Sensitivity of the matched‐field source localization technique in shallow water to mismatch of geoacoustic parameters

1986 ◽  
Vol 80 (S1) ◽  
pp. S113-S113
Author(s):  
Donald R. Del Balzo ◽  
Christopher Feuillade ◽  
Mary M. Rowe
Keyword(s):  
Shallow Water ◽  
Source Localization ◽  
Field Source ◽  
Localization Technique

scholarly journals Broadband matched‐field source localization with a horizontal line array in shallow water

1995 ◽  
Vol 97 (5) ◽  
pp. 3291-3291
Author(s):  
W. S. Hodgkiss ◽  
J. J. Murray ◽  
K. H. Kim ◽  
G. L. D’Spain
Keyword(s):  
Shallow Water ◽  
Source Localization ◽  
Horizontal Line ◽  
Field Source ◽  
Line Array

scholarly journals Matched-field Source Localization with a Mobile Short Horizontal Linear Array in Offshore Shallow Water

2013 ◽  
Vol 38 (1) ◽  
pp. 105-113 ◽  
Author(s):  
Dexin Zhao ◽  
Zhiping Huang ◽  
Shaojing Su ◽  
Ting Li
Keyword(s):  
Shallow Water ◽  
Source Localization ◽  
Linear Array ◽  
Autonomous Underwater Vehicles ◽  
Field Source ◽  
Position Errors ◽  
Straight Line ◽  
Synthetic Test ◽  
Passive Source Localization ◽  
Localization Performance

Abstract Passive source localization in shallow water has always been an important and challenging problem. Implementing scientific research, surveying, and monitoring using a short, less than ten meter long, horizontal linear array has received considerable attention in the recent years. The short array can be conveniently placed on autonomous underwater vehicles and deployed for adaptive spatial sampling. However, it is usually difficult to obtain a sufficient spatial gain for localizing long-range sources due to its limited physical size. To address this problem, a localization approach is proposed which is based on matched-field processing of the likelihood of the passive source localization in shallow water, as well as inter-position processing for the improved localization performance and the enhanced stability of the estimation process. The ability of the proposed approach is examined through the two-dimensional synthetic test cases which involves ocean environmental mismatch and position errors of the short array. The presented results illustrate the localization performance for various source locations at different signal- to-noise ratios and demonstrate the build up over time of the positional parameters of the estimated source as the short array moves at a low speed along a straight line at a certain depth.

Statistical analysis of achievable resolution limit in the near field source localization context

2012 ◽  
Vol 92 (2) ◽  
pp. 547-552 ◽  
Author(s):  
Mohammed Nabil El Korso ◽  
Rémy Boyer ◽  
Alexandre Renaux ◽  
Sylvie Marcos
Keyword(s):  
Statistical Analysis ◽  
Source Localization ◽  
Near Field ◽  
Resolution Limit ◽  
Field Source
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