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奠定在傅里叶变换研究基础上,小波分析属于时顿分析方法,具有时频局部分析与多尺度分析的优势,一般在非平稳信号的处理中发挥积极作用。当前,小波分析凭借良好的信号处理与图像处理技能,已经在焊接领域广泛运用。本文将对小波分析在焊接过程及缺陷无损检测中的应用进行分析与探讨。
Based on the research of Fourier transform, wavelet analysis belongs to the method of time-frequency analysis, which has the advantage of local time-frequency analysis and multi-scale analysis. It generally plays an active role in the processing of non-stationary signals. At present, wavelet analysis has been widely used in welding field with good signal processing and image processing skills. This article will analyze and discuss the application of wavelet analysis in welding process and defect non-destructive testing.