【作者】 程章； 许学忠； 董明荣；

【Author】 CHENG Zhang;XU Xue-zhong;DONG Ming-rong;Northwest Institute of Nuclear Technology;

【机构】 西北核技术研究所； 西北工业大学航海学院环境工程系；

【摘要】 扬声器阵列的优化设计问题关系到阵列的远场指向性的优劣以及阵列成本的高低。本文研究了扬声器相控矩形面阵列远场指向性函数与阵列相关参数的关系。在无相控和有相控两种情况下,分析了不同阵元间距和不同声源频率对于扬声器矩形面阵列指向性的影响。通过仿真,得出了在理想条件下相关指向性参量随着阵列参数改变的变化规律,对于实际矩形面阵列的优化设计有一定指导意义。更多还原

【Abstract】 The optimal design of the loudspeaker array concerns the quality of the tar-field directivity of array and the primecost.This paper discusses the relation between far-field directivity of the loudspeaker phase-controlled rectangular planar array and relevant parameter,and analyses the effect from the condition of difference of the loudspeakers interval and voice frequency to the directivity of loudspeaker rectangle planar array when it under phase-controlled and non-phase-controlled.Through simulating,the variation regulation of directivity parameter that along with the change of array factors is achieved.The result of simulation has a certain value of guidance for designing rectangular planar array.更多还原