光通信技术2024，Vol.48Issue(6)：28-33,6.DOI:10.13921/j.cnki.issn1002-5561.2024.06.006
一种用于声源定位的改进的广义互相关时延估计算法
Improved generalized cross-correlation time delay estimation algorithm for sound source localization
摘要
Abstract
To address the issue of low localization accuracy of the generalized cross-correlation(GCC)algorithm in strong noise environments,an improved GCC time delay estimation algorithm is proposed.This algorithm combines the least mean squares(LMS)algorithm with the quadratic cross-correlation method to enhance the traditional GCC algorithm,effectively suppressing the impact of noise.Additionally,spline interpolation techniques are used to significantly improve the accuracy of time delay esti-mation during the secondary peak detection process.The simulation results show that this algorithm reduces the error in sound source coordinate positioning from 17.7％with the traditional GCC algorithm to within 8.36％.In practical application tests,the er-ror in sound source coordinate positioning is also significantly reduced from 42.2％with the traditional GCC algorithm to 15.4％.关键词
光纤麦克风/改进时延估计/超声/声源定位/局部放电Key words
fiber optic microphone/improved delay estimation/ultrasonic/sound source localization/partial discharge分类
信息技术与安全科学引用本文复制引用
梁家碧,邵剑,李群,吴鹏,林元棣,王同磊,李晓涵,刘进栋..一种用于声源定位的改进的广义互相关时延估计算法[J].光通信技术,2024,48(6):28-33,6.基金项目
国网江苏省电力有限公司科技项目(J2023093)资助. （J2023093）
