小波变换理论在弹药无损检测中的应用  

APPLICATION OF WAVELET TRANSFORM FOR NONDESTRUCTIVE TESTING OF EXPLOSIVE

作　　者：宋正刚[1] 郑波[1] 

机构地区：[1]北京理工大学机电工程学院,北京100081

出　　处：《无损检测》2004年第9期447-449,474,共4页Nondestructive Testing

摘　　要：为提高工业CT探测炸药的信噪比和可靠性,利用小波变换的方法降低信号噪声以实现有效的炸药探测。结果显示小波变换可对工业CT探测的炸药信号进行分析,能有效抑制噪声和提高信噪比,并可检测出药柱的裂纹及其位置。It was sometimes difficult to identify the defect signals of explosive with industrial computed tomography testing because of the signal noise, so wavelet transform was applied to reduce the signal noise. Results showed that the signal noise ratio(SNR) could be improved highly by wavelet transform, cracks in explosive cylinders could be detected and located correctly.

关 键 词：小波变换 工业计算机断层扫描成像 弹药 裂纹 

分 类 号：TG115.28[金属学及工艺—物理冶金]