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基于小波能量谱的舰船磁异常检测算法

Zhonghua DAI,Suihua ZHOU,Shan SHAN

Journal of Detection & Control（2020）

Cited 2|Views1
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Abstract
针对低信噪比下舰船磁异常检测失效问题,提出基于小波能量谱的舰船磁异常检测算法.该算法根据磁异常信号小波能量谱特点,构造了能量检测特征量,设计了随背景动态变化的检测阈值,通过判断能量检测特征量多次大于检测阈值实现对磁异常信号的检测.仿真算例表明,基于小波能量谱的舰船磁异常实时检测算在低信噪比下能够有效完成检测,当信噪比为-4 dB时,检测概率达到96.7％,实时性较好.
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