GPS天线相位中心校正对GRACE卫星精密定轨的影响
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摘要
使用GRACE卫星星载GPS观测数据,研究地面获取的先验PCV模型和利用残差法估计的在轨PCV模型对低轨卫星精密定轨的影响,并采用GFZ精密轨道对比和SLR检核手段对其进行评估。结果表明,使用先验PCV模型会降低GRACE卫星定轨精度,相反利用在轨PCV模型可以提高定轨精度,提升数量级可达mm级。
We use onboard GPS data of GRACE satellites to research the impact of the priori phase center variations(PCV)model by ground calibration and in-flight PCV model,estimated by the residual method.The orbit accuracy is assessed by GFZ precision orbits comparison and SLR checkout.The results show that using prior PCV models can reduce orbit determination accuracy,but using inflight PCV model can improve the orbit determination accuracy(mm level).
We use onboard GPS data of GRACE satellites to research the impact of the priori phase center variations(PCV)model by ground calibration and in-flight PCV model,estimated by the residual method.The orbit accuracy is assessed by GFZ precision orbits comparison and SLR checkout.The results show that using prior PCV models can reduce orbit determination accuracy,but using inflight PCV model can improve the orbit determination accuracy(mm level).
引文
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[11]赵齐乐,刘经南,葛茂荣,等.CHAMP卫星cm级精密定轨[J].武汉大学学报:信息科学版,2006,31(10):879-882(Zhao Qile,Liu Jingnan,Ge Maorong,et al.Precision Orbit Determination of CHAMP Satellite with cm-Level Accuracy[J].Geomatics and Information Science of Wuhan University,2006,31(10):879-882)
[12]秦显平,焦文海,程芦颖,等.利用SLR检核CHAMP卫星轨道[J].武汉大学学报:信息科学版,2005,30(1):38-41(Qin Xianping,Jiao Wenhai,Cheng Luying,et al.Evaluation of CHAMP Satellite Orbit with SLR Measurements[J].Geomatics and Information Science of Wuhan University,2005,30(1):38-41)
[13]Haines B,Bar-Sever Y,Bertiger W,et al.One-Centimeter Orbit Determination for Jason-1:New GPS-Based Strategies[J].Marine Geodesy,2004,27(1-2):299-318
[14]Bock H,Jggi A,Meyer U,et al.Impact of GPS Antenna Phase Center Variations on Precise Orbits of the GOCE Satellite[J].Advances in Space Research,2011,47(11):1 885-1 893
[2] Reigber C,Lühr H,Schwintzer P.CHAMP Mission Status[J].Advances in Space Research,2002,30(2):129-134
[3] Bock H,Jggi A,vehla D,et al.Precise Orbit Determination for the GOCE Satellite Using GPS[J].Advances in Space Research,2007,39(10):1 638-1 647
[4]赵春梅,程鹏飞,益鹏举.基于伪随机脉冲估计的简化动力学卫星定轨方法[J].宇航学报,2011,32(4):762-766(Zhao Chunmei,Cheng Pengfei,Yi Pengju.Reduced-Dynamics Satellite Orbit Determination Based on Pseudo-Stochastic Pulse Estimation[J].Journal of Astronautics,2011,32(4):762-766)
[5]田英国,郝金明.Swarm卫星天线相位中心校正及其对精密定轨的影响[J].测绘学报,2016,45(12):1 406-1 412(Tian Yingguo,Hao Jinming.Swarm Satellite Antenna Phase Center Correction and Its Influence on the Precision Orbit Determination[J].Acta Geodaetica et Cartographica Sinica,2016,45(12):1 406-1 412)
[6] Montenbruck O,Garcia-Fernandez M,Yoon Y,et al.Antenna Phase Center Calibration for Precise Positioning of LEO Satellites[J].GPS Solutions,2009,13(1):23-34
[7] Mao X,Visser P N A M,Ijssel J V D.Impact of GPS Antenna Phase Center and Code Residual Variation Maps on Orbit and Baseline Determination of GRACE[J].Advances in Space Research,2017,59(12):2 987-3 002
[8] Jggi A,Dach R,Montenbruck O,et al.Phase Center Modeling for LEO GPS Receiver Antennas and Its Impact on Precise Orbit Determination[J].Journal of Geodesy,2009,83(12):1 145-1 162
[9]赵春梅,唐新明.基于星载GPS的资源三号卫星精密定轨[J].宇航学报,2013,34(9):1 202-1 206(Zhao Chunmei,Tang Xinming.Precise Orbit Determination for ZY-3Satellite Mission Using GPS Receiver[J].Journal of Astronautics,2013,34(9):1 202-1 206)
[10]周晓青,胡志刚,张新远.低轨卫星星载GNSS精密定轨的精度检核方法[J].武汉大学学报:信息科学版,2010,35(11):1 342-1 345(Zhou Xiaoqing,Hu Zhigang,Zhang Xinyuan.Discussion on POD Accuracy Evaluations for Satellite-Bone LEO Satellites[J].Geomatics and Information Science of Wuhan University,2010,35(11):1 342-1 345)
[11]赵齐乐,刘经南,葛茂荣,等.CHAMP卫星cm级精密定轨[J].武汉大学学报:信息科学版,2006,31(10):879-882(Zhao Qile,Liu Jingnan,Ge Maorong,et al.Precision Orbit Determination of CHAMP Satellite with cm-Level Accuracy[J].Geomatics and Information Science of Wuhan University,2006,31(10):879-882)
[12]秦显平,焦文海,程芦颖,等.利用SLR检核CHAMP卫星轨道[J].武汉大学学报:信息科学版,2005,30(1):38-41(Qin Xianping,Jiao Wenhai,Cheng Luying,et al.Evaluation of CHAMP Satellite Orbit with SLR Measurements[J].Geomatics and Information Science of Wuhan University,2005,30(1):38-41)
[13]Haines B,Bar-Sever Y,Bertiger W,et al.One-Centimeter Orbit Determination for Jason-1:New GPS-Based Strategies[J].Marine Geodesy,2004,27(1-2):299-318
[14]Bock H,Jggi A,Meyer U,et al.Impact of GPS Antenna Phase Center Variations on Precise Orbits of the GOCE Satellite[J].Advances in Space Research,2011,47(11):1 885-1 893