全模拟低功耗小波助听器前端

2013 IEEE Biomedical Circuits and Systems Conference (BioCAS) Pub Date : 2013-12-12 DOI:10.1109/BioCAS.2013.6679684

José E. G. Medeiros, Lucas A. P. Chrisostomo, Gabriela Meira, Yuri C. R. Toledo, Matheus Pimenta, S. Haddad

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引用次数: 4

摘要

本文提出了一种基于模拟小波变换信号处理的新型低功耗助听器前端。该系统由模拟小波滤波器组和自动增益控制(AGC)组成，决策逻辑采用新的拓扑结构，可编程增益放大器(PGA)采用新的电路设计。从仿真结果来看，采用0.18um CMOS技术的电路在超低功耗环境下的信噪比(SNR)和响度行为方面表现出非常好的性能。

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 fully analog low-power wavelet-based Hearing Aid Front-end

This paper presents a new low-power Hearing Aid Front-end based on an analog wavelet transform signal processing. The system consists of an analog wavelet filter bank and an Automatic Gain Control (AGC), with a new topology for the decision logic and a new circuit design for the Programable Gain Amplifier (PGA). From simulation results, using a 0.18um CMOS technology, the proposed circuit shows very good performance with respect to Signal-to-Noise Ratio (SNR) and loudness behavior in an ultra low-power environment.

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2013 IEEE Biomedical Circuits and Systems Conference (BioCAS)

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