根据反射声波相位信息识别分层介质结构

doi:10.3969/j.issn.0255-8297.2013.03.008

Abstract

Abstract: This paper presents a method for classification of layered materials with unknown physical properties based on the phase-frequency characteristics of acoustic reflection coefficients. Layered structures under consideration include a single layer material, double-layered plates with harder and softer materials on the two sides respectively, and a sandwich structure with a harder material as the outer layers and a softer material in the middle. A set of criteria for differentiating the types of structure is given. Numerical simulation shows effectiveness of the method with a high rate of correct classification.

Key words: acoustic reflection, layered materials, phase features, classification

CLC Number:

O427.2

WANG Lu-xian1, WANG Shuo-zhong1, CHEN Yun-fei2, WANG Run-tian3, ZOU Ting-ting1. Classification of Layered Structures Using Phase Information of Reflected Sound[J]. Journal of Applied Sciences, 2013, 31(3): 266-270.

References

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Classification of Layered Structures Using Phase Information of Reflected Sound

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