基于偏微分方程的光可视化声场插值方法

2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) Pub Date : 2014-07-14 DOI:10.1109/ICASSP.2014.6854501

K. Yatabe, Yasuhiro Oikawa

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引用次数: 11

摘要

理解声场行为的有效方法是将其形象化。光学测量方法是一个合适的选择，因为它可以实现非接触式无损测量。在测量声场后，为了实现平滑的可视化，需要对数据进行插值。然而，传统的插值方法不能提供有物理意义的结果，特别是当测量条件引起莫尔效应时。本文提出了一种基于Kirchhoff-Helmholtz积分方程的光学声场插值方法。

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PDE-based interpolation method for optically visualized sound field

An effective way to understand the behavior of a sound field is to visualize it. An optical measurement method is a suitable option for this as it enables contactless non-destructive measurement. After measuring a sound field, interpolation of the data is necessary for a smooth visualization. However, conventional interpolation methods cannot provide a physically meaningful result especially when the condition of the measurement causes moiré effect. In this paper, a special interpolation method for an optically visualized sound field based on the Kirchhoff-Helmholtz integral equation is proposed.

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来源期刊

2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

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