A Study of the Underwater Sound Field Scattered by Two-Dimensional Bodies in Shallow Water

Abstract

In this paper, a research about scattering problem by two-dimensional bodies in shallow water is reported. Most studies of under water sound propagation have investigated at relatively long ranges, because they have been carried out with a view-point of underwater sound technology as a means of transmitting information. However, the sound field in shallow water at short ranges becomes more complicated than the field at long ranges. This paper presents the theory and the numerical calculating method of sound scattering in shallow water at relatively short ranges. In order to investigate the effect of water-surface and sea-bottom on the scattering character, some numerical results are compared with the results in free sound field.