Co-prime down-sampling interrupted synthetic aperture radar sparse imaging method
A synthetic aperture radar, sparse imaging technology, applied in the direction of reflection/re-radiation of radio waves, use of re-radiation, measurement devices, etc., can solve problems affecting the quality of synthetic aperture radar images, improve the quality of sparse imaging, and facilitate system implementation , the effect of suppressing the side lobe level
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[0048] The present invention mainly adopts the method of simulation experiment to verify, and all steps, conclusions are verified correctly on MATLABR2014b software. The specific implementation steps are as follows:
[0049] Step 1. Initialize SAR radar system parameters and imaging space:
[0050] Initialize SAR radar system parameters, including: radar carrier wavelength λ=0.03m, radar center frequency f 0 =10 10 Hz, radar transmission signal bandwidth B=5×10 8 Hz, radar transmit pulse width T r =10 -5 s, radar sampling frequency F s =6×10 8 Hz, radar beam center incident angle θ=45°, radar pulse repetition frequency PRF=1000Hz, platform motion velocity vector V r =[0,100,]0m, the number of sampling points N in the range direction of the radar system r =2048, the number of radar system azimuth sampling points N a =2048, initial position of radar system antenna P S (0)=[-100,0,6000]m;
[0051] Initialize the parameters of the SAR imaging space, including: take the ...
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