详细分析了悬停直升机旋翼回波的特性，提出了一种多目标假设与匹配检验相结合的悬停直升机检测新算法。理论推导和仿真实验表明：该算法在信噪比较低的情况下依然有效。

This paper analyzes the characteristics of the echos from a hovering helicopter.A detection method of the hovering helicopter using multi suppose and matching verification is proposed.The theoretics and experiments demonstrated the effectiveness of the method even at a low SNR.

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