Bias of feedback cancellation algorithms based on direct closed loop identification

被引：0
|
作者：
Hellgren, J [1 ]
Forssell, U [1 ]
机构：
[1] Linkoping Univ, Dept Neurosci & Locomot, SE-58185 Linkoping, Sweden
来源：
2000 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING, PROCEEDINGS, VOLS I-VI | 2000年
关键词：
D O I：
暂无
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
An adaptive filter can be used to cancel the undesired acoustic feedback of hearing aids. The adaptive algorithm studied in this paper uses the output and input signal of the hearing aid to continuously track the acoustic feedback path. The bias of the optimal estimate with a quadratic norm is analyzed. The results show the importance of having a good model of the input signal to the hearing aid, as the error in this model will introduce bias in the estimate of the feedback path.
引用
收藏
页码：869 / 872
页数：4
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