瞬态诱发耳声发射信号的小波去噪方法  

Method of Wavelet Denoising and Its Application to Analysis of Transient Evoked Otoacoustic Emissions

作　　者：谢宝玲[1] 吴克勤[1] 范丽华[1] 赵莲花[1] 张琳琳[2] 

机构地区：[1]沈阳工业大学,辽宁辽阳111003 [2]上海理工大学,上海200093

出　　处：《噪声与振动控制》2011年第6期169-171,179,共4页Noise and Vibration Control

摘　　要：在真实的瞬态诱发耳声发射信号中,加上合理的噪声信号,模拟采集的瞬态诱发耳声发射信号。用传统的和小波变换去噪方法对模拟信号进行去噪处理,分析去噪效果。找到了合适的小波参量,使去噪后的相关率和信噪比指标提高,减少了检测时间。Noises are artificially added to a real Transiently-Evoked Otoacoustic-Emission （TEOAE） signal to stimulate the collected TEOAEs signal. Then, the stimulated signal is denoised using traditional denoising method and wavelet transform method, and the results are analyzed. The suitable wavelet parameters for TEOAEs are found to improve the correlation ratio and the signal-to-noise ratio of the results, and to reduce the inspecting time.

关 键 词：声学 耳声发射 小波变换 去噪 

分 类 号：O421[理学—声学]