Hierarchical Frequency-Domain Sparsity-Based Algorithm for Fault Feature Extraction of Rolling Bearings.
Baoxiang WangChuancang DingPublished in: IEEE Trans. Instrum. Meas. (2020)
Keyphrases
- frequency domain
- feature extraction
- preprocessing
- spatial domain
- fast fourier transform
- fourier transform
- matching algorithm
- spectral domain
- cross correlation
- extracted features
- recognition algorithm
- computational complexity
- multiscale
- image segmentation
- fault diagnosis
- signal processing
- image registration
- discrete fourier transform
- directional filtering