摘要
介绍了小波变换的基本概念和特性。应用小波变换对岩石超声波检测信号进行了时频分析和处理。结果表明，该方法是分析处理具有时变谱特性的非平稳信号的一种有效方法。
Concepts and characteristics of wavelet transform are described in the paper- The results derived from applying wavelet transform to perform time-frequency analysis and processing of rock ultrasonic testing signals show that the technique forms an effective one for analyzing and processing unstable signals of time- variation spectra.
基金
黑龙江省自然科学基金
关键词
小波变换
多分辨率分析
超声检测
信号
岩石
wavelet transform
multi-resolution analysis
ultrasonic testing
signal
rock
