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Dynamically Tracking Maneuvering Spacecraft with a Globally-Distributed, Heterogeneous Wireless Sensor Network

机译:使用全球分布的异构无线传感器网络动态跟踪机动航天器

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This work presents an adaptive, information-based approach to dynamic sensor network management to track multiple maneuvering satellites with a diversely populated Space Object Surveillance and Identification network. Previous sensor tasking strategies, which rely on traditional orbit determination methods, will often fail when attempting to track maneuvering targets. The proposed method integrates a Multiple-Model Adaptive Un-scented Kalman Filter, a Largest Lyapunov Exponent approximation metric, and either Fisher or Shannon Information Gain to prioritize target spacecraft and task sensors. The algorithm must manage a globally distributed network of ground and space-based radar and electro-optical sensors. The sensor network must monitor a constellation of potentially maneuvering spacecraft that span all inclinations and altitudes up to geosynchronous orbit. The results show that Multiple-Model Adaptive Estimation coupled with information gain metrics can effectively task a diverse network of sensors to track multiple maneuvering spacecraft, while simultaneously monitoring a large number of non-maneuvering objects.
机译:这项工作提出了一种基于信息的自适应方法,用于动态传感器网络管理,以利用人口稠密的空间物体监视和识别网络跟踪多个机动卫星。依靠传统轨道确定方法的以前的传感器任务分配策略在尝试跟踪机动目标时通常会失败。所提出的方法集成了多模型自适应无味卡尔曼滤波器,最大的Lyapunov指数逼近度度量以及Fisher或Shannon信息增益,以对目标航天器和任务传感器进行优先级排序。该算法必须管理地面和天基雷达以及电光传感器的全球分布式网络。传感器网络必须监视可能机动的星座,这些星座跨越所有倾角和高度,直至地球同步轨道。结果表明,多模型自适应估计与信息增益度量相结合,可以有效地利用各种传感器网络来跟踪多个机动航天器,同时监视大量非机动物体。

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