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APCHI TECHNIQUE FOR RAPIDLY AND ACCURATELY PREDICTING MULTI-RESTRICTION SATELLITE VISIBILITY

机译:快速准确地预测多限制卫星可见性的APCHI技术

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Multi-Restriction Satellite Visibility Prediction (MRSVP) problem is of great significance in space missions such as Earth observation and space surveillance. This paper presents a numerical method to rapidly and accurately compute site-satellite and satellite-satellite in-view periods, taking multiple restrictions into account. A novel curve fitting method named Adaptive Piecewise Cubic Hermite Interpolation (APCHI) technique is introduced to approximate waveforms of visibility functions derived for corresponding restrictions, featured with autonomous searching for the best interpolation points to guarantee accuracy. Test results obtained from this approach are almost the same with those from conventional trajectory check method. However, this new approach reduces more than 90% of computation time. As this numerical method can apply to all kinds of orbit types and propagators, it proves to be a good choice for satellite constellation design and mission planning.
机译:多限制卫星可见度预测(MRSVP)问题在地球观测和空间监测等太空任务中具有重要意义。本文介绍了一种快速准确地计算的网站卫星和卫星视网区的数值方法,考虑了多次限制。引入了一种名为Adapive分段立方Hermite插值(APCHI)技术的新型曲线拟合方法,以实现导出用于相应限制的可见性函数的波形,以自主搜索为保证准确性的最佳插值点。从这种方法获得的测试结果与传统轨迹检查方法的测试结果几乎相同。但是,这种新方法减少了超过90%的计算时间。由于这种数值方法可以应用于各种轨道类型和传播者,因此证明是卫星星座设计和任务规划的好选择。

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