铸造技术2013，Vol.34Issue(3)：304-307,4.
γ-TiAl合金超声检测中基于多分辨率分析的小波选取
Wavelet Selection in Ultrasonic Testing for γ-TiAl Alloy Based on MRA
摘要
Abstract
During the process of denoising of the original signal with wavelet transformation,the choice of wavelet has a direct effect on denoising.Based on the multi-resolution analysis (MRA) theory of wavelet transformation,the five common basic wavelets in engineering were compared,the basic principals to choose wavelet basis when dealing with the defective echo signal in ultrasonic testing for γ-TiAl alloy were discussed,and the best wavelet basis was put forward.The experiments proven that the conclusion is reliable.关键词
γ-TiAl合金/超声检测/多分辨率分析/信号处理Key words
γ-TiAl alloy/ ultrasonic testing/ muiti resolution analysis/ signal processing分类
矿业与冶金引用本文复制引用
崔治,崔宪普,肖卫初..γ-TiAl合金超声检测中基于多分辨率分析的小波选取[J].铸造技术,2013,34(3):304-307,4.基金项目
湖南省科技计划资助项目(2011GK3067) （2011GK3067）
益阳市科技计划资助项目(2012JZ12) （2012JZ12）
