측위 시스템은, 실내에서 사용자로부터 위치기반 서비스가 요청되면, 단말장치가 GPS위성신호를 이용한 측위를 시도하면, 실외에 마련되어 GPS위성신호를 수신하기 위한 복수개의 외부안테나를 구비한 실내중계시스템이 상기 복수개의 외부안테나 중 상기 단말장치로부터 측위가 시도된 해당 외부안테나를 통해 수신되는 GPS위성신호를 실내의 해당하는 소정 구역으로 중계하여 송신하고, 이에 실내중계시스템으로부터 GPS위성신호가 수신되면 상기 단말장치가 실내중계시스템을 통해 수신되는 GPS위성신호에 기초하여 위치를 계측하고, 상기 단말장치가 상기 복수개의 외부안테나 각각의 위치정보에 대응하여 맵핑되는 각 실내위치정보를 포함하는 기 저장된 실외/실내맵핑정보에 기초하여, 상기 계측된 위치정보에 맵핑되는 실내위치정보를 파악하는 구성을 포함한다. 측위, GPS, 실내, 실내지도 The present invention discloses an indoor positioning system using GPS and an indoor positioning method using GPS, which can accurately position the indoors using a GPS satellite signal that is difficult to receive indoors. In the indoor positioning system using GPS of the present invention, when a location-based service is requested from a user indoors, when a terminal apparatus attempts to position using a GPS satellite signal, a plurality of external antennas are provided outdoors to receive a GPS satellite signal. The indoor relay system transmits a GPS satellite signal received through the corresponding external antenna from which the positioning device is attempted, among the plurality of external antennas, to the corresponding predetermined area in the room, thereby transmitting the GPS satellite signal from the indoor relay system. When the signal is received, the terminal device measures the location based on the GPS satellite signal received through the indoor relay system, and the terminal device includes each indoor location information mapped corresponding to the location information of the plurality of external antennas. Based on the pre-stored outdoor / indoor mapping information, it is mapped to the measured position information It includes a configuration to determine the indoor location. Positioning, GPS, indoor, indoor map

Globally referenced positioning in a shielded environment

A method, apparatus and system for globally referenced positioning in a shielded environment includes integrating and correlating information from a UWB receiver, a GPS receiver, and a bent-path GPS receiver adapted to extract a GPS radio frequency wave from a heterodyned GPS signal. The method, apparatus, and system is resistant to interference and can be used in a shielded environment such as indoors or behind a line-of-sight barrier.

Apparatus and method for position detection

본 발명은 도로상에 설치된 전자태그를 이용하여 차량위치를 정확하게 표시하는 차량위치검출장치 및 방법에 관한 것이다. 본 발명에는 차량 내부에 도로상에 설치되어 경도, 위도 및 높이정보를 저장하는 전자태그의 위치정보를 읽어들이는 리더부와, 다수의 GPS 위성으로부터 수신된 위성위치 및 의사거리를 이용하여 상기 의사거리의 오차정보를 검출하는 오차정보 검출부가 구비된다. 그리고, 의사거리에서 상기 오차정보를 차감하여 의사거리를 보정하는 의사거리 보정부와, 상기 보정된 의사거리를 이용하여 차량위치를 검출하는 제어부가 구비된다. 이에 따라, 본 발명은 전자태그의 위치정보를 이용하여 의사거리를 보정함으로써, 차량위치측정의 정밀도를 향상시킬 수 있다. 차량위치검출, 의사거리보정, 전자태그, 리더

METHOD FOR REDUCING THE LIGHTNING OF A RECEIVER WITHIN A SYSTEM, IN PARTICULAR GEOLOCATION.

POSITIONING SYSTEM WITH GNSS SIGNAL GENERATION MEANS AND RADIANT CABLE

La présente invention concerne un système et une méthode de positionnement le long d'un câble. Le système de positionnement (100) comprend, outre le câble rayonnant (110), des moyens de génération (120) de premiers et seconds signaux GNSS, des premiers moyens d'injection (131) pour injecter les premiers signaux GNSS à une première extrémité du câble et des seconds moyens d'injection pour injecter les seconds signaux GNSS à la seconde extrémité du câble. Les premiers (seconds) signaux GNSS sont définis comme ceux qui seraient reçus en un point situé à une première (seconde) extrémité virtuelle du câble, en configuration de ciel ouvert, d'un premier (second) ensemble de satellites visibles dans un premier (second) cône de visibilité. The present invention relates to a system and method for positioning along a cable. The positioning system (100) comprises, besides the radiating cable (110), means (120) for generating first and second GNSS signals, first injection means (131) for injecting the first GNSS signals at a first end cable and second injection means for injecting the second GNSS signals at the second end of the cable. The first (second) GNSS signals are defined as those that would be received at a point located at a first (second) virtual end of the cable, in an open sky configuration, from a first (second) set of satellites visible in a first ( second) visibility cone.