| 基于谐波簇自适应线谱增强器的舰船轴频电场检测 |
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| 引用本文： | 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. |
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| 作者姓名： | 刘彦琼 岳瑞永 田作喜 韩晶 |
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| 作者单位： | 中国船舶重工集团公司第七六○研究所,辽宁,大连,116013 |
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| 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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| 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0.056μV/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.
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| 关 键 词： | 轴频电场 谐波簇 自适线谱增强 |
| 收稿时间： | 2010/8/20 0:00:00 |
| 修稿时间： | 2011/4/15 0:00:00 |
Ship Shaft-frequency Electric Field Testing Based on Harmonic Waves Adaptive Line Enhancer |
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| LIU Yan-qiong,YUE Rui-yong,TIAN Zuo-xi and HAN Jing.Ship Shaft-frequency Electric Field Testing Based on Harmonic Waves Adaptive Line Enhancer[J].Equipment Environmental Engineering,2011,8(2):29-32. |
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| Authors: | LIU Yan-qiong YUE Rui-yong TIAN Zuo-xi and HAN Jing |
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| Institution: | LIU Yan-qiong,YUE Rui-yong,TIAN Zuo-xi,HAN Jing(No.760 Research Institute of CSIC,Dalian 116013,China) |
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| Abstract: | 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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| Keywords: | Shaft-frequency electric field harmonic waves adaptive line enhancer |
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