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Acoustic Signal-Based Defect Identification for Directed Energy Deposition-Arc Using Wavelet Time-Frequency Diagrams.
Hui Zhang
Qianru Wu
Wenlai Tang
Jiquan Yang
Published in:
Sensors (2024)
Keyphrases
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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