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An algorithm for quantitatively modeling reflected ultrasonic bounded pulses and beams

机译:一种定量建模反射超声界面脉冲和光束的算法

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The study of the reflected acoustic waves plays an important role in our understanding of media. We provide an algorithm to propagate the ultrasonic bounded beam source and study its reflection from any horizontal and homogenous water-solid boundary. This algorithm implements a hybrid combination of the phase-advance wavefield continuation in the frequency domain and the complex analytic solution for the acoustic reflectivity. The peak amplitude of the specularly reflected beam is in agreement with the laboratory measured acoustic reflection from water-Aluminum and water-Copper alloy boundaries. The algorithm is able to model the observed critical reflection as well as the null in the reflected amplitude at the Rayleigh critical angle from the acoustic wave. This algorithm is a crucial tool to understand the full reflected wave from material immersed in water in any azimuthal or incidental angles. The software of this algorithm and acoustic reflectivity from both solid materials are provided. (C) 2017 Elsevier B.V. All rights reserved.
机译:对反射声波的研究在我们对媒体的理解中起着重要作用。我们提供一种算法来传播超声波有界波束源,并研究其与任何水平和均匀的水固有边界的反射。该算法实现了频域中的相位预先波场延续的混合组合,以及用于声反射率的复杂分析解决方案。镜面反射光束的峰值幅度与水 - 铝和水 - 铜合金边界的实验室测量的声学反射一致。该算法能够将观察到的临界反射和与声波的瑞利临界角处的反射幅度的零核模型。该算法是一种重要的工具,可以理解从浸没在水中的材料中的完全反射波以任何方位角或偶然的角度。提供了该算法的软件和来自两种固体材料的声学反射率。 (c)2017 Elsevier B.v.保留所有权利。

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