This paper studies the detection of hovering helicopter at sea by mean of airborne early warning(AEW) radar.
提出了依托机载预警（ AEW） 雷达利用悬停直升机旋翼回波信号来探测海上悬停直升机目标的方案。
The key task of airborne early warning (AEW) radar is to find and track targets in a complicated background, so the suppression of interference and clutter in radar system is of great importance.
机载预警雷达的核心任务就是在复杂的背景环境中发现并跟踪目标，因此，抑制杂波和干扰就是关键。
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