The cutting sound signal in audible range includes a plenty of tool-wear information.
2
找出刀具磨损信息在可听阈内的主要集中频段能提高切削声信号的信噪比，改善识别结果。
Finding out the major concentrated frequency band of tool-wear information can enhance SNR (Signal Noise Ratio) and improve tool-wear degree recognition result.
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