Noise Reduction of Welding Crack AE Signal Based on EMD and Wavelet Packet.
Kuanfang HeZixiong XiaYin SiQinghua LuYanfeng PengPublished in: Sensors (2020)
Keyphrases
- noise reduction
- wavelet packet
- wavelet packet decomposition
- wavelet packet transform
- filter bank
- non stationary
- signal to noise ratio
- edge preserving
- subband
- empirical mode decomposition
- denoising
- edge detection
- wavelet function
- wiener filter
- wavelet decomposition
- noisy environments
- noise removal
- wavelet transform
- hearing aids
- frequency band
- denoising methods
- speech enhancement
- median filter
- distance measure
- image coding
- noise cancellation
- vector quantizer
- data structure
- quadtree
- image reconstruction
- single channel
- high frequency
- frequency domain
- motion estimation
- feature space