COMPARISON AND INVESTIGATION OF VAV AND ETERNA TIDAL ANALYSIS METHODS
Tian Guie 1) ; Chen Xiaodong 2) ; Sun Heping 2) ; Chen Guang 1) ;Song Lijie 1) ; and Liu Nannan 3)
1)Trafficing and Surveying College of Hebei Polytechnic University, Tangshan 0630092)Key Laboratory of Dynamical Geodesy, Institute of Geodesy & Geophysics, CAS, Wuhan 4300773)Industrial Development Reform Bureau of Caofeidian,Tangshan 063200
Abstract：The drift model,regression factor of airpressure and disturbance eliminating of VAV and ETERNA tide analysis methods are compared and studied theoretically. Then further,the data observed with superconducting gravimeters at Wuhan station are analyzed by use of these two relevant softwares,we can get smaller stand deciation after interation from VAV than ETERNA method, but the differences between the analyzed value and the theoretical amplitude factor is at the same level.
