MODELING THE SOUND FIELD RECEIVED BY A VERTICAL ARRAY IN AN ARCTIC WAVE-GUIDE

A narrow-band sound field excited by a point source in an arctic under water sound waveguide is modeled. The time correlation function of the received noiselike signal is considered for a situation when a vertic al receiving array separates one mode from the sound field of a point source. The case of an additive mix of signal and noise is also analyz ed. It is shown that a weak signal can be detected in the background o f intense noise for certain positions of the point sound receiver.