| 刘彦琼,岳瑞永,田作喜,韩晶.基于谐波簇自适应线谱增强器的舰船轴频电场检测[J].装备环境工程,2011,8(2):29-32. LIU Yan-qiong,YUE Rui-yong,TIAN Zuo-xi,HAN Jing.Ship Shaft-frequency Electric Field Testing Based on Harmonic Waves Adaptive Line Enhancer[J].Equipment Environmental Engineering,2011,8(2):29-32. |
| 基于谐波簇自适应线谱增强器的舰船轴频电场检测 |
| Ship Shaft-frequency Electric Field Testing Based on Harmonic Waves Adaptive Line Enhancer |
| 投稿时间：2010-08-20 修订日期：2011-04-15 |
| DOI： |
| 中文关键词: 轴频电场 谐波簇 自适线谱增强 |
| 英文关键词:Shaft-frequency electric field harmonic waves adaptive line enhancer |
| 基金项目:水下测控技术国防科技重点实验室项目 （9140C260304080C26） |
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| 中文摘要: |
| 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0.056 μV/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。 |
| 英文摘要: |
| Shaft-frequency electric field of ship exists in 1~7 Hz and it has obvious harmonic 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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