工矿自动化2017，Vol.43Issue(10)：97-100,4.DOI:10.13272/j.issn.1671-251x.2017.10.020
自适应回声消除器设计
Design of self-adaptive echo canceller
摘要
Abstract
In view of problem of echo interference in voice communication of rescue communication system,a self-adaptive echo canceller was designed based on self-adaptive filter using normalized least mean square and voice detection module.Working principle and design scheme of the self-adaptive echo canceller were introduced.The test results show that the self-adaptive echo canceller has rapid convergence speed,which can converge to below-30 dB within 1 s,and basically eliminate audio signal echo.关键词
救援通信/语音通信/回声消除/自适应滤波器/归一化最小均方误差算法Key words
rescue communication/voice communication/echo cancellation/self-adaptive filter/normalized least mean square分类
矿业与冶金引用本文复制引用
李文峰,王晓辉,孙小业..自适应回声消除器设计[J].工矿自动化,2017,43(10):97-100,4.基金项目
陕西省科技统筹创新工程计划资助项目(2015KTCQ03-10). （2015KTCQ03-10）
