Time Reversal Self-Focusing in a Solid-Plate Waveguide
ZHANG Bi-Xing, WU Hao, WANG Cheng-Hao
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080
Time Reversal Self-Focusing in a Solid-Plate Waveguide
ZHANG Bi-Xing;WU Hao;WANG Cheng-Hao
Institute of Acoustics, Chinese Academy of Sciences, Beijing 100080
关键词 ：
43.20.+g ,
43.40.+s ,
43.60.+d
Abstract ： Acoustical self-adaptive focusing in a solid-plate waveguide is theoretically and experimentally studied. The multi-path effect exists in the solid plate. A pulse will be widened into a pulsed train and the waveform is distorted. The time-reversal mirrors are applied to study the self-adaptive focusing. The time-reversal effect can be characterized by the focusing gain and the ratio of the principal to the second lobe. It is found theoretically and experimentally that the time reversal mirrors can compensate automatically for the waveform distortion caused by the multi-path effect.
Key words ：
43.20.+g
43.40.+s
43.60.+d
出版日期: 2004-02-01
:
43.20.+g
(General linear acoustics)
43.40.+s
(Structural acoustics and vibration)
43.60.+d
(Acoustic signal processing)
引用本文:
ZHANG Bi-Xing;WU Hao;WANG Cheng-Hao. Time Reversal Self-Focusing in a Solid-Plate Waveguide[J]. 中国物理快报, 2004, 21(2): 337-340.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I2/337
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2004, Vol. 21 
