Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 2. Отображено 2.
21-03-1995 дата публикации

Airport surface vehicle identification system and method

Номер: US0005400031A1
Автор: Fitts; Richard A.
Принадлежит: Norden Systems, Inc.

An airport vehicle identification system for improving airport traffic management and collision avoidance, includes a ground surveillance radar and a plurality of low power frequency translators located in spaced relationship about the surface of the airport. The radar system transmits a conventional radar signal for target detection and a beacon interrogation signal for target detection. Each translator is designed to bandshift the interrogation signal to a frequency value compatible with the vehicle transponder, and transmit the bandshifted interrogation signal to the vehicle transponder. Each frequency translator is bi-directional and receives a transponder reply signal indicative of vehicle identity and bandshifts the reply signal to a frequency value compatible with the ground surveillance radar and transmits the bandshifted reply signal to the ground radar. This invention fills the critical void in airport traffic control of providing ground controllers with electronic airport ground ...

Подробнее
Номер записи: 1
21-01-1997 дата публикации

Secondary surveillance radar interrogation system using dual frequencies

Номер: US0005596326A1
Автор: Fitts; Richard A.
Принадлежит: Northrop Grumman Corporation

A communication system is provided for identifying the position of aircraft in a surveillance area. The communication system includes a dual-frequency interrogator which produces two signals at different frequencies. These signals are transmitted over a narrow beam, scanning antenna, the antenna being located within the surveillance area. A transponder is provided on the aircraft with an auxiliary antenna assembly tuned to a frequency equivalent to the difference between the dual frequencies. The transponder produces a signal containing aircraft identification information. A processing unit is co-located on the aircraft with the transponder to receive the two signals transmitted by the interrogator and produce a signal equivalent to the difference between those signals. The difference signal produced by the processing unit is coupled with the transponder and is used to identify the position of aircraft on the ground. A stationary antenna and receiver are tuned to the frequency of the transponder ...

Подробнее
Номер записи: 2