三经线交点球麦克风阵列及其设计方法技术

本发明专利技术公开了一种三经线交点球麦克风阵列及其设计方法。该阵列由承载球体和固定在承载球体表面上的若干麦克风组成，若干麦克风被固定在承载球体表面的三经线交点位置处。该阵列的设计方法包括以下步骤：（１）建立以承载球体的球心为坐标原点的空间直角坐标系；（２）分别在上述承载球体的表面作三组等夹角的大圆；（３）从步骤（２）所作的三组大圆的交点中选取出不同组的三个大圆的共交点，并在承载球体表面上的这些共交点处固定麦克风，即得到了三经线交点球麦克风阵列。该球麦克风阵列关于空间直角坐标系的三条坐标轴旋转对称；该球麦克风阵列的冗余度较小；并且该球麦克风阵列在承载球体表面的空间位置分布能够方便地确定。

Three meridian crossed penalty microphone array and design method thereof

The invention discloses a three meridian intersection penalty microphone array and a design method thereof. The array consists of a load-bearing sphere and a plurality of microphones fixed on the surface of the carrier sphere, and a plurality of microphones are fixed at the position of the three meridian intersection of the ball bearing surface. The design method of the array comprises the following steps: (1) to establish the bearing ball center of the sphere as the origin of coordinates of the space coordinate system; (2) were three large group in the angle of the bearing surface of the sphere; (3) from step (2) selected from the different groups of the intersection of the three circle group in the three round total of intersection, and the load on the surface of a sphere is the intersection of the fixed microphone, which can make three longitude spherical microphone array. The spherical microphone array on the space Cartesian coordinates of the three axes of rotational symmetry; less redundancy of the spherical microphone array; and the microphone array in the space distribution of the surface of the ball bearing can be easily determined.

【技术实现步骤摘要】

【技术保护点】
一种三经线交点球麦克风阵列，它由承载球体和固定在承载球体表面上的若干麦克风组成，其特征在于：上述若干麦克风被固定在承载球体表面的三经线交点位置处。

【技术特征摘要】

【专利技术属性】
技术研发人员：庄启雷，黄青华，
申请(专利权)人：上海大学，
类型：发明
国别省市：31[中国|上海]