基于声信号识别的水下焊接质量检测方法研究 |
纪晓东,程天宇,华亮,张新松 |
Research on detection method of underwater welding quality based on acoustic signal recognition |
Xiaodong JI,Tianyu CHENG,Liang HUA,Xinsong ZHANG |
图7 声信号的短时平均过零率 |
Fig.7 Short-time average zero crossing rate of acoustic signal |
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