EFFECTS OF RECEIVER AND SATELLITE CLOCK ERROR ON
DYNAMIC ATMOSPHERIC DELAY SOLUTION DURING PPP
Department of Surveying，Southwest Jiaotong University，Chengdu 611756
Abstract The features of receiver clock and satellite clock are the key factors to affect the precision of zenith total zenith delay when ZTD is computed by zerodifference precise point positioning.Experiments show that solution precision of troposphere parameter is largely affected by the clock jump.A reasonable strategy for this is given.Under the circumstance of site’s coordinates being fixed，the relation between receiver clock and ZTD parameters are enhanced，and ZTD’s precision will reduce with reduction of receiver clock precision，vise versa.The result analyzed 7.21data from Bejing and Fangshan stations indicates that real time PWV can be derived by IGS predicted product and PPP skill，and corresponding precision reaches 2-3 mm，which can satisfy the need of weather forecast.
Key words ：
precise point positioning
receiver clock error
satellite clock error
atmospheric delay
inversion
Received: 28 September 2013
Published: 28 May 2014
Cite this article:
Xu Shaoguang,Xiong Yongliang,Li Peng. EFFECTS OF RECEIVER AND SATELLITE CLOCK ERROR ON
DYNAMIC ATMOSPHERIC DELAY SOLUTION DURING PPP[J]. jgg, 2014, 34(3): 86-90.
Xu Shaoguang,Xiong Yongliang,Li Peng. EFFECTS OF RECEIVER AND SATELLITE CLOCK ERROR ON
DYNAMIC ATMOSPHERIC DELAY SOLUTION DURING PPP[J]. jgg, 2014, 34(3): 86-90.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I3/86
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