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4 滤波处理前后声信号的频谱图对比

Fig.4 Comparison of spectrogram of acoustic signal before and after filtering