在综合描述复合材料声发射信号特征和小波变换基本原理的基础上,本文总结了小波变换在声发射信号分析中的研究进展,并重点描述小波变换对复合材料破坏过程中声发射信号的特征提取、时频分析和信号除噪及声源定位方面的研究,提出了小波变换在声发射信号分析应用中需要进一步解决的问题.
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