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In order to reduce the amount of echo data and achieve a wider observation swath, a parametric sparse representation method for the motion parameter estimation of ground moving targets is proposed with low pulse repetition frequency (PRF). First, the displaced phase center antenna technique is introduced to cancel the clutters. Second, since range cell migration is not subject to PRF limitations,...
To reduce the amount of echo data in ground moving targets imaging, an imaging method of ground moving targets is proposed with compressed data based on discrete fractional Fourier transform and Compressed Sensing. Firstly, the DPCA technique is induced to cancel the clutters with the range-compression signals. Secondly, based on the sparsity of the azimuth signals of the moving targets in fractional...
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