Acoustic tomography of the nonlinear parameter by a small number of transducers

作者：Burov V A^*; Evtukhov S N; Tkacheva A M; Rumyantseva O D

来源：Acoustical Physics, 2006, 52(6): 655-669.

DOI：10.1134/S1063771006060054

A wave approach to solving the problem of reconstructing the acoustic nonlinear parameter distribution by a simple transmitting-receiving system with broadband modulation of primary waves is proposed. The approach uses the effect of sound scattering by sound, which makes it possible to employ a complicated time processing of signals instead of spatial processing and, consequently, to reduce the number of transmitting and receiving transducers. The possibility of practical implementation of a two-dimensional tomographic scheme based on coherent correlation processing of broadband quasi-random signals at combination frequencies is analyzed. Results of model numerical experiments on reconstructing complicated spatial distributions of the nonlinear parameter are presented.

• 出版日期2006-12