Analysis of MAP speckle suppression algorithms
Valentin V. Zaitsev, Vladimir V. Zaitsev · 1996
The goal of the paper is to analyze filters based on MAP approach which use for speckle suppression of SAR images. Special attention is paid to such property of MAP estimate as a bias. Effect of bias reduction when number of looks increases is shown. New equations for MAP estimate expected a bias are suggested. The NMMAP filter that is a modification of MAP filter is proposed for point and multiple targets filtering. SIR-C SAR image has been used for the testing of filters.