Yaroshenko A. Acoustics fields in the inhomogenius hydroacoustiks waveguids

Dissertation is dedicated to the simulating the scalar fields of acoustic pressure and the vector fields of particle velocity. Pressure fields in cases of two abnormal profiles of sound velocity - anomaly of type of a bottom wave guide and synoptic anomaly of type of narrow top sound channel are calculated. The numerically-analytical solutions for hydroacoustics waveguides with essential variations of parameters on the line of the waveguide are developed. Waveguides with rigid graduated bottom, waveguides with intra-located cylindrical skew object are investigated in the thesis. The paper is devoted to simulation of signals propagation in the waveguides of the shallow water and to the analysis of dispersive distortions. The acoustic field in the waveguide is calculated, then, using inverse discrete Fourier transformation, the impulse responses are restored, and the convolution of a signal with the impulse response is performed.