| 北斗卫星轨道预报精度分析及改进 |
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| 引用本文： | 毛悦,宋小勇,胡小工,贾小林.北斗卫星轨道预报精度分析及改进[J].测绘科学技术学报,2017,34(2). |
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| 作者姓名： | 毛悦 宋小勇 胡小工 贾小林 |
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| 作者单位： | 1. 地理信息工程国家重点实验室,陕西西安710054;西安测绘研究所,陕西西安710054;2. 中国科学院上海天文台,上海,200030 |
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| 摘 要： | 针对北斗GEO、IGSO、MEO的3种卫星类型和动态偏航、零偏航两种姿态控制模式,进行了以ECOM光压模型为基础的轨道预报精度分析。确定了北斗3类卫星的短期、中期、长期预报光压参数选择策略。采用光压参数修正法,通过对北斗卫星光压参数长期变化规律建模,有效提升了地影段轨道长期预报精度。研究结果可同时服务于北斗卫星轨道确定及历书参数生成。
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| 关 键 词： | 北斗卫星导航系统 自主导航 轨道预报 光压模型 精度分析 |
Orbit Prediction Accuracy Analysis and Improvement Method for BeiDou Satellites |
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| MAO Yue,SONG Xiaoyong,HU Xiaogong,JIA Xiaolin.Orbit Prediction Accuracy Analysis and Improvement Method for BeiDou Satellites[J].Journal of Zhengzhou Institute of Surveying and Mapping,2017,34(2). |
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| Authors: | MAO Yue SONG Xiaoyong HU Xiaogong JIA Xiaolin |
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| Abstract: | Based on the ECOM solar radiation pressure model,the orbit prediction accuracy are analyzed for Beidou GEO,IGSO and MEO satellites respectively during the yaw-steering and orbit-normal attitude control mode.The ECOM parameter selection strategies for BeiDou satellite short-term,medium-term and long-term orbit forecasting are also determined.Through Beidou satellite ECOM parameters' long-term variation modeling,using the radiation parameter correction method,the accuracy of the eclipse segment long term orbit prediction could be effectively improved.The results can be used in the Beidou satellite orbit determination and ephemeris parameter generation. |
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| Keywords: | Beidou satellite navigation system autonomous navigation orbit prediction solar radiation pressure model accuracy analysis |
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