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An overview of matched field methods in ocean acoustics

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3 Author(s)
Baggeroer, A.B. ; Dept. of Ocean Eng., MIT, Cambridge, MA, USA ; Kuperman, W.A. ; Mikhalevsky, P.N.

A short historical overview of matched-field processing (MFP) is followed by background material in both ocean acoustics and array processing needed for MFP. Specific algorithms involving both quadratic and adaptive methods are then introduced. The results of mismatch studies and several algorithms designed to be relatively robust against mismatch are discussed. The use of simulated MFP for range, depth and bearing location is examined, using data from a towed array that has been tilted to produce an effective vertical aperture. Several experiments using MFP are reviewed. One successfully demonstrated MFP at megameter ranges; this has important consequences for experiments in global tomography. Some unique applications of MFP, including how it can exploit ocean inhomogeneities and make tomographic measurements of environmental parameters, are considered

Published in:

Oceanic Engineering, IEEE Journal of  (Volume:18 ,  Issue: 4 )