Research on Filtering Methods of InSAR Processing
InSAR处理中滤波方法研究 

The quality of interferogram will directly affect phase unwrapping,so interferogram filtering,which eliminate noise and improve quality of interferogram,is an important step of InSAR.In this paper,we studied several filter methods used in InSAR,including azimuth and range direction filter,multi\|look filter,medium filter,gradient-based adaptive filter and Goldstein adaptive filter.