Publications
Fast deconvolution in a shallow water environment: Time reversal or equalisation?
Ben S. Cazzolato, Philip A. Nelson, Phillip F. Joseph, Richard J. Brind (2000)
ICSV7: Proceedings of the 7th International Congress of Sound and Vibration, Garmisch-Partenkirchen, GermanyAbstract:
A fast technique for deconvolution of signals in a multipath propagation environment using optimal inverse filters is compared against broadside beamforming and time reversal. A strategy for optimising the inverse filters is discussed. A shallow water test facility is used as the basis for evaluating the various focusing strategies for single and multiple receivers. A fast field model (OASES) of the facility is used to evaluate the technique numerically. Finally, simulations using real data collected from a scaled model underwater test tank are conducted to confirm that the technique is suitable for real systems.
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