| 利用Bernese5.0软件实现LEO卫星精密定轨 |
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| 引用本文： | 汪楚,胡小工,郭鹏.利用Bernese5.0软件实现LEO卫星精密定轨[J].天文研究与技术,2011(3). |
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| 作者姓名： | 汪楚 胡小工 郭鹏 |
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| 作者单位： | 中国科学院上海天文台;中国科学院研究生院; |
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| 基金项目： | 国家科技部863计划(2009AA12Z319)资助 |
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| 摘 要： | 越来越多的LEO卫星装载了高精度的星载GPS接收机,星载GPS定轨已成为LEO卫星精密定轨的重要手段之一。星载GPS精密定轨精度依赖于GPS星历及钟差精度,采用CODE(Center for Orbit Determination in Europe)官方网站提供的GPS精密星历及钟差数据,基于瑞士伯尼尔大学开发的Bernese 5.0软件,采用非差减缩动力学定轨方法,解算了60天的CHAMP卫星和SAC-C卫星轨道,并将所得轨道与JPL和GFZ事后科学轨道比较,得出的轨道位置三维精度优于20 cm量级,速度三维精度约为0.20 mm/s。
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| 关 键 词： | 精密定轨 星载GPS 减缩动力学法 Bernese5.0软件 |
Precision Orbit Determination of LEO Satellites Using the Software BERNESE 5.0 |
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| Wang Chu,Hu Xiaogong,Guo Peng.Precision Orbit Determination of LEO Satellites Using the Software BERNESE 5.0[J].Astronomical Research & Technology,2011(3). |
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| Authors: | Wang Chu Hu Xiaogong Guo Peng |
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| Institution: | Wang Chu1,2,Hu Xiaogong1,Guo Peng1(1.Shanghai Astronomical Observatory,Chinese Academy of Sciences,Shanghai 200030,China,2.Graduate University of the Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | Currently an increasing number of LEO satellites are equipped with highly-accurate satellite-borne GPS receivers.The accuracies of orbit determination with such GPS depend on GPS satellite ephemerides and clock biases.This paper uses GPS satellite-ephemeris and clock-bias data from the CODE(Center for Orbit Determination in Europe)and calculates sets of 60-day orbits of the CHAMP and SAC-C satellites by using the Reduced-Dynamic Orbit Determination(with undifferenced GPS data).The calculated orbits are comp... |
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| Keywords: | Precision orbit determination Onboard GPS Reduced kinetic methods BERNESE GPS Software Version 5 0 |
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