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Orbit Determination Before Detect: Orbital Parameter Matched Filtering for Uncued Detection

机译:在检测之前确定轨道:用于无检测的轨道参数匹配滤波

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This paper presents a novel algorithm to incorporate orbital parameters into radar ambiguity function expressions by extending the standard ambiguity function to match Keplerian two-body orbits. A coherent orbital matched-filter will maximise a radar's sensitivity to objects in orbit, as well as provide rapid initial orbit determination from a single detection. This paper then shows how uncued detection searches can be practically achieved by incorporating radar parameters into the orbital search-space, especially for circular orbits. Simulated results are compared to results obtained from ephemeris data, showing that the orbital path determined by the proposed method, and the associated radar parameters that would be observed, match those derived from the ephemeris data.
机译:本文提出了一种新的算法,通过扩展标准歧义函数以匹配开普勒两体轨道,将轨道参数合并到雷达歧义函数表达式中。相干轨道匹配滤波器将使雷达对在轨物体的灵敏度最大化,并通过一次检测就可以快速确定初始轨道。然后,本文展示了如何通过将雷达参数纳入轨道搜索空间,尤其是圆形轨道,来实际实现无线索的搜索搜索。将模拟结果与从星历数据获得的结果进行比较,表明通过所提出的方法确定的轨道路径以及将要观测到的相关雷达参数与从星历数据中得出的参数相匹配。

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