QIU Tianshuang   

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Language:English

Paper Publications

Title of Paper:基于检测前跟踪的声源跟踪算法

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Date of Publication:2017-02-25

Journal:通信学报

Included Journals:EI、CSCD

Volume:38

Issue:2

Page Number:67-73

ISSN No.:1000-436X

Key Words:声源跟踪;粒子滤波;可控响应功率;检测前跟踪

Abstract:针对低信噪比、强混响环境中声源跟踪误差较大的问题,提出一种基于检测前跟踪的声源跟踪算法.该算法将一种改进的可控响应功率函数作为定位函数,通过计算粒子所在矩形区域的可控响应功率值,改进的可控响应功率函数可以得到更加顽健的声源位置估计;同时,将检测前跟踪技术应用于跟踪算法中,可以免于重复计算处于同一区域的量测值,从而在保证跟踪精度的前提下大幅减少跟踪算法的运算量.经仿真实验验证,改进算法在低信噪比、强混响的环境中能够得到比传统跟踪算法更精确的跟踪结果.

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