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