计算机应用研究2011，Vol.28Issue(12)：4535-4536,4540,3.DOI:10.3969/j.issn.1001-3695.2011.12.036
基于广义S变换的声发射信号去噪研究
Denoising of acoustic emission signals based on generalized S transform
摘要
Abstract
Based on generalized S transform (GST) zero-filling,design operator using band-pass filter and time-frequency fil-tering were applied to AE signals denoising. It designed the corresponding time-frequency filtering operators for the different frequency characteristics of signals. Experimental results show that the time-frequency filtering based on GST has obvious ad-vantages. It can effectively remove the noises in the case of both the high signal to noise ratio(SNR)and the low SNR.关键词
声发射/广义S变换/时频滤波算子Key words
AE/ GST/ time-frequency filter operator/分类
信息技术与安全科学引用本文复制引用
刘永春,童敏明,陈琳,贺新民..基于广义S变换的声发射信号去噪研究[J].计算机应用研究,2011,28(12):4535-4536,4540,3.基金项目
国家"973"重点基础研究发展规划资助项目(2007CB209407) （2007CB209407）
