A GNC simulation of a far range approach towards a target in geostationary orbit
A GNC simulation of a far range approach towards a target in geostationary orbit
复制标题
远距离接近地球静止轨道目标的 GNC 模拟
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
R. Kahle
中科院分区：
文献类型：
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作者：
S. Spiridonova;R. Kahle
本文介绍了作为德国航天中心/全球航天中心为未来近地球静止轨道在轨服务任务进行的可行性分析的一部分的全球导航卫星系统模拟。该仿真解决了从几公里到几百米的远距离方法，其中包括基于模拟光学测量的相对轨道确定，以及用于相对轨迹控制的自主机动规划。在不同的初始条件下进行了100次模拟运行，这些初始条件是基于在接近开始之前的预期绝对轨道确定误差。编队的安全性得到了保证，因为服务卫星永远不会进入目标航天器周围预定义的防撞区域。
仿真结果表明，基于光学测量的低成本远距离方法是可行的，可以安全过渡到中程传感器。本文的结果以及所提出的GNC算法本身可以在未来的近地球静止轨道在轨服务任务中找到应用。
This paper describes a GNC simulation as part of a feasibility analysis conducted by DLR/GSOC for future on-orbit servicing missions in near-geostationary orbit. The simulation addresses a far-range approach from several kilometers down to a few hundred meters, which includes relative orbit determination based on simulated optical measurements, and autonomous maneuver planning for relative trajectory control. One hundred simulation runs are performed with varying initial conditions based on the expected absolute orbit determination errors prior to the approach initiation. The safety of the formation is granted, as the servicer satellite never enters a pre-defined collision-avoidance area around the target spacecraft.
The results of the simulation show that a low-cost far range approach based on optical measurements is feasible up to a safe transition to a mid-range sensor. The results of the paper as well as the proposed GNC algorithm itself can find applications in future on-orbit servicing missions in near-geostationary orbit.