基于小波降噪的时延估计研究
Based on generalized cross correlation algorithm to sound source localization analysis
时延估计是阵列信号处理中的一项关键技术。针对室内视频监控系统对声源定位技术的需求，本文对广义互相关算法中基本互相关、互功率谱相位、Roth处理器以及平滑相干变换方法的抗噪能力和抗混响能力进行分析比较，用平滑相干变换加权方法很好的满足了视频监控系统对声音定位技术在抗噪方面的需求。
ime delay of arrival (TDOA) is one of the key techniques in array signal process. In view of the requirement of sound source localization in video monitor system, we compare anti-reverberation and anti-noise capability among cross correlation(CC), phase transform(PHAT), Roth processor and smooth coherent transform(SCOT) weighting functions which belong to generalized cross correlation algorithm, the SCOT weighting function method greatly meets the demand of sound source localization in anti-noise capability of the video monitor system.
石为人、张明瀚
声学工程通信
声源定位互相关时延估计
sound source localizationcross correlationtime delay estimation
石为人,张明瀚.基于小波降噪的时延估计研究[EB/OL].(2009-03-16)[2025-08-23].http://www.paper.edu.cn/releasepaper/content/200903-579.点此复制
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