Uncertainties in GPS-based operational orbit determination: A case study of the Sentinel-1 and Sentinel-2 satellites

Kuchynka P.; Martin Serrano M. A.; Merz K.; Siminski J.

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Uncertainties in GPS-based operational orbit determination: A case study of the Sentinel-1 and Sentinel-2 satellites

机译：基于GPS的操作轨道测定的不确定性：Sentinel-1和Sentinel-2卫星的案例研究

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The European Space Operations Centre currently operates five Copernicus Sentinel satellites in the framework of Europe's Copernicus Earth observation programme. The routine operations rely on a daily orbit determination, carried out on-ground, consisting in a least-squares fit of a dynamical model to GPS navigation solutions generated on-board. The purpose of this paper is the estimation of realistic uncertainties on this daily determined state vector. By comparison with the orbit derived by Precise Orbit Determination, we estimate the 1-sigma errors at approximately 0.5m and 0.5mm/s. Non-stationary errors in the navigation solution preclude their characterisation with a constant covariance matrix. Error whitening is achieved by decreasing the signal-to-noise ratio in the errors through the use of underestimated weights on the data. The approach keeps the errors on the derived state vector unchanged and allows the covariance on the state vector to become realistic.

机译：欧洲空间运营中心目前在欧洲的哥白尼地球观察计划的框架内运营五个哥白尼哨兵卫星。常规操作依赖于地面执行的每日轨道确定，以在板上生成的GPS导航解决方案的最小二乘拟合。本文的目的是估计每日确定的国家载体的现实不确定性。通过与精确轨道测定所衍生的轨道的比较，我们估计大约0.5米和0.5mm / s的1-sigma误差。导航解决方案中的非静止错误妨碍了它们的表征与恒定的协方差矩阵。通过在数据上使用低估的权重来降低错误中的信噪比来实现误差美白。该方法保持派生状态向量上的错误不变，并允许在状态向量上的协方差变得逼真。

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来源
《The Aeronautical Journal》 |2020年第1276期|888-901|共14页
作者
Kuchynka P.; Martin Serrano M. A.; Merz K.; Siminski J.;
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作者单位

European Space Operat Ctr ESOC GMV INSYEN Flight Dynam Div Darmstadt Germany;

European Space Operat Ctr ESOC SCISYS Flight Dynam Div Darmstadt Germany;

European Space Operat Ctr ESOC ESA Space Debris Off Darmstadt Germany;

European Space Operat Ctr ESOC IMS Space Debris Off Darmstadt Germany;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Copernicus; Sentinel; GPS; Orbit Determination; Realistic Covariance; Space Debris;

机译：Copernicus;Sentinel;GPS;轨道确定;现实协方差;空间碎片;

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1. GPS-Based Real-Time Orbit Determination of Low Earth Orbit Satellites Using Robust Unscented Kalman Filter [J] . Karslioglu Mahmut Onur, Erdogan Eren, Pamuk Onur Journal of aerospace engineering . 2017,第6期

机译：基于GPS的鲁棒无味卡尔曼滤波器确定低地球轨道卫星的实时轨道
2. GPS-based onboard real-time orbit determination for leo satellites using consider Kalman filter [J] . Yang Yang, Xiaokui Yue, Andrew G. Dempster IEEE Transactions on Aerospace and Electronic Systems . 2016,第2期

机译：考虑卡尔曼滤波器的基于GPS的狮子座星载实时轨道确定
3. An interactive program for GPS-based dynamic orbit determination of small satellites [J] . Karslioglu MO Computers & geosciences . 2005,第3期

机译：基于GPS的小卫星动态轨道确定的交互式程序
4. GPS-Based Precise Relative Orbit Determination for LEO Satellites Using GPS Double- Differenced Carrier Phases [C] . Zhigui Kang, Byron Tapley, Sinivas Bettadpur, International technical meeting of the Satellite Division of the Institute of Navigation . 2013

机译：基于GPS双差分载波相位的LEO卫星精确GPS相对轨道确定
5. GPS-based precision orbit determination for low altitude goedetic satellites [D] . Davis, George William 1996

机译：基于GPS的低空歌剧卫星精确轨道确定
6. Experimental Study on the Precise Orbit Determination of the BeiDou Navigation Satellite System [O] . Lina He, Maorong Ge, Jiexian Wang, 2013

机译：北斗导航卫星系统精确定轨的实验研究
7. Evaluation Results of GPS-based Precise Orbit Determination for Earth Observation Satellite in Near Real-time Operation [O] . Kyohei Akiyama, Hideki Masuda, Sachiyo Kasho, 2018

机译：基于GPS的精确轨道测定在近实时操作中的GPS基于GPS的精确轨道测定结果
8. GPS-Based Precision Orbit Determination for a New Era of Altimeter Satellites: Jason-1 and ICESat [R] . Luthcke, Scott B., Rowlands, David D., Lemoine, Frank G., 2003

机译：基于Gps的精确轨道确定新的高度计卫星时代：Jason-1和ICEsat

Uncertainties in GPS-based operational orbit determination: A case study of the Sentinel-1 and Sentinel-2 satellites

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