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首页> 外文期刊>Advances in space research >Real-time orbit determination of Low Earth orbit satellite based on RINEX/DORIS 3.0 phase data and spaceborne GPS data
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Real-time orbit determination of Low Earth orbit satellite based on RINEX/DORIS 3.0 phase data and spaceborne GPS data

机译：基于RINEX / DORIS 3.0相位数据和星载GPS数据的低地球轨道卫星实时轨道确定

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摘要

High-precision of Low Earth orbit (LEO) satellite orbit is essential for some applications having real-time requirements, such as LEO navigation enhancement, real time scientific satellite research, and so on. Currently, more mature means for real-time orbit determination of LEO satellites rely on spaceborne GPS data and RINEX/DORIS 3.0 data. However, most researchers conduct experiments using spaceborne GPS data or RINEX/DORIS 3.0 data separately, and the experiment results from combining the two types of data simultaneously have not been obtained. Therefore, we evaluate simulated real-time orbit determination capability of using the RINEX/ DORIS 3.0 phase observations and spaceborne GPS pseudo-range observations from the HY2A satellite in this paper. Since the 1-km precision of the RINEX/DORIS 3.0 pseudo-range observations are unfavorable for the initial orbit, the GPS pseudo-range are used for this computation. But, the RINEX/DORIS 3.0 phase observations are used to solve the real-time orbit of HY2A satellite. Our analysis results are: (1) the three-dimensional (3D) position accuracy of HY2A satellite calculated by the spaceborne GPS pseudo-range is 6.803 m, which meets the initial orbit positional accuracy requirement. The initial orbit velocity requirement can be met when the 5-7th-order Lagrangian interpolation method is used to solve the satellite velocity. The 3D-RMS values of the HY2A satellite velocity is smaller than 0.500 m/s, indicating the initial velocity accuracy requirement is satisfied. (2) After Kalman filter convergence, the agreement of the comparison with the CNES precise orbit shows better than 0.100 m in radial position, an RMS of 0.373 m in 3D total position, and an RMS of 0.374 mm/s in 3D total velocity. The results suggest that the radial position accuracy is better than 0.100 m, and could meet some HY2A altimetry applications. In the course of this study, a Fortran-based prototype real-time orbit determination system RTO-DLEO (Real-Time Orbit Determination Software for Low Earth Orbit Satellite) was developed and used for the analysis. The results from thirteen-day of real-time orbit determination also validate the RTODLEO software, and show it is reliable.
机译：低地球轨道（LEO）卫星轨道的高精度对于一些具有实时要求的应用至关重要，例如Leo导航增强，实时科学卫星研究等。目前，更成熟的实时轨道确定Leo卫星依赖于星载GPS数据和RINEX / DORIS 3.0数据的方法。然而，大多数研究人员分别使用星载GPS数据或RINEX / DORIS 3.0数据进行实验，并且实验结果由同时尚未获得两种类型的数据。因此，我们在本文中评估了使用Rinex / Doris 3.0相位观察和星载GPS伪范围观测的模拟实时轨道确定能力。由于RINEX / DORIS 3.0伪距离观测的1公里的精度对于初始轨道不利，因此GPS伪范围用于该计算。但是，rinex / doris 3.0相位观察用于解决Hy2a卫星的实时轨道。我们的分析结果是：（1）由星载GPS伪范围计算的Hy2a卫星的三维（3D）定位精度为6.803米，符合初始轨道位置精度要求。当使用5-7阶拉格朗日插值方法来解决卫星速度时，可以满足初始轨道速度要求。 Hy2a卫星速度的3D-rms值小于0.500 m / s，表示满足初始速度精度要求。 （2）在卡尔曼滤波器收敛之后，与CNES精确轨道的比较协议在径向位置下显示比0.100米，3D总位置为0.373米，3D总速度为0.374mm / s的RM。结果表明，径向位置精度优于0.100米，并且可以满足一些HY2A高度应用。在本研究过程中，开发了一种基于FORTRAN的原型实时轨道确定系统RTO-DLEO（用于低地轨道轨道卫星的实时轨道测定软件）并用于分析。从13天的实时轨道确定的结果也验证了Rtodleo软件，并显示它是可靠的。

著录项

  • 来源
    《Advances in space research》 |2020年第7期|1700-1712|共13页
  • 作者

    Chongchong Zhou; Shiming Zhong; Bibo Peng; Jikun Ou; Jie Zhang; Runjing Chen;

  • 作者单位

    State Key Laboratory of Geodesy and Earth's Dynamics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences. No. 340 Xudong Road Wuhan 430077 China National Geodetic Observatory. Wuhan Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences No. 340 Xudong Road Wuhan 430077 China University of Chinese Academy of Sciences No. 19A Yuquan Road Beijing 100049 China;

    State Key Laboratory of Geodesy and Earth's Dynamics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences. No. 340 Xudong Road Wuhan 430077 China;

    State Key Laboratory of Geodesy and Earth's Dynamics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences. No. 340 Xudong Road Wuhan 430077 China National Geodetic Observatory. Wuhan Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences No. 340 Xudong Road Wuhan 430077 China;

    State Key Laboratory of Geodesy and Earth's Dynamics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences. No. 340 Xudong Road Wuhan 430077 China;

    State Key Laboratory of Geodesy and Earth's Dynamics Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences. No. 340 Xudong Road Wuhan 430077 China National Geodetic Observatory. Wuhan Innovation Academy for Precision Measurement Science and Technology Chinese Academy of Sciences No. 340 Xudong Road Wuhan 430077 China;

    School of Computer and Information Engineering Xiamen Institute of Technology No. 600 Ligong Road Jimei District Xiamen 361024 China;

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  • 正文语种 eng
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  • 关键词

    Real-time orbit determination of LEO satellites; RINEX/DORIS 3.0 phase data; Spaceborne GPS pseudo-range observations; Initial orbit; Accuracy; RTODLEO;

    机译：实时轨道测定Leo卫星;rinex / doris 3.0相位数据;星载GPS伪范围观测;初始轨道;准确性;Rtodleo.;

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