FILTERING OF SPATIAL FLUCTUATIONS OF THE AMPLITUDE OF ACOUSTIC-SIGNALS REFLECTED FROM THE OCEAN-BOTTOM

The results of field experiments devoted to the mapping of parameters of acoustic signals reflected from the ocean bottom are presented. A t wo-stage procedure of filtering the reflected field, revealing its int ermediate-scale spatial variation, is proposed. The advantages of a pl anar multielement antenna array over a single receiver are noted. Reco mmendations on the bottom-mapping technique are given. The main techni cal characteristics of the attendant equipment are presented.