系统可工作于两种模式：恒星目标检测定位模式和运动空间目标检测跟踪模式。

This system can work in two modes: fixed star detection mode and moving space target tracking mode.

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因此，目标反射信号的检测和提取是个难点，也是无源探测定位的关键技术之一。

So, the detection and extraction of signals reflected by the target are difficulties and the key technology of passive tracking location.

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