A convolution model for computing the far-field directivity of a parametric loudspeaker array

作者:Shi Chuang*; Kajikawa Yoshinobu
来源:Journal of the Acoustical Society of America, 2015, 137(2): 777-784.
DOI:10.1121/1.4906163

摘要

This paper describes a method to compute the far-field directivity of a parametric loudspeaker array (PLA), whereby the steerable parametric loudspeaker can be implemented when phased array techniques are applied. The convolution of the product directivity and the Westervelt's directivity is suggested, substituting for the past practice of using the product directivity only. Computed directivity of a PLA using the proposed convolution model achieves significant improvement in agreement to measured directivity at a negligible computational cost.

  • 出版日期2015-2