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Chris H. Harrison
Researcher at Centre for Maritime Research and Experimentation
Publications - 58
Citations - 990
Chris H. Harrison is an academic researcher from Centre for Maritime Research and Experimentation. The author has contributed to research in topics: Reverberation & Ambient noise level. The author has an hindex of 16, co-authored 58 publications receiving 941 citations.
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A passive fathometer technique for imaging seabed layering using ambient noise
TL;DR: In this paper, a passive acoustics method is presented that uses the ocean ambient noise field to determine water depth and seabed sub-bottom layering using a passive fathometer.
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Closed-form expressions for ocean reverberation and signal excess with mode stripping and Lambert’s law
TL;DR: Closed-form expressions for two-way propagation and reverberation in variable depth ducts are derived for isovelocity water by using ray invariants and acoustic flux and there are interesting and sometimes surprising behavior when the propagation obeys mode-stripping whilst the scattering obeys Lambert's law.
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Formulas for ambient noise level and coherence
TL;DR: In this article, the authors investigated the various approximations commonly made in noise and noise coherence models and showed that in many cases a simple ray approach can produce the same answers as full wave treatments such as RANDI•2.
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Adaptive passive fathometer processing
Martin Siderius,Heechun Song,Peter Gerstoft,William S. Hodgkiss,Paul Hursky,Chris H. Harrison +5 more
TL;DR: Adaptive methods for this process are described and applied to several data sets to demonstrate improvements possible as compared to conventional processing.
Journal ArticleDOI
Passive fathometer processing
TL;DR: It has been demonstrated that a passive array can be used as a fathometer and the output corresponds to the reflection sequence and it is possible to extract seabed layering.