Applications of source localization by waveguide invariant theory during the ASIAEX sea tests

Applications of source localization in range and azimuth with minimum environmental information have been investigated by using a sample data set from the ASIAEX vertical and horizontal arrays. Source localization by waveguide invariant theory has been successfully demonstrated at the ASIAEX experim...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2002-11, Vol.112 (5_Supplement), p.2451-2451
Main Authors: Turgut, Altan, Wolf, Stephen, Pasewark, Bruce, Orr, Marshall, Lynch, James
Format: Article
Language:English
Online Access:Get full text
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Summary:Applications of source localization in range and azimuth with minimum environmental information have been investigated by using a sample data set from the ASIAEX vertical and horizontal arrays. Source localization by waveguide invariant theory has been successfully demonstrated at the ASIAEX experimental site by using broadband (50–200 Hz and 240–260 Hz) signals transmitted from a towed J-15 source. Range and bearing of both J-15 transducer and other surface ships in the vicinity have been successfully identified using a reference signal from the J-15 source at a known range. Accuracy of the localization has been also investigated for both adiabatic and strongly range-dependent environments. It has been shown that, when nonlinear internal waves are not present, the assumption of adiabatic propagation is sufficient for the accurate localization of sources from 0–10 km ranges at the experimental site. [Work supported by ONR.]
ISSN:0001-4966
1520-8524
DOI:10.1121/1.4780095