张国昌;吴鸣;杨军;

• 1:中国科学院大学
• 2:中国科学院声学研究所噪声与振动重点实验室

摘要(Abstract)：

混响是导致室内声源定位精度下降的主要因素之一。为了降低混响环境下的定位误差,本文应用加权预测误差算法对麦克风阵列信号进行去混响预处理。为了定量分析该去混响方法为声源定位带来的精准度上的提升,我们在多种混响时间、多种白噪声信噪比、两类定位算法和两种阵列参数条件下进行了仿真和实验。仿真和实验结果均表明,与不使用去混响预处理的方法相比,引入去混响预处理可以显著地提升声源定位的鲁棒性,其中在混响时间为1.4 s的仿真环境下,定位误差降低了87%,在实验环境下的定位误差也有不低于50%的下降。

关键词(KeyWords)： 声源定位;加权预测误差;去混响

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划课题(编号:2016YFB1200503);; 国家自然科学基金项目(编号:11474306、11404367、11474307)

作者(Authors): 张国昌;吴鸣;杨军;

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