Aluminum wire ultrasonic bonding; transducer drive current; signal time-frequency analysis; feature selecting; quality online monitoring.
粗铝丝超声引线键合；换能器驱动电流；信号时频分析；特征提取；质量在线监测。
The differences between automatic signature verification and manual one are feature selecting and the way of judging.
在特征的选择上，人工笔迹鉴定注重局部特征，而自动签名验证多用全局特征。
The differences between automatic signature verification and manual one are feature selecting and the way of judging.
在特征的选择上，人工笔迹鉴定注重局部特征，而自动签名验证多用全局特征。
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