Acoustic Signal-Based Defect Identification for Directed Energy Deposition-Arc Using Wavelet Time-Frequency Diagrams.
Hui ZhangQianru WuWenlai TangJiquan YangPublished in: Sensors (2024)
Keyphrases
- acoustic signal
- wavelet transform
- acoustic signals
- energy distribution
- multiscale
- energy consumption
- multiresolution
- wavelet packet
- energy minimization
- denoising
- multiresolution analysis
- low energy
- energy saving
- wavelet decomposition
- minimum energy
- image coding
- signal processing
- neural network
- plasma etching
- bandpass
- energy efficiency
- frequency domain
- subband
- data structure
- feature extraction