Nonlinear time-warping made simple: A step-by-step tutorial on underwater acoustic modal separation with a single hydrophone

Classical ocean acoustic experiments involve the use of synchronized arrays of sensors. However, the need to cover large areas and/or the use of small robotic platforms has evoked interest in single-hydrophone processing methods for localizing a source or characterizing the propagation environment....

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2020-03, Vol.147 (3), p.1897-1926
Main Authors: Bonnel, Julien, Thode, Aaron, Wright, Dana, Chapman, Ross
Format: Article
Language:English
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Summary:Classical ocean acoustic experiments involve the use of synchronized arrays of sensors. However, the need to cover large areas and/or the use of small robotic platforms has evoked interest in single-hydrophone processing methods for localizing a source or characterizing the propagation environment. One such processing method is “warping,” a non-linear, physics-based signal processing tool dedicated to decomposing multipath features of low-frequency transient signals (frequency f 
ISSN:0001-4966
1520-8524
DOI:10.1121/10.0000937