Propagation of the Vector Sound Field in the Bottom-Reflected Zone in Deep Water

Abstract

The propagation properties of the vector sound field with a shallow receiver in the bottom-reflected zone of a shallow source in deep water are studied in this paper. Firstly, the properties of the sound rays arriving at the receiver position are studied. Secondly, theoretical analysis of the propagation property of the vector sound field is conducted by using the ray model. Thirdly, transmission losses of the sound pressure, the horizontal particle velocity and the vertical particle velocity are calculated by the RAM-PE model. The theoretical analysis and the simulation results show that the energy and the transmission losses of the horizontal particle velocity and the vertical particle velocity are closely related with the grazing angles of the eigenrays. The transmission loss difference between the vertical particle velocity and the horizontal particle velocity increases with the increase of the range from the source to the receiver, and satisfies Eq. (19) in this paper.