Radar distance super-resolution method based on target sparsity and time domain dechirping
A sparsity and super-resolution technology, applied to radio wave measurement systems, instruments, etc., can solve difficult and costly problems
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[0063] Below in conjunction with accompanying drawing of description, the present invention will be further described.
[0064] The present invention provides a radar range super-resolution method based on target sparsity and time-domain deskewing. Under the same radar signal bandwidth, compared with conventional pulse compression processing, it has higher distance resolution capability and realizes distance super-resolution. Resolution; Super-resolution over range improves the performance of object resolution, imaging, classification recognition, and object detection in clutter.
[0065] A radar range super-resolution method based on target sparsity and time-domain deskewing, comprising the following steps:
[0066] 1) Deskewing the chirp echo signal of the radar target in the time domain;
[0067] Specifically,
[0068] 1-1) Let the linear frequency modulation signal transmitted by the radar, that is, the LFM signal u(t) be,
[0069]
[0070] In the formula, t is time,...
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