Sparse Regularization Effects on Radar ATR

Synthetic aperture radar images of civilian vehicles are shown to have reduced correlation in images formed using basis pursuit denoising compared to those formed using polar format algorithm. Sidelobe reduction via windowing has a negative effect on target recognition due to the inherent mainlobe spreading. Basis pursuit image does not suffer the same mainlobe spreading while reducing sidelobes, though benefits come at the cost of computations.