COMPARATIVE ANALYSIS ON TWO METHODS FOR IGS PRECISE EPHEMERIS INTERPOLATION
Zhang Shoujian 1) ;Li Jiancheng 1) ;Xing Lelin 2) ; and Hou Yanhui 3)
1)School of Geodesy and Geomatics, Wuhan University, Wuhan 4300792)Institute of Seismology,CEA,Wuhan\ 430071 3)Department of Mechanics, Southwest Jiaotong University, Chengdu 610031
Abstract On the basis of the periodicity of the designed orbit of GPS satellite, trigonometric function polynomial interpolation method is used to interpolate the IGS precise ephemeris. Besides, the accuracies of interpolation and extrapolation of trigonometric function polynomial interpolation are compared with classic Lagrange interpolation. The result indicates that the former can provide higher accuracy and is more stable.
Key words ：
IGS
precise ephemeris
Lagrange interpolation
trigonometric function interpolations
polynomial
Received: 01 January 1900
Corresponding Authors:
Zhang Shoujian
Cite this article:
Zhang Shoujian ,Li Jiancheng ,Xing Lelin et al. COMPARATIVE ANALYSIS ON TWO METHODS FOR IGS PRECISE EPHEMERIS INTERPOLATION[J]. , 2007, 27(2): 80-83.
Zhang Shoujian ,Li Jiancheng ,Xing Lelin et al. COMPARATIVE ANALYSIS ON TWO METHODS FOR IGS PRECISE EPHEMERIS INTERPOLATION[J]. jgg, 2007, 27(2): 80-83.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2007/V27/I2/80
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