关键词: 合成孔径雷达, 斑点噪声, 统计理论

Abstract:

Speckle noise in synthetic aperture radar (SAR) images severely affects the image quality and the following object classification and identification.This paper compares and analyses the filtering algorithms of SAR image speckle noise based on statistic theory.It is concluded that it is difficult to smooth speckle and to preserve edge by single filter synchronously.

Key words: synthetic aperture radar (SAR);speckle noise;statistic theory