Phase noise in the interferogram directly affects the result of phase unwrapping and the precision of interferometirc measurement.A novel approach combining the local frequency estimation with wavelet transform is presented to reduce interferometric phase noise for interferometric synthetic aperture radar(InSAR).According to the local frequency estimation result,the subband of wavelet coefficients containing useful information can be found out.Based on the fact that the VisuShrink method has effective noise...