jgg     2010 30 (5):  73-76    ISSN: 0412-1961  CN: 21-1139/TG GEO SATELLITE ABNORMITY RECOGNITION BASED ON WAVELET ANALYSIS Liu Yanyu 1, 2) ;Chang Zhiqiao 2) ;He Feng 2) ; and Guo Rui 2) 1)Institute of Surveying and Mapping，Information and Engineering University, Zhengzhou 4500522)Beijing Global Information Center of Application and Exploration，Beijing 100094 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null