SOLUTION METHOD AND ACCURACY ANALYSIS OF SATELLITE POSITION AND VELOCITY FROM BROADCAST EPHEMERIS
Liu Weiping;Hao Jinming; and Li Zuohu
Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052
Abstract The methods for calculating satellite position and velocity from broadcast ephemeris and precise ephemeris are introduced. The formulation for solving satellite velocity from broadcast ephemeris is given and a method for interplating satellite velocity from modern precise ephemeris including only the information of satellite position is derived. At last, a practical example is given and the accuracy of satellite position and velocity by broadcast ephemeris is analyzed.The results indicate that the error of satellite position by broadcast ephemeris is better than 2 m,and satellite velocity is within 0.1 cm/s.
Key words ：
broadcast ephemeris
position
velocity
precise ephemeris
interpolation
Received: 01 January 1900
Corresponding Authors:
Liu Weiping
Cite this article:
Liu Weiping,Hao Jinming,and Li Zuohu. SOLUTION METHOD AND ACCURACY ANALYSIS OF SATELLITE POSITION AND VELOCITY FROM BROADCAST EPHEMERIS[J]. , 2010, 30(2): 144-147.
Liu Weiping,Hao Jinming,and Li Zuohu. SOLUTION METHOD AND ACCURACY ANALYSIS OF SATELLITE POSITION AND VELOCITY FROM BROADCAST EPHEMERIS[J]. jgg, 2010, 30(2): 144-147.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2010/V30/I2/144
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