| 关于坐标旋转法进行地球静止轨道导航卫星广播星历拟合的探讨 |
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| 引用本文： | 阮仁桂,贾小林,吴显兵,冯来平. 关于坐标旋转法进行地球静止轨道导航卫星广播星历拟合的探讨[J]. 测绘学报, 2011, 0(Z1): 145-150 |
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| 作者姓名： | 阮仁桂 贾小林 吴显兵 冯来平 |
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| 作者单位： | 西安测绘研究所; |
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| 摘 要： | 介绍基于坐标选转法的GEO广播星历拟合算法,推导坐标系旋转前后卫星瞬时轨道根数及其摄动的解析关系式,分析选择不同惯性系(不同的X轴指向和不同旋转角)对卫星轨道根数及其摄动的影响,通过仿真GEO轨道的广播星历拟合实验分析不同坐标旋转角度对星历参数拟合结果的影响。分析和试验表明:①采用简化法,经坐标变换后得到的轨道倾角不为常数,而是随着选择的参考历元不同呈周期性变化;②选择不同的惯性参考系会导致轨道倾角摄动以不同的放大倍数放大后被新坐标系的轨道升交点赤经摄动和近地点幅角摄动吸收,放大倍数可达几十倍至上百倍甚至出现奇点;③拟合得到的GEO卫星星历参数Δn和.Ω的取值范围随坐标旋转角的增大而减小。
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| 关 键 词： | 广播星历 地球静止轨道(GEO) 坐标旋转 根数摄动 |
Broadcast Ephemeris Parameters Fitting for GEO Satellites Based on Coordinate Transformation |
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| RUAN Rengui,JIA Xiaolin,WU Xianbing,FENG Laiping Xi'an Research Institute of Surveying , Mapping,Xi'an China. Broadcast Ephemeris Parameters Fitting for GEO Satellites Based on Coordinate Transformation[J]. Acta Geodaetica et Cartographica Sinica, 2011, 0(Z1): 145-150 |
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| Authors: | RUAN Rengui JIA Xiaolin WU Xianbing FENG Laiping Xi'an Research Institute of Surveying Mapping Xi'an China |
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| Affiliation: | RUAN Rengui,JIA Xiaolin,WU Xianbing,FENG Laiping Xi'an Research Institute of Surveying and Mapping,Xi'an 710054 China |
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| Abstract: | An introduction on broadcast ephemeris parameters fitting for GEO satellites based on coordinate transformation is presented.The formulas of the relationship between the new instantaneous orbital elements as well as their perturbation and that before coordinate transformation are derived,and influence of difference inertial coordinate(different X-axes orientation or different rotation angle) is analyzed.Experiments for broadcast ephemeris parameters fitting from simulated GEO orbit data are conducted to ana... |
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| Keywords: | broadcast ephemeris GEO coordinate transformation perturbation of orbital elements |
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