| 曾向阳,陈克安.室内指向性声源的声场数值模拟[J].声学技术,2001,(2):68~70 |
| 室内指向性声源的声场数值模拟 |
| On the numerical simulation of acoustical field in rooms with directional sources |
| 投稿时间：1999-12-06 修订日期：2000-04-28 |
| DOI： |
| 中文关键词: 室内声场 指向性声源 数值模拟 |
| 英文关键词: acoustical field in rooms directional source numerical simulation |
| 基金项目:国家自然科学基金资助;西北工业大学博士创新基金资助 |
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| 中文摘要: |
| 为了利用计算机对室内指向性声源的声场进行模拟,文中将声线跟踪法、虚源法和Monte Carlo法相结合,编制了一种声场数值模拟仿真程序。该程序能模拟有(或无)指向性声源在室内给定点的声压级等参数值,还能计算出该点的脉冲响应函数。作为例子,分别利用该法和声压叠加法研究了点源和偶极子声源的指向性。 |
| 英文摘要: |
| In this paper, an algorithm which combines the ray tracing method,the image method and the Monte Carlo method is designed to calculate the acoustical field in rooms with directional sources. A corresponding computer program is designed and some parameters,such as the pressure level and the impulse response,can be calculated by the program . In the two examples, the pressure levels are calculated and the results are compared with those calculated by the sound pressure superposition method. |
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