| GPS天线相位中心校正对低轨卫星精密定轨的影响研究 |
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| 引用本文： | 胡志刚,赵齐乐,郭靖,刘经南.GPS天线相位中心校正对低轨卫星精密定轨的影响研究[J].测绘学报,2011(Z1). |
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| 作者姓名： | 胡志刚 赵齐乐 郭靖 刘经南 |
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| 作者单位： | 武汉大学测绘学院;武汉大学卫星导航定位技术研究中心; |
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| 摘 要： | 执行各种低轨卫星任务的官方在公布定轨结果的同时并没有公布星载接收机的天线相位中心校正(PCV)信息,而PCV误差是星载GNSS精密定轨必须考虑的主要误差源之一。以GRACE卫星任务为例研究PCV误差对低轨卫星精密定轨的影响,利用GPS观测数据直接估计与相位误差有关的天线相位偏差(PCO)和PCV参数,然后利用K波段测距系统和卫星激光测距仪数据进行定轨评定。
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| 关 键 词： | 天线相位中心校正 精密定轨 低轨卫星 天线 GPS |
Research on Impact of GPS Phase Center Variation on Precise Orbit Determination of Low Earth Orbit Satellite |
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| HU Zhigang,ZHAO Qile,GUO Jing,LIU Jingnan .School of Geodesy , Geomatics,Wuhan University,Wuhan ,China,.Research Center of GNSS.Research on Impact of GPS Phase Center Variation on Precise Orbit Determination of Low Earth Orbit Satellite[J].Acta Geodaetica et Cartographica Sinica,2011(Z1). |
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| Authors: | HU Zhigang ZHAO Qile GUO Jing LIU Jingnan School of Geodesy Geomatics Wuhan University Wuhan China Research Center of GNSS |
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| Institution: | HU Zhigang1,2,ZHAO Qile2,GUO Jing1,LIU Jingnan2 1.School of Geodesy and Geomatics,Wuhan University,Wuhan 430079,China,2.Research Center of GNSS |
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| Abstract: | All the LEO mission officials have published precision orbit determination results without phase center variation(PCV) information.In fact,PCV error is one of the main source of errors for precise orbit determination(POD).In this paper,the PCV error model is established and based on GRACE real data,the PCV is gained directly from estimated parameters.Finally,some evaluations are conducted with K-band ranging data and satellite laser ranging data. |
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| Keywords: | phase center variation precise orbit determination low earth orbit satellites antennas GPS |
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