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No. 57 (1999/03) >

 
Title :double-talk状態でのエコーキャンセリングを行なう相関LMSアルゴリズムの提案
Title alternative :Echo-Canceling in Double-Talk Condition by Defining Correlation LMS Algorithm
Authors :林, 隆広
アシャリフ, モハマッド レザー
Authors alternative :Hayashi, Takahiro
Asharif, Mohammad Reza
Issue Date :Mar-1999
Abstract :The conventional algorithms in the echo canceling system for hand-free set mobile radio telephone have drawback when they are faced with double-talk conditions. This condition could mislead the effective algorithm in finding the echo path replica. In this paper, we have defined a new algorithm for tap adaptations in the echo canceler based on correlation function (CLMS), where the near-end signal is existing. In this approach, the gradient search algorithm is obtained from the correlation function of the input signal. That is, the tap adaptation process is performed in a newly defined correlation path, and then copied into the echo path replica digital filter The computer simulation shows the robustness of the proposed algorithm in the presence of double-talk signal.
Type Local :紀要論文
ISSN :0389-102X
Publisher :琉球大学工学部
URI :http://hdl.handle.net/20.500.12000/1486
Citation :琉球大学工学部紀要 no.57 p.137 -142
Appears in Collections:No. 57 (1999/03)

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