伪随机脉冲对卫星轨道拟合精度影响分析
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摘要
研究伪随机脉冲在吸收低轨卫星和4大导航系统卫星未模型化摄动力方面的有效性,分析其对拟合轨道精度的影响。结果表明,伪随机脉冲能够有效吸收低轨卫星及GNSS卫星未模型化的摄动力。对于低轨卫星,伪随机脉冲能够有效模拟大气阻力对轨道的影响,达到mm级拟合精度;对于GNSS卫星,伪随机脉冲能够在一定程度上吸收太阳光压摄动,尤其是与ECOM太阳光压模型联合使用,能够充分吸收ECOM模型未能吸收的摄动力,只需每天设置一组伪随机脉冲参数,其拟合精度能达到mm级。
We study the influence of pseudo-stochastic pulse in the absorption of low earth orbit(LEO) satellites and the unmodeled perturbation forces of four navigation systems. We also analyze the influence of accuracy on fitting orbit. The results show that pseudo-stochastic pulse can effectively absorb the unmodeled perturbation forces of LEO and GNSS satellites. For LEO satellites, pseudo-stochastic pulse can simulate the influence of atmospheric resistance on orbit, and achieve millimeter level fitting precision. For GNSS satellites, pseudo-stochastic pulse can only absorb sun light pressure perturbation to some extent; however, combined with the ECOM sun light model it can fully absorb perturbation forces unabsorbed by the ECOM model and achieve millimeter level fitting precision, requiring setting up a set of pseudo-stochastic pulse parameters every day.
We study the influence of pseudo-stochastic pulse in the absorption of low earth orbit(LEO) satellites and the unmodeled perturbation forces of four navigation systems. We also analyze the influence of accuracy on fitting orbit. The results show that pseudo-stochastic pulse can effectively absorb the unmodeled perturbation forces of LEO and GNSS satellites. For LEO satellites, pseudo-stochastic pulse can simulate the influence of atmospheric resistance on orbit, and achieve millimeter level fitting precision. For GNSS satellites, pseudo-stochastic pulse can only absorb sun light pressure perturbation to some extent; however, combined with the ECOM sun light model it can fully absorb perturbation forces unabsorbed by the ECOM model and achieve millimeter level fitting precision, requiring setting up a set of pseudo-stochastic pulse parameters every day.
引文
[1] 张睿, 杨元喜. BDS/GPS联合定轨的贡献分析[J]. 武汉大学学报:信息科学版, 2017, 42(5):600-608(Zhang Rui, Yang Yuanxi.Contribution Analysis of BDS/GPS Combined Orbit Determination[J].Geomatics and Information Science of Wuhan University,2017,42(5):600-608)
[2] 匡翠林. 利用GPS非差数据精密确定低轨卫星轨道的理论及方法研究[D]. 武汉:武汉大学, 2008(Kuang Cuilin. Research on Precise Orbit Determination Theory and Methods of Lower Earth Orbit Satellites Using Zero-Difference GPS Data[D]. Wuhan: Wuhan University,2008)
[3] Montenbruck O, Gill E, Kroes R. Rapid Orbit Determination of LEO Satellites Using IGS Clock and Ephemeris Products[J]. GPS Solutions, 2005, 9(3): 226-235
[4] Schrama E J O, Visser P N A M. Accuracy Assessment of the Monthly GRACE Geoids Based upon a Simulation[J]. Journal of Geodesy, 2007, 81(1): 67-80
[5] Pail R. CHAMP-,GRACE-,GOCE-Satellite Projects[A]//Grafarend E. Encyclopedia of Geodesy[M]. Cham:Springer, 2015
[6] J?ggi A, Beutler G,Mervart L. GRACE Gravity Field Determination Using the Celestial Mechanics Approach-First Results[A]//Mertikas S P. Gravity, Geoid and Earth Observation[M]. Heidelberg: Springer,2010
[7] 陈俊平, 王解先. GPS定轨中的太阳辐射压模型[J]. 天文学报, 2006, 47(3): 310-319(Chen Junping, Wang Jiexian. Solar Radiation Pressure Models for the GPS Satellites[J]. Acta Astronomica Sinica, 2006,47(3):310-319)
[8] Beutler G, J?ggi A, Hugentobler U, et al. Efficient Satellite Orbit Modelling Using Pseudo-Stochastic Parameters[J]. Journal of Geodesy, 2006, 80(7): 353-372
[9] Guo J L, Hu M, Zhao Q L, et al. Reducing Influence of Gravity Model Error in Precise Orbit Determination of Low Earth Orbit Satellites[J]. Geo-Spatial Information Science, 2007, 10(2): 105-110
[10] 韩保民, 朱秀英. 伪随机脉冲估计及其在简化动力学定轨中的应用[J]. 武汉大学学报:信息科学版, 2007, 32(5): 466-469(Han Baomin, Zhu Xiuying. Estimation of Pseudo-Stochastic Pulses and Their Applications in Reduced-Dynamic Orbit Determination[J]. Geomatics and Information Science of Wuhan University, 2007, 32(5): 466-469)
[11] 赵春梅,程鹏飞. 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. Reduced-Dynamics Satellite Orbit Determination Based on Pseudo-Stochastic Pulse Estimation[J]. Journal of Astronautics, 2011,32(4):762-766)
[12] 刘伟平, 郝金明, 田英国, 等. 一种伪随机脉冲的快速参数估计方法[J]. 武汉大学学报:信息科学版, 2015, 40(11): 1 487-1 492(Liu Weiping, Hao Jinming,Tian Yingguo, et al. Fast Parameter Estimation for Pseudo-Stochastic Pulse[J]. Geomatics and Information Science of Wuhan University,2015,40(11):1 487-1 492)
[13] 田英国, 郝金明, 谢建涛, 等. SWARM卫星星载GPS精密定轨方法及精度分析[J]. 测绘科学技术学报, 2016, 33(5): 452-457(Tian Yingguo, Hao Jinming,Xie Jiantao,et al. SWARM Precise Orbit Determination and Accuracy Analysis Using Onboard GPS Data[J]. Journal of Geomatics Science and Technology,2016,33(5):452-457)
[14] 闫志闯. GRACE卫星精密轨道确定与一步法恢复地球重力场[D]. 郑州:信息工程大学, 2015(Yan Zhichuang. Precise Orbit Determination and the Earth Gravity Field Recovery by One Step Method for GRACE[D]. Zhengzhou: Information Engineering University, 2015)
[2] 匡翠林. 利用GPS非差数据精密确定低轨卫星轨道的理论及方法研究[D]. 武汉:武汉大学, 2008(Kuang Cuilin. Research on Precise Orbit Determination Theory and Methods of Lower Earth Orbit Satellites Using Zero-Difference GPS Data[D]. Wuhan: Wuhan University,2008)
[3] Montenbruck O, Gill E, Kroes R. Rapid Orbit Determination of LEO Satellites Using IGS Clock and Ephemeris Products[J]. GPS Solutions, 2005, 9(3): 226-235
[4] Schrama E J O, Visser P N A M. Accuracy Assessment of the Monthly GRACE Geoids Based upon a Simulation[J]. Journal of Geodesy, 2007, 81(1): 67-80
[5] Pail R. CHAMP-,GRACE-,GOCE-Satellite Projects[A]//Grafarend E. Encyclopedia of Geodesy[M]. Cham:Springer, 2015
[6] J?ggi A, Beutler G,Mervart L. GRACE Gravity Field Determination Using the Celestial Mechanics Approach-First Results[A]//Mertikas S P. Gravity, Geoid and Earth Observation[M]. Heidelberg: Springer,2010
[7] 陈俊平, 王解先. GPS定轨中的太阳辐射压模型[J]. 天文学报, 2006, 47(3): 310-319(Chen Junping, Wang Jiexian. Solar Radiation Pressure Models for the GPS Satellites[J]. Acta Astronomica Sinica, 2006,47(3):310-319)
[8] Beutler G, J?ggi A, Hugentobler U, et al. Efficient Satellite Orbit Modelling Using Pseudo-Stochastic Parameters[J]. Journal of Geodesy, 2006, 80(7): 353-372
[9] Guo J L, Hu M, Zhao Q L, et al. Reducing Influence of Gravity Model Error in Precise Orbit Determination of Low Earth Orbit Satellites[J]. Geo-Spatial Information Science, 2007, 10(2): 105-110
[10] 韩保民, 朱秀英. 伪随机脉冲估计及其在简化动力学定轨中的应用[J]. 武汉大学学报:信息科学版, 2007, 32(5): 466-469(Han Baomin, Zhu Xiuying. Estimation of Pseudo-Stochastic Pulses and Their Applications in Reduced-Dynamic Orbit Determination[J]. Geomatics and Information Science of Wuhan University, 2007, 32(5): 466-469)
[11] 赵春梅,程鹏飞. 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. Reduced-Dynamics Satellite Orbit Determination Based on Pseudo-Stochastic Pulse Estimation[J]. Journal of Astronautics, 2011,32(4):762-766)
[12] 刘伟平, 郝金明, 田英国, 等. 一种伪随机脉冲的快速参数估计方法[J]. 武汉大学学报:信息科学版, 2015, 40(11): 1 487-1 492(Liu Weiping, Hao Jinming,Tian Yingguo, et al. Fast Parameter Estimation for Pseudo-Stochastic Pulse[J]. Geomatics and Information Science of Wuhan University,2015,40(11):1 487-1 492)
[13] 田英国, 郝金明, 谢建涛, 等. SWARM卫星星载GPS精密定轨方法及精度分析[J]. 测绘科学技术学报, 2016, 33(5): 452-457(Tian Yingguo, Hao Jinming,Xie Jiantao,et al. SWARM Precise Orbit Determination and Accuracy Analysis Using Onboard GPS Data[J]. Journal of Geomatics Science and Technology,2016,33(5):452-457)
[14] 闫志闯. GRACE卫星精密轨道确定与一步法恢复地球重力场[D]. 郑州:信息工程大学, 2015(Yan Zhichuang. Precise Orbit Determination and the Earth Gravity Field Recovery by One Step Method for GRACE[D]. Zhengzhou: Information Engineering University, 2015)