ANALYSIS OF A NEW EMPIRICAL MAPPING FUCTION GMF
Jiang Weiping1） ;Li Zhao2 ） ; and Qiu Lei2）
1）GNSS Research Center，Wuhan University，Wuhan 430079 2）School of Geodesy and Geomatics，Wuhan University，Wuhan 430079
Abstract This paper introduces the principle and effect of a new mapping function that could be used globally and easy to realize with software：the Global Mapping Function （GMF）.Using the tropospheric delay obtained by the method of piecewise linear estimation as true value，we make comparisons between result from GMF and the true value，as well as NMF.By analyzing the differences among these three methods and their connections，some beneficial conclusions have been drawn.Numerical experiments show that GMF is an empirical mapping function with higher accuracy and easier implementation，thas is to very practical for us to choose.
Key words ：
GMF（Global Mapping Function）
NWM（Numerical Weather Model）
piecewise linear estimation
NMF(Niell Mapping Function)
VMF(Vienna Mapping Function)
Received: 01 January 1900
Corresponding Authors:
Jiang Weiping
Cite this article:
Jiang Weiping,Li Zhao ,and Qiu Lei. ANALYSIS OF A NEW EMPIRICAL MAPPING FUCTION GMF[J]. , 2009, 29(5): 85-88.
Jiang Weiping,Li Zhao ,and Qiu Lei. ANALYSIS OF A NEW EMPIRICAL MAPPING FUCTION GMF[J]. jgg, 2009, 29(5): 85-88.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2009/V29/I5/85
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