Frequency invariability of acoustic field and passive source range estimation in shallow water

被引：0

作者：

ZHOU ShiHong ^{[1
]}

QI YuBo ^{[1
]}

REN Yun ^{[1
]}

机构：

[1] State Key Laboratory of Acoustics,Institute of Acoustics,Chinese Academy of Sciences

来源：

Science China(Physics,Mechanics & Astronomy) | 2014年 / 02期

基金：

中国国家自然科学基金;

关键词：

frequency invariability; warping transform; autocorrelation function; passive range estimation; single hydrophone;

D O I：

暂无

中图分类号：

O422.2 [声场];

学科分类号：

070206 ; 082403 ;

摘要：

The frequency invariability of the warped modal signal and the warped signal autocorrelation function in shallow water is discussed.A method is proposed for passive source-range estimation based on the frequency invariability and warping transform of signal autocorrelation function received by a single hydrophone in a range-independent or weak range-dependent shallow water environment.In the method,a guided source with a known range is employed to provide the crucial and relative invariant scaled features.The experimental data in shallow water with an iso-speed profile and a fluctuated thermocline are used to verify this approach.The relative errors of the source range estimation are basically less than 10%.

引用

页码：225 / 232

页数：8