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| 引用本文： | 刘伟平,郝金明,李作虎.???????????????λ?á????????????[J].大地测量与地球动力学,2010,30(2):144-147. |
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| 作者姓名： | 刘伟平 郝金明 李作虎 |
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| 作者单位： | 解放军信息工程大学测绘学院,郑州,450052 |
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| 摘 要： | ????????????????????????????λ?á????????????????????????????????????????????????????????λ???????????????????????????????????????t?????????????????????????λ?á?????????з??????????????GPS???????????????λ?????С??2 m?????????????0.1 cm/s????
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| 关 键 词： | ?????? λ?? ??? ???????? ??? |
SOLUTION METHOD AND ACCURACY ANALYSIS OF SATELLITE POSITION AND VELOCITY FROM BROADCAST EPHEMERIS |
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| Liu Weiping,Hao Jinming,Li Zuohu.SOLUTION METHOD AND ACCURACY ANALYSIS OF SATELLITE POSITION AND VELOCITY FROM BROADCAST EPHEMERIS[J].Journal of Geodesy and Geodynamics,2010,30(2):144-147. |
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| Authors: | Liu Weiping Hao Jinming Li Zuohu |
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| Institution: | Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052 |
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| 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. |
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| Keywords: | broadcast ephemeris position velocity precise ephemeris interpolation |
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