测控技术2013，Vol.32Issue(7)：45-48,56,5.
基于EMD分解重构的互相关时延估计方法
Cross-Correlation Delay Estimation Method Based on EMD Decomposition and Reconstruction Algorithm
路晓妹 1寇文珍 1段渭军1
作者信息
- 1. 西北工业大学电子信息学院,陕西西安710072
- 折叠
摘要
Abstract
Under the background of the application for anti-sniper acoustic detection positioning system,tosolve the problems of low accuracy of delay estimation and large relative errors which appears when using the common correlation method,IMF reconstruction and noise elimination are applied in the estimation of acoustic detection positioning system of TDOA(time delay of arrival).For the selection of IMF components in reconstruction,a selection method based on Pearson correlation coefficient is designed.A cross-correlation delay estimation method based on EMD decomposition and reconstruction algorithm is put forward by selecting IMF components for reconstructing and denoising,and combining with the cross-correlation time delay estimation method.The validity of this method is proved by simulation experiment on the actual collected acoustic signal.关键词
被动声定位技术/时延估计/EMD分解重构算法/皮尔逊相关系数Key words
passive acoustic positioning technology/ time delay estimation/ EMD decomposition and reconstruction algorithm/ Pearson correlation coefficient分类
信息技术与安全科学引用本文复制引用
路晓妹,寇文珍,段渭军..基于EMD分解重构的互相关时延估计方法[J].测控技术,2013,32(7):45-48,56,5.
