Adaptive feedback cancellation based on variable step-size affine projection for hearing aids

doi:10.1016/S1005-8885(15)60618-5

中国邮电高校学报(英文) ›› 2015, Vol. 22 ›› Issue (1): 6-10.doi: 10.1016/S1005-8885(15)60618-5

Adaptive feedback cancellation based on variable step-size affine projection for hearing aids

秦海娟

南京邮电大学

收稿日期:2014-06-25 修回日期:2014-09-19 出版日期:2015-02-28 发布日期:2015-02-28
通讯作者: 秦海娟 E-mail:qinhaijuan119@163.com
基金资助:
江苏省高校自然科学研究重大项目资助;江苏高校优势学科建设工程资助项目

Adaptive feedback cancellation based on variable step-size affine projection for hearing aids

Received:2014-06-25 Revised:2014-09-19 Online:2015-02-28 Published:2015-02-28

摘要/Abstract

摘要： A new variable step-size (VSS) affine projection algorithm (APA) (VSS-APA) was proposed for adaptive feedback cancellation suitable for hearing aids. So, a nonlinear function between step-size and estimation error is established and automatically adjusted according to the change of the estimation error, which leads to low misalignment and fast convergence speed. Analysis of the proposed algorithm offers large capacities in converging to the objective system. Simulation shows that the proposed algorithm achieves lower misalignment and faster convergence speed compared to fixed step-size APA and conventional adaptive algorithms.

关键词: adaptive feedback cancellation, VSS, APA, adaptive filter, hearing aids

Abstract: A new variable step-size (VSS) affine projection algorithm (APA) (VSS-APA) was proposed for adaptive feedback cancellation suitable for hearing aids. So, a nonlinear function between step-size and estimation error is established and automatically adjusted according to the change of the estimation error, which leads to low misalignment and fast convergence speed. Analysis of the proposed algorithm offers large capacities in converging to the objective system. Simulation shows that the proposed algorithm achieves lower misalignment and faster convergence speed compared to fixed step-size APA and conventional adaptive algorithms.

Key words: adaptive feedback cancellation, VSS, APA, adaptive filter, hearing aids

中图分类号:

TN912

参考文献

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Adaptive feedback cancellation based on variable step-size affine projection for hearing aids

Adaptive feedback cancellation based on variable step-size affine projection for hearing aids

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