基于远场声源定位的改进MUSIC算法研究  

The research of improved MUSIC algorithm based on far field sound source localization

作　　者：邓艳容[1] 李嘉栋 张法碧[1] 罗迪 朱承同 冯振邦 Deng Yanrong;Li Jiadong;Zhang Fabi;Luo Di;Zhu Chengtong;Feng Zhenbang(Guangxi Key Laboratory of Precision Navigation Technology and Application,Guilin University of Electronic Technology,Guilin 541004,China)

机构地区：[1]桂林电子科技大学广西精密导航技术与应用重点实验室,广西桂林541004

出　　处：《电子技术应用》2018年第12期69-72,共4页Application of Electronic Technique

基　　金：广西大学生创新训练计划项目(C77JWA24GJ04);"认知无线电与信息处理"省部共建教育部重点实验室基金项目(CRKL180109)

摘　　要：结合语音信号的特点,对远场声源定位方法进行了系统的研究。以传统的多重信号分类(MUSIC)算法为基础,在麦克风阵列远场信号模型的情况下,提出了改进的MUSIC算法,并通过模拟实验环境进行验证。仿真结果表明,改进的算法具有较高的空间分辨率和较强的抗噪声能力,可以有效地估计出相隔比较近的多个低信噪比声源信号,从而验证了该算法的有效性和高效性。Systemic research has been done on the thesis of far field sound source localization combined characteristics of the speech signal in this paper.An improved MUSIC algorithm is proposed based on the traditional MUSIC algorithm in far-field of microphone array signal model,and experiments in simulated environment is carried out.Simulation results show that the improved algorithm has higher spatial identification rate and strong noise immunity,it can estimate the adjacent sound source signals with small SNR effectively,so the effectiveness and high efficiency of the improved algorithm are proved.

关 键 词：MUSIC算法 声源定位 远场 子空间 

分 类 号：TN912.3[电子电信—通信与信息系统]