一种用于助听器反馈回声消除的顺序自适应LMS设计

2012 Cairo International Biomedical Engineering Conference (CIBEC) Pub Date : 2012-12-01 DOI:10.1109/CIBEC.2012.6473303

M. Kongpoon, C. Chinrungrueng

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引用次数: 2

摘要

本文介绍了一种用于助听器反馈回声消除的混合自适应滤波器的设计。提出的设计利用多路直接形式(MDF) FIR滤波器和具有顺序自适应的LMS算法，以减少对芯片面积的要求，并最大限度地减少在非活动抽头活动中浪费的功耗。所提出的设计可高达6.25MS/s，与具有LMS适应性的传统固定阶FIR滤波器相比，可节省26%的功耗。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A design of LMS with order adaptation for feedback echo cancellation in hearing aids

This paper describes a design of a hybrid adaptive filter for feedback echo cancellation in hearing aids. The proposed design utilizes a multiplexing direct form (MDF) FIR filter, and the LMS algorithm with order adaptation in order to reduce a requirement of a chip area and to minimize power consumption wasted in activities of non active taps. The proposed design can operate up to 6.25MS/s, and could save 26% of power consumption compared to a conventional fixed order FIR filter with LMS adaptation.

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2012 Cairo International Biomedical Engineering Conference (CIBEC)

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