New method of point-target detection for SAR image

A new method of reducing speckle noise for SAR (synthesize aperture radar) image is proposed, which combine enhanced wavelet transform and self-adaptive Wiener filter based SAR image scene heterogeneity. It can better preserve clutter edge and point target The several probability density function (pdf) is analyzed after speckle is de-noised and target detection studied. A new target detection method and its realizing are proposed. The validity of the method is tested by experiments for SIR- C/X HH SAR image.