jgg     2010 30 (4):  68-73    ISSN: 0412-1961  CN: 21-1139/TG InSAR INTERFEROGRAM FILTERING BASED ON SUSAN AND ITS IMPROVED ALGORITHM Xu Bing; Yin Hongjie; Zhu Jun; and Wang Changcheng School of Info-Physics and Geomatics Engineering, Central South University, Changsha 410083 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null