Directive sources in acoustic discrete-time domain simulations based on directivity diagrams.
Directive sources in acoustic discrete-time domain simulations based on directivity diagrams.
复制标题
基于方向性图的声学离散时域模拟中的方向源。
DOI：
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发表时间：
2007
影响因子：
2.4
通讯作者：
B. Pueo
中科院分区：
文献类型：
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作者：
J. Escolano;José J. López;B. Pueo
离散时域方法为求解初边值问题提供了一种简单而灵活的方法。关于这种方法中的源，只能考虑单极子或偶极子。然而，在许多问题，如室内声学，辐射的现实来源是方向相关的和他们的指向性模式有一个明确的影响，总的声场。在这封信中，提出了一种方法来综合的源的方向性，特别是在知识的情况下，只是基于离散值的方向性图。一些例子已经进行，以显示所提出的方法的行为和精度。
Discrete-time domain methods provide a simple and flexible way to solve initial boundary value problems. With regard to the sources in such methods, only monopoles or dipoles can be considered. However, in many problems such as room acoustics, the radiation of realistic sources is directional-dependent and their directivity patterns have a clear influence on the total sound field. In this letter, a method to synthesize the directivity of sources is proposed, especially in cases where the knowledge is only based on discrete values of the directivity diagram. Some examples have been carried out in order to show the behavior and accuracy of the proposed method.