Abstract:Underwater welding arc signal is an important signal that reflect welding condition.How to analyze and deal with arc signal will effect the test results of the penetration depth online.Based on wavelet transform method,this paper studies the shortcomings of the sort-threshold and the hard-threshold in the wavelet threshold de-noising method and proposes an improved threshold quantitative de-noising method.Experiments show that this method has a good effect in the arc signal de-noising.
李春香 张为民 钟碧良. 基于小波变换的水下焊接电弧信号消噪处理研究[J]. , 2010, 1(07): 0-0.
Li Chunxiang Zhang Weimin Zhong Biliang. Research of Underwater Welding Arc Signal for the De-noising Processing Based on Wavlet Transform . , 2010, 1(07): 0-0.