| STFT | Short-Time Fourier Transform |
| CWRU | Case Western Reserve University |
| DWT | Discrete Wavelet Transform |
| EMD | Empirical Mode Decomposition |
| CWT | Continuous Wavelet Transform |
| WVD | Wigner–Ville Distribution |
| MUSIC | Multiple Signal Classification |
| DE | Drive End |
| FFT | Fast Fourier Transform |
| HT | Hilbert Transform |
| VFD | Variable Frequency Drive |
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