jgg     2011 31 (3):  47-50    ISSN: 0412-1961  CN: 21-1139/TG APPLICATION OF KALMAN FILTERING IN DETECTING IONOSPHERIC TEC ANOMALY PRIOR TO EARTHQUAKE Nie Zhaosheng 1,2) ;Zhu Fuying 1,2) ;and Fu Ningbo 3) 1)Institute of Seismology, CEA, Wuhan 4300712)Crustal Movement Laboratory, Wuhan 4300713)Jiangxi Supervision and Inspection Center for Surveying and Mapping Product Quality, Nanchang 330046 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null