采用相关系数法、欧氏距离法对这两类缺陷信号的的波形进行模式识别，以这两种方法为基础提出一种对此类缺陷信号综合识别方法。
The waveform of flaw signals from the rod is identified by the correlation method and Euclidean distance method. Based on these two methods, a comprehensive identification method is brought up.
在超声信号波形识别和到达时刻判别上，本研究将传统的阈值法改进为高速数据全采集方法。
Compare to the traditional threshold method to distinguish the signal and detect the time, complete data sampling is adopted. And in this thesis, these follow content are introduced in detail.
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