Real-time ground clutter suppression method for space-based external radiation source radar
A technology for external radiation source radar and clutter interference, applied to radio wave measurement systems, instruments, etc., can solve problems such as long convergence time, reduce algorithm complexity, and high complexity, and achieve good engineering realization and low algorithm complexity , The system structure is simple and reliable
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[0023] figure 1 It is a schematic diagram of the working principle of the space-based external radiation source. The system adopts a bistatic or multistatic radar architecture. The space-based external radiation source usually adopts a constellation of geostationary orbit (GEO) satellites, and the radar receiver is installed on a low-orbit satellite platform to simultaneously receive Direct wave signals and echo signals, where echo signals may come from ground stationary targets, ground moving targets and air moving targets. In a typical target detection application, the moving target in the air and the moving target on the ground are of interest to the user, while the echo of the stationary target on the ground becomes a clutter signal that affects the detection of the moving target, which needs to be processed by a certain clutter suppression algorithm. target detection.
[0024] refer to Figure 4 and Figure 5 , the invention aims at broadening the clutter spectrum caus...
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