jgg     2010 30 (第3期):  92-95    ISSN: 0412-1961  CN: 21-1139/TG APPLICATION BASED ON SECONDGENERATION WAVELET IN SIGNALDENOISING OF GPS DOUBLE DIFFERENCE OBSERVATIONS He Yonghong 1) ; Wen Hongyan 2) ; and Jin Pengwei 1) 1) Department of Civil Engineering and Construction Management, Hunan University of Science and Engineering, Yongzhou 4251002) College of Civil Engineering, Guilin University of Technology, Guilin 541004 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null