摘要
利用Bridge乘积定理推导出线列阵组合圆周阵声源的远场指向性函数,采用数值方法对声源的指向性进行仿真分析,并与线列阵及点源均匀圆周阵声源的远场指向性进行比较。结果表明,在相同指向性要求下,线列阵组合圆周阵声源比线列阵及点源均匀圆周阵所构成声源的指向性都好,更有利于声源的小型化。
The far field directivity function of line array combination circular array source is derived by applying Bridge product theorem. Numerical method is used for the simulation analysis of the sound source directivity. The result is compared with that of the far sound field directivity of linear array and uniform circumferential array of point source. Results show that under the same directional requirement, the directivity of line array combination circular array source is better than that of linear array and uniform circumferential array of point source. This is more useful for the miniaturization of the sound source.
出处
《西安邮电大学学报》
2016年第1期63-67,共5页
Journal of Xi’an University of Posts and Telecommunications
基金
国家自然科学基金资助项目(40974078)
关键词
线列阵组合圆周阵声源
线列阵
点源均匀圆周阵
指向性
line array combination circumferential array sound source, line array, uniform circumferentialarray of point source,directivity
