一种基于时延差测量的运动声源快速定向算法  

Fast DOA Estimation Algorithm for Moving Source Based on Time-delay Differences Measurement

作　　者：李志宇[1] 黄嵘[1] 罗晓松[1] 

机构地区：[1]中国电子科技集团公司第三研究所,北京100015

出　　处：《电声技术》2009年第8期52-54,共3页Audio Engineering

摘　　要：基于时延差测量的定向方法在被动声源探测中广泛应用。在传统方法的基础上,结合实际应用中的实时性需要,提出了一种运动声源快速定向算法,即按照一定准则对时延差进行优化选择后再对选中的时延差进行估计,从而有效地降低了声源定向过程的运算量。计算机仿真结果表明,该方法运算量明显低于传统方法,且由于时延差选择合理,其定向精度也有一定提高。DOA estimation method based on time-delay differences is used widely in the field of passive source location. To meet the real-time demands of some location systems, a fast DOA Estimation algorithm for moving source is presented. In this method, only part of time-delay differences is estimated for the measuring of DOA to reduce the computational complexity. Computer simulation results indicate the new method has less computational cost by contrast with traditional method, and based on the reasonable time-delay differences the DOA estimation results are more accurate.

关 键 词：快速定向 时延差 实时性 

分 类 号：TB56[交通运输工程—水声工程]