噪声源信号的高阶谱分析  

Higher order spectral analysis of noise signal

作　　者：张然[1] 姜晓艳[1] 刘彦东[2] 

机构地区：[1]河北机电职业技术学院,河北邢台054000 [2]邢台市公路勘测设计处,河北邢台054000

出　　处：《舰船科学技术》2016年第14期61-63,共3页Ship Science and Technology

摘　　要：为实现船舶噪声干扰信号的分离,本文以某船舶噪声信号为研究对象,采用高阶谱分析技术对其进行特征分析。通过特征值排序方法以及协方差分析理论确定噪声主频率入射方向,并结合小波变换技术对其频率响应特性进行匹配,有效实现干扰信号的分离。In order to achieve the separation of ship noise interference signal,this paper takes a certain ship noise signal as the research object,using high order spectrum analysis technology to analyze its characteristics,the main frequency incident direction is then determined by using eigenvalue method and noise covariance analysis theory. The frequency response characteristics is then matched with the wavelet transform technology and the jamming signal is separated effectively.

关 键 词：船舶噪音 高阶谱 信号处理 小波变换 

分 类 号：U661.44[交通运输工程—船舶及航道工程]