基于小波分析的超声波检测信号处理  

Processing of Rock Ultrasonic Testing Signal Bases on Wavelet Analysis

作　　者：胡彩雯[1] 张晓春[1] 

机构地区：[1]华北科技学院,北京101601

出　　处：《煤矿机械》2008年第2期168-169,共2页Coal Mine Machinery

摘　　要：利用小波变换分析超声波检测信号,判断岩石内部结构,物理力学性质。应用小波变换的多分辨率分析,对岩石超声检测信号进行了时频分析和处理。结果表明,小波变换可以去除信号中的噪声,并能聚焦到信号的任意细节,检测出信号的奇异性,判断岩石的完整、裂隙、节理和断层等结构特性。To analysis ultrasonic testing signal in rock by wavelet analysis, it realizes to judge structure and physics mechanic characteristic of rock. Apply wavelet transform to perform analysis and processing of rock ultrasonic testing signals in time and frequency area. The result show that wavelet transformation can remove interference signal, and focus the signal arbitrarily detail, and examine singularity of signal, and judge the structure characteristic for integrity rock and intact rock and joints rock and faultage rock.

关 键 词：信号处理 超声检测 岩石 小波变换 奇异信号 

分 类 号：TB5[理学—物理]