针对舰船轴频电场存在于1～7 Hz的频率范围且存在明显谐波成分的特点,将谐波簇自适应线谱增强技术运用到舰船轴频电场信号处理中.通过仿真研究确定了相关参数,对测试信号处理后,其线谱功率谱强度较附近连续谱增强了0.056μV/m,可见将该方法运用于电场轴频信号处理可以有效地抑制背景噪声.%Shaft-frequency electric field of ship exists in 1～7 Hz and it has obvious harmomc waves. For these characteristics, harmonic waves adaptive line enhancer technology was applied to signal processing of the shaft-frequency electric field of a ship. Correlative parameters were determined through simulation. This method was used in measurement signal. The power spectrum intensity of line spectrum increased by 0.056 μ v/m higher than continuous spectrum. It was proved that background noise can be restrained effectively in shaft-frequency electric field signal with this method.
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