Experiment Observation on Acoustic Forward Scattering for Underwater Moving Object Detection

被引：5

作者：

Lei Bo ^{[1
]}

Ma Yuan-Liang ^{[1
]}

Yang Kun-De ^{[1
]}

机构：

[1] Northwestern Polytech Univ, Inst Acoust Engn, Xian 710072, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2011年 / 28卷 / 03期

基金：

中国国家自然科学基金;

关键词：

TARGET;

D O I：

10.1088/0256-307X/28/3/034302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The problem of detecting an object in shallow water by observing changes in the acoustic field as the object passes between an acoustic source and receiver is addressed. A signal processing scheme based on forward scattering is proposed to detect the perturbed field in the presence of the moving object. The periodic LFM wideband signal is transmitted and a sudden change of field is acquired using a normalized median filter. The experimental results on the lake show that the proposed scheme is successful for the detection of a slowly moving object in the bistatic blind zone.

引用

页数：3