BROADCAST EPHEMERIS PARAMETER FITTING AND PRECISION
ANALYSIS OF BEIDOU SATELLITE
1)School of Geology Engineering and Geomatics, Chang’an University, Xi’an 710054
Abstract The GPS ICD document defined a new group of 18 parameters broadcast ephemeris model, according to the user algorithm of this new parameter model, the partial derivative expression of each parameter is derived, and the linear function model is established between the 18 parameters and satellite position vector. In order to test this algorithm, the Beidou satellite orbit determination data are used to calculate the 18 parameters of Beidou satellite broadcast ephemeris by the principle of leastsquares adjustment. The result verified the correctness of the algorithm, and simultaneously proved 4 hours fitting error is better than 0.01 m.
Key words ：
Beidou satellite
user algorithmbroadcast ephemeris parameter
fitting analysis
GPS ICD document
18 parameters broadcast ephemeris model
Received: 08 April 2013
Published: 13 October 2013
Cite this article:
Wang Le,Jia Xiaolin. BROADCAST EPHEMERIS PARAMETER FITTING AND PRECISION
ANALYSIS OF BEIDOU SATELLITE[J]. jgg, 2013, 33(5): 71-74.
Wang Le,Jia Xiaolin. BROADCAST EPHEMERIS PARAMETER FITTING AND PRECISION
ANALYSIS OF BEIDOU SATELLITE[J]. jgg, 2013, 33(5): 71-74.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2013/V33/I5/71
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