Inverting acoustic communication signals for the sound speed profile
2006 (English)In: Journal of the Acoustical Society of America, ISSN 1520-8524, Vol. 120, no 3, 1347--1355 p.Article in journal (Refereed) Published
Given data from a shallow-water acoustic communication experiment, the acoustic environmental parameters influencing the sound propagation conditions are estimated, particularly the sound speed profile. This inverse problem is solved using a differential evolution algorithm with an objective function measuring the mismatch between observed and modeled impulse response estimates. The model wave field is computed by a hybrid ray-trace plane-wave method, and its accuracy is assessed in a related range-independent case using solutions obtained with a full-field transform integral method. The environmental parameters obtained by inversion reduce the mismatch between the modeled and the observed impulse response estimates, compared to the mismatch using a sound speed profile measured two days before the experiment. The resulting environmental model is used to investigate alternative source-receiver configurations and to predict the optimal transmitter depth.
Place, publisher, year, edition, pages
2006. Vol. 120, no 3, 1347--1355 p.
Acoustic signal processing; Computer simulation; Environmental impact; Evolutionary algorithms; Inverse problems; Parameter estimation; Problem solving; Wave propagation; Acoustic communication signals; Field transform integral method; Sound propagation; Sound speed profile; Acoustic fields; water; accuracy; acoustics; algorithm; article; environmental parameters; evolution; priority journal; sound; sound detection; velocity
Fluid Mechanics and Acoustics
IdentifiersURN: urn:nbn:se:kth:diva-7792DOI: 10.1121/1.2234851ISI: 000240474100021ScopusID: 2-s2.0-33748527517OAI: oai:DiVA.org:kth-7792DiVA: diva2:12920
QC 201008192007-12-102007-12-102010-08-19Bibliographically approved