Improved dual-channel sparse SAR moving target detection method based on zero-space adjustment
A technology of moving target detection and zero space adjustment, which is applied in measuring devices, radio wave measurement systems, radio wave reflection/re-radiation, etc., and can solve problems such as inapplicability
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[0057] An improved dual-channel sparse SAR moving target detection method based on null space adjustment of the present invention comprises the following steps:
[0058] Step 1. Obtain the sparse SAR echo data of the dual-channel front and side view, that is, the echo data of channel 1 s 1 and channel two echo data s 2 .
[0059] refer to figure 1 , is a schematic diagram of dual-channel side-looking sparse SAR echo data sampling in the present invention. The invention is suitable for dual-channel front and side-looking synthetic aperture radars. figure 1 C1 represents channel one, C2 represents channel two, T(t 0 ) means that the target is at t 0 time position, T(t m ) means that the target is at t m Time position, channel one randomly transmits pulses, and two channels receive pulses at the same time, Δt is the sparse sampling time interval, t m The instant slant distance between target and channel 1 is R 1 (t m ), t m The instantaneous slant distance between the ...
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