Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15144
Title: A study on wireless hearing aids system configuration and simulation
Authors: TANG BIN
Keywords: Wireless, hearing aid, Advanced Design System, system simulation, behavioral model
Issue Date: 22-Dec-2005
Source: TANG BIN (2005-12-22). A study on wireless hearing aids system configuration and simulation. ScholarBank@NUS Repository.
Abstract: Although various DSP algorithms have been developed for noise/reverberation cancellation, the space and power limitations imposed by single-unit hearing instruments bring design difficulties. A single-RF linked wireless hearing aid system based on beamforming noise cancellation technique and CMOS technology has been proposed by this work.System level simulation using Advanced Design Systema?? (ADS) in wireless hearing aid system has never been reported before. However, the fast RF simulation feature and co-simulation ability of ADS provide capabilities for simulating electro-acoustic complex systems with DSP such as wireless hearing aids.All block models are built in ADS 2002C environment. The output SNR and input SNR relation can be obtained, and improvement of SNR across the wireless system is observed which indicates the ability of the proposed system in noise suppression. The frequency response of the whole system is seen dominated by frequency response of the electro-acoustic transducers. The optimized system performance obtained proves that our proposed system is able to suppress background noise with less consideration on power consumption and circuit area. The system simulation our proposed system is able to suppress background noise with less consideration on power consumption and circuit area.
URI: http://scholarbank.nus.edu.sg/handle/10635/15144
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