Modeling of Pulse Signals in 3D Propagation Problems of Deep-Water Acoustics Based on the Modified Maslov's Canonical Operator

摘要

Formulae for an asymptotic solution of 3D problems of acoustical pulse signals propagation in the deep sea based on the modified Maslovs canonical operator are presented. The proposed formulae for acoustic pressure are applicable both in the regular case and in the situation when the receiver is located at a focal point of a family of rays. The asymptotics is compared with the solution computed using normal modes theory. It is shown that the derived formulae ensure very high precision of calculation of a pulse signal time series at the receiver point.