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| 基于11/2维谱的舰船轴频电场线谱提取 | |
| 引用本文： | 李松,卢新城,李俊,龚沈光.基于11/2维谱的舰船轴频电场线谱提取[J].武汉理工大学学报(交通科学与工程版),2008,32(5). |
| 作者姓名： | 李松 卢新城 李俊 龚沈光 |
| 作者单位： | 1. 海军工程大学兵器工程系,武汉,430033;海军装备研究院,北京,100073 2. 中国人民解放军92609部队,北京,100077 3. 海军工程大学兵器工程系,武汉,430033 |
| 摘 要： | 11/2维谱可加强成整数倍谐波信号的基频分量,抑制高斯有色噪声及对称分布的噪声,剔除非二次相位耦合的谐波分量,这些特性对提取舰船轴频电场线谱十分有利.采用该方法对船模产,生的轴频电场实测数据进行了处理,实验表明它可以有效地将微弱的轴频电场信号从背景噪声中分离出来. |
| 关 键 词： | 11/2维谱 舰船 轴频电场 线谱 |
Extraction of Line Spectrum of the Shaft Rate Electric Field of a Ship Based on the 11/2-Dimension Spectrum |
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| Li Song,Lu Xincheng,Li Jun,Gong Shenguang.Extraction of Line Spectrum of the Shaft Rate Electric Field of a Ship Based on the 11/2-Dimension Spectrum[J].journal of wuhan university of technology(transportation science&engineering),2008,32(5). | |
| Authors: | Li Song Lu Xincheng Li Jun Gong Shenguang |
| Institution: | Dept.of Weaponary Eng.;Naval University of Engineering;Wuhan 430033;Naval Academy of Armament;Beijing 100073;92609 Unit;PLA;Beijing 100077 |
| Abstract: | This paper presents a 112-dimension spectrum-based method fortesting the shaft-rate electric field of a ship.By means of the spectrum,the fundamental frequency component of the harmonic signals can be enhanced.Gaussian color noise and symmetrical distribution noise can be canceled,and non-quadratic phase coupling harmonic components can be eliminated.These properties are beneficial to the extraction of line spectrum of the shaft-rate electric field of a ship.Experimental and practical results show that the ... |
| Keywords: | 112-dimension spectrum ships shaft-rate electric field line spectrum |
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