A real-time sar quick view system with multiple working modes

A working mode and subsystem technology, applied in the radio wave measurement system, radio wave reflection/re-radiation, instruments, etc., can solve the problems of uninterpretable data and unfavorable SAR satellite ground test work, etc., to improve real-time performance , improve the efficiency and quality of test interpretation, and realize the effect of real-time processing

Active Publication Date: 2019-10-18
BEIJING INST OF SPACECRAFT SYST ENG
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  • Claims
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AI Technical Summary

Problems solved by technology

However, the traditional SAR fast vision system can only adapt to real-time processing in single polarization and single working mode.
It is not conducive to the development of SAR satellite ground test work, and it is impossible to obtain interpretation data efficiently

Method used

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  • A real-time sar quick view system with multiple working modes
  • A real-time sar quick view system with multiple working modes
  • A real-time sar quick view system with multiple working modes

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Embodiment Construction

[0036] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0037] Such as figure 1 , figure 2 As shown, the embodiment of a real-time SAR quick view system with multiple working modes provided by the present invention mainly consists of one raw data recording and distribution subsystem, two real-time decompression and imaging subsystems, two comprehensive display and analysis subsystems system composition. Among them, the comprehensive display and analysis subsystem is a high-performance graphics workstation with RAID disk array. The communication between the raw data recording and distribution subsystem and the real-time decompression and imaging subsystem, and between the real-time decompression and imaging subsystem and the comprehensive display and analysis subsystem all use RapidIO bus and Gigabit Ethernet for communication. Among them, the gigabit network is used to transmit control commands, and the RapidIO bus is ...

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Abstract

The invention provides a multiple-working-mode real-time SAR quick vision system which comprises an original data recording and distributing subsystem, a real-time decompression and imaging subsystem,a comprehensive displaying and analyzing subsystem. According to the multiple-working-mode real-time SAR quick vision system, serial Rapid IO is used for communication, and furthermore a mode of parallel processing of a plurality of DSPs is utilized for performing imaging processing in an SAR strip mode, a scanning imaging mode, an ultrafine mode or a sliding beam focusing mode, thereby obtainingan SAR load image data frame, and quickly displaying the SAR load image data frame. The multiple-working-mode real-time SAR quick vision system realizes real-time quick vision processing to multiple-working-mode SAR echo data.

Description

technical field [0001] The invention relates to a real-time SAR quick view system with multiple working modes, belonging to the technical field of real-time digital signal processing. Background technique [0002] The data downloaded from the remote sensing satellite SAR payload is the original data of the SAR payload including auxiliary data and radar echo data information. According to the satellite design and use specifications and the principle of SAR imaging, the original payload data downloaded by the satellite must be decompressed by BAQ and processed by imaging. Only then can the visible image data be obtained. [0003] Multi-working mode is a way for SAR satellites to use different polarization characteristics and different radar shooting methods to maximize the utilization of SAR load. However, the traditional SAR quick-view system can only adapt to single-polarization and single-working mode real-time processing. It is not conducive to the development of SAR sat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/292G01S13/90
CPCG01S7/292G01S13/904G01S13/9004
Inventor 刘勇安亮齐亚琳于忠江刘滕冲胡杰墨林侯锐田方齐天乐
Owner BEIJING INST OF SPACECRAFT SYST ENG
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