Coherent recombination of sediment borne and water path acoustic signals

Both the water layer and bottom sediment act as transmission media for acoustic signals. In April 1981, the Marine Physical Laboratory (MPL) conducted an experiment investigating acoustic signal propagation in thick sediments. In this paper, the coherence between sediment borne and water path acoustic signals will be discussed. Data from the Monterey Fan experiment will be presented along with comments regarding the viability of coherently recombining the total acoustic field which is available at the receiving array.