摘要
介绍小波变换的基本概念和特性。用小波变换对钢丝绳断丝检测信号和岩体超声波检测信号进行的时频分析和处理。实验结果表明,该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。
Concept and characteristics of wavelet transform is described. It is used to make time-frequency analysis and processing of the signals from both the broken wires in a steel rope and rock ultrasonic testing. Experiments show that the technique is effective for processing unstable signals of time-variation spectra.
出处
《无损检测》
1997年第3期61-63,88,共4页
Nondestructive Testing
