A Simple Method for Source Depth Estimation with Multi-path Time Delay in Deep Ocean

A method of source depth estimation based on the multi-path time delay difference is proposed. When the minimum time arrivals in all receiver depths are snapped to a certain time on time delay-depth plane, time delay arrivals of surface-bottom reflection and bottom-surface reflection intersect at th...

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Published inChinese physics letters Vol. 33; no. 12; pp. 86 - 90
Main Author 杨坤德 杨秋龙 郭晓乐 曹然
Format Journal Article
LanguageEnglish
Published 01.12.2016
Subjects
估计方法
反射时延
时间延迟
最小时间
深度估计
深海
简便
路径时延
Online AccessGet full text
ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/33/12/124302

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Abstract A method of source depth estimation based on the multi-path time delay difference is proposed. When the minimum time arrivals in all receiver depths are snapped to a certain time on time delay-depth plane, time delay arrivals of surface-bottom reflection and bottom-surface reflection intersect at the source depth. Two hydrophones deployed vertically with a certain interval are required at least. If the receiver depths are known, the pair of time delays can be used to estimate the source depth. With the proposed method the source depth can be estimated successfully in a moderate range in the deep ocean without complicated matched-field calculations in the simulations and experiments.
AbstractList A method of source depth estimation based on the multi-path time delay difference is proposed. When the minimum time arrivals in all receiver depths are snapped to a certain time on time delay-depth plane, time delay arrivals of surface-bottom reflection and bottom-surface reflection intersect at the source depth. Two hydrophones deployed vertically with a certain interval are required at least. If the receiver depths are known, the pair of time delays can be used to estimate the source depth. With the proposed method the source depth can be estimated successfully in a moderate range in the deep ocean without complicated matched-field calculations in the simulations and experiments.
Author 杨坤德 杨秋龙 郭晓乐 曹然
AuthorAffiliation Key Laboratory of Ocean Acoustics and Sensing （Ministry of Industry and Information Technology）, Northwestern Polytechnical University, Xi＇an 710072 School of Marine Science and Technology, Northwestern Polytechnical University, Xi＇an 710072
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CitedBy_id crossref_primary_10_1016_j_oceaneng_2023_114656
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Notes Kun-De Yang1,2, qiu-Long Yang1,2, Xiao-Le Guo1,2, Ran Cao1,2 （1.Key Laboratory of Ocean Acoustics and Sensing （Ministry of Industry and Information Technology）, Northwestern Polyteehnical University, Xi＇an 710072; 2.School of Marine Science and Technology, Northwestern Polytechnical University, Xi＇an 710072）
A method of source depth estimation based on the multi-path time delay difference is proposed. When the minimum time arrivals in all receiver depths are snapped to a certain time on time delay-depth plane, time delay arrivals of surface-bottom reflection and bottom-surface reflection intersect at the source depth. Two hydrophones deployed vertically with a certain interval are required at least. If the receiver depths are known, the pair of time delays can be used to estimate the source depth. With the proposed method the source depth can be estimated successfully in a moderate range in the deep ocean without complicated matched-field calculations in the simulations and experiments.
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SubjectTerms 估计方法
反射时延
时间延迟
最小时间
深度估计
深海
简便
路径时延
Title A Simple Method for Source Depth Estimation with Multi-path Time Delay in Deep Ocean
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