利用CHAMP卫星星历恢复引力位模型的模拟研究

基金项目: 中国科学院测量与地球物理研究所动力大地测量学开放研究实验室资助项目(L(21-(01))

详细信息

Simulation of Recovering Gravitational Potential Model from the Ephemeredes of CHAMP

1 Institute of Geodesy and Geophysics, Chinese Academy of Sciences, 54 Xudong Road, Wuhan, China, 430077;
2 Dept. of Surveying and Geo-informatics, Tongji University, 1239 Siping Road, Shanghai, China, 210094

摘要: 对CHAMP卫星星历恢复引力位模型的精度,使用3种方法和不同积分弧长作了模拟计算,结果表明,采用正则化方法并扩展积分弧长将有助于提高解算位系数的精度,预期CHAMP卫星观测将使现有引力位模型低阶位系数的精度提高1~2个数量级
- CHAMP卫星 /
- 地球重力场模型 /
- 正则化解法
Abstract: Three methods with different arc length of integration are tested in this simulation to recover gravitational potential model from the ephemoeredes of CHAMP.The results show that the regularzed method with suitable arc length of integration will improve the precision of recovering gravitational potential model.The precision of low degree harmonic coefficients from CHAMPobservations is expected 1~2 magnitude better than any current gravitational potential model.
- CHAMP /
- gravitational potential model /
- regularized method