针对现有船舶轴频电场检测算法计算量大等问题,提出一种基于相关分析的船舶轴频电场实时检测算法.该算法利用海洋环境电场和船舶轴频电场水平两分量的相关性差异,提取检测电场信号水平两分量的相关系数为特征,采用滑动检测方法对船舶轴频电场信号进行实时检测.实测数据的验证结果表明:该算法在高信噪比和低信噪比情况下均能较好地检测到目标信号,且不会出现虚警,可用于引信对目标的检测.%To solve the problem of huge calculation of the existing algorithms,a realtime detection algorithm for ship shaftrate electric field signal based on correlation analysis was put forward according to the difference between correlation of the two horizontal components of both ocean environmental electric field and ship shaftrate electric field. The two horizontal components correlation coefficient of detecting signals was extracted as eigenvalue and sliding detection method was used in this algorithm. The actual measuring results showed that the algorithm could effectively detect the target signal at both high and low SNR situations without the false alarm. The algorithm could be used e for fuze target detection.
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