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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

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Мониторинг СМИ

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

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4. Отображено 4.
14-01-2015 дата публикации

Tower equipment hoisting device and using method thereof

Номер: CN104276527A
Автор: LE MING, GUO BIN, HAN JUN, GENG LIXIANG, ZHOU HAO, CHENG YONG, DU XUEMIN, LIANG JIANDONG, WANG SHUBIN
Принадлежит:

The invention discloses a tower equipment hoisting device and a using method thereof. The tower equipment hoisting device comprises multiple hoisting units used for uplifting tower equipment, each hoisting unit comprises a jacking saddle and jack components symmetrically arranged at two ends of the jacking saddle, each jack component comprises a roadbed box arranged on a road, a load sharing plate, a jack fixing frame and a jack contained in the jack fixing frame, a first jacking cushion block layer is arranged at the top of each load sharing plate, the upper portion of each jack fixing frame is fixed on the jacking saddle, and one end, extending out of the bottom of the corresponding jack fixing frame, of a jack piston rod is abutted against each jacking cushion block. Requirements on load-bearing capacity of the road are lowered, loss of a jack hydraulic sealing component due to repeated inserting and extracting of an oil pipe is avoided, repeated demounting and mounting of the jacks ...

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Номер записи: 1
26-05-2023 дата публикации

Ship-borne radar ground clutter suppression method based on sub-pixel regression processing

Номер: CN116165621A
Автор: GENG LIXIANG, HOU JIAO, MENG FAN, ZHANG CHENGBAO
Принадлежит:

The invention relates to a ship-borne radar ground clutter suppression method based on sub-pixel regression processing, which is applied to a radar data processing system and comprises the following steps of: establishing a grid chart of a plurality of grade scales; after radar videos are received in real time, a multi-scale historical graph at the current moment is calculated according to the course and speed of a ship platform, and current radar video data are translated at all scales to form current video measurement. And sequentially comparing the value of each pixel of the measurement data at each scale with the difference between the value of each pixel of the measurement data at each scale and the grid chart of the corresponding scale, judging whether clutter judgment conditions are met or not until all scales do not mark targets for the pixel measurement, taking the pixel measurement as clutters, feeding back the measurement data to the grid chart of the corresponding scale, and ...

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Номер записи: 2
30-06-2023 дата публикации

Cross-period target form quality consistency inspection radar target automatic starting method

Номер: CN116359906A
Автор: GENG LIXIANG, MENG FAN, ZHANG CHENGBAO, ZHENG QINGLIN
Принадлежит:

The invention discloses a cross-cycle target form quality consistency inspection radar target automatic starting method. Current cycle data and real-time radar plot data in a time window cycle form a plot data pool, and the plot data pool is stored according to a cycle. Two plot initialization target models of different periods are sampled in the window plot pool according to the criterion of the maximum period interval, the predicted point position of the target model under each timestamp in the time window is obtained, and a corresponding measurement gate is established according to the position; then other support plots of the target model are searched in a measurement gate of each timestamp point in the window plot pool, finally, all target support points are fitted through a least square method, and whether the target model is a real moving target or not is determined through a consistency check function. And repeating the sampling and judging processes until the trace point at the ...

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Номер записи: 3
26-05-2023 дата публикации

Bilateral feature clustering plot condensation method for three-coordinate radar

Номер: CN116165620A
Автор: HOU JIAO, LI WEI, GENG LIXIANG
Принадлежит:

The invention provides a bilateral feature clustering plot condensation method for a three-coordinate radar, and belongs to the field of signal processing of the three-coordinate radar. Firstly, for a two-dimensional plane pool formed in the distance elevation dimension of each azimuth slice, a local maximum value is searched by using the amplitude of echoes, a distance elevation cell corresponding to the found local maximum value is used as a clustering center, then K-means clustering is performed by using the amplitude distribution of the echoes in the distance and elevation dimensions and the bilateral characteristics of Doppler information, and finally, K-means clustering is performed. The method comprises the following steps of: obtaining a primary plot cluster on an azimuth slice by using the two-dimensional feature information of amplitude and Doppler frequency of a plot, performing secondary sliding window clustering on amplitude distribution and Doppler information of the primary ...

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Номер записи: 4