Title :
Acoustic wave time reversal self-focusing in underwater waveguide
Author :
Zhang, Bi Xing ; Wang, Chenghao ; Lu, Ming Hui ; Jiang, Yong Liang
Author_Institution :
Inst. of Acoust., Acad. Sinica, Beijing, China
Abstract :
In this paper, Acoustic wave time reversal self-focusing in underwater waveguide is studied. The acoustic wave time reversal is theoretically and experimentally investigated in a half-infinite fluid medium and a shallow fluid layer placed on a hard half-infinite solid medium, respectively. The ray approach is adopted to study the acoustic field in theory, and the ultrasonic experiment has been carried out in laboratory to model the underwater waveguide. The quantitative and comparative analyses between the experimental and theoretical results are emphatically carried out. Experiment results are consistent to theoretical ones
Keywords :
acoustic field; acoustic focusing; acoustic waveguides; nonlinear acoustics; self-focusing; underwater sound; acoustic field; acoustic wave time reversal self-focusing; half-infinite fluid medium; half-infinite solid medium; ray acoustics; shallow fluid layer; underwater waveguide; Acoustic distortion; Acoustic reflection; Acoustic waveguides; Acoustic waves; Laboratories; Liquid waveguides; Optical reflection; Solid modeling; Underwater acoustics; Waveguide theory;
Conference_Titel :
Ultrasonics Symposium, 2000 IEEE
Conference_Location :
San Juan
Print_ISBN :
0-7803-6365-5
DOI :
10.1109/ULTSYM.2000.922673
