陈栋,杨保海,丁文斌

• 1:九江学院电子工程学院

摘要(Abstract)：

在冲激噪声环境下,ISM算法对声源的三维定位估计将失去稳健性。为此,改进了ISM算法,提出FLOC-ISM算法。首先对描述冲激噪声的SαS分布模型及描述信号的圆阵信号模型进行分析;然后对圆阵输出矩阵预处理,构造分数低阶相关矩阵替代二阶相关矩阵,得到声源空间谱,进行谱峰搜索,找出极值点;最后得到声源三维定位估计。通过仿真及性能分析,在冲激噪声背景下,FLOC-ISM算法可对多个声源的三维定位进行正确估计,较ISM算法具有良好的稳健性。

关键词(KeyWords)： 三维定位;声源;ISM算法;空间谱;冲激噪声;分数低阶相关

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(61261046);; 江西省教育厅科学技术研究项目(GJJ14721,GJJ14739);; 九江学院校级科研项目(2016KJ003)~~

作者(Author): 陈栋,杨保海,丁文斌

DOI: 10.16652/j.issn.1004-373x.2018.21.011

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