Abstract
Robust principal component analysis (RPCA) is an important method for synthetic aperture radar-ground moving target indication (SAR-GMTI). However, the phase difference among channels caused by the velocity of the moving target is not sensitive to the correlation coefficient. It results in that the conditions of applying RPCA method cannot be satisfied in an arbitrary environment. To solve the problem, a novel phase envelope transform-robust principal component analysis (NPET-RPCA) method is proposed. The correlation coefficient among channels for moving target is decreased by the proposed method under the condition that the sparsity of the target remains unchanged. Meanwhile, the azimuth velocity could be estimated by the positions of the focused points. Simulation results demonstrate the effectiveness of the proposed method.
Published Version
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