Ground clutter interference real-time suppression method for space-based external radiation source radar
A technology of external radiation source radar and clutter interference, applied in radio wave measurement systems, instruments, etc., can solve the problems of long convergence time, reduce algorithm complexity, and high complexity, and achieve a simple and reliable system structure and low algorithm complexity. , the effect of good project realization
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[0023] figure 1 This is a schematic diagram of the working principle of the space-based external radiation source. The system adopts a bistatic or multi-static radar architecture. The space-based external radiation source usually adopts a geostationary orbit (GEO) satellite constellation, and the radar receiver is installed on a low-orbit satellite platform. Direct wave signal and echo signal, wherein the echo signal may come from ground stationary target, ground moving target and air moving target. In typical target detection applications, air moving targets and ground moving targets are of interest to users, while the echoes of ground stationary targets become clutter signals that affect the detection of moving targets, which need to be processed by a certain clutter suppression algorithm to achieve dynamic target detection.
[0024] refer to Figure 4 and Figure 5 The invention aims at the broadening of the clutter spectrum caused by the movement of the radar platform, ...
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