| ERP预报误差对低轨卫星精密轨道预报的影响 |
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| 引用本文： | 张欣欣,王 磊,许钡榛,李 涛,陈锐志.ERP预报误差对低轨卫星精密轨道预报的影响[J].大地测量与地球动力学,2020,40(5):482-485. |
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| 作者姓名： | 张欣欣 王 磊 许钡榛 李 涛 陈锐志 |
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| 作者单位： | 武汉大学测绘遥感信息工程国家重点实验室;国家自然资源部大地测量数据处理中心 |
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| 基金项目： | 国家自然科学基金(41704002)。 |
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| 摘 要： | 结合珞珈一号卫星轨道数据，分析地球自转参数（ERP）预报误差对低轨卫星精密轨道预报的影响。结果表明，ERP预报误差主要对轨道切向和法向产生影响，对径向影响较小。当预报时间为10 d时，切向误差可达到dm级，这对cm级定位会产生较大影响。
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| 关 键 词： | ERP预报 珞珈一号卫星 自主定轨误差 |
The Impact of ERP Prediction Error on LEO Precise Orbit Prediction |
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| ZHANG Xinxin,WANG Lei,XU Beizhen,LI Tao,CHEN Ruizhi.The Impact of ERP Prediction Error on LEO Precise Orbit Prediction[J].Journal of Geodesy and Geodynamics,2020,40(5):482-485. |
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| Authors: | ZHANG Xinxin WANG Lei XU Beizhen LI Tao CHEN Ruizhi |
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| Institution: | (State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China;Geodetic Data Processing Centre of Ministry of Natural Resources,334 East-Youyi Road,Xi’an 710054,China) |
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| Abstract: | The impact of ERP prediction error on LEO autonomous orbit determination is analyzed with the orbit data from Luojia-1A satellite. The test results indicate that ERP have a significant impact on the tangent and normal direction, with less impact on the radical direction. With 10-days prediction, the impact on the tangent direction reaches a decimeter level, which will have a major impact on the precise orbit determination. |
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| Keywords: | ERP prediction Luojia-1A satellite autonomous orbit determination error |
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