How can you describe the continuous wavelet transform?

Asked on 15.11.2018 in All Questions.
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Vibration signal during start-up or shut-down are non-stationary in nature, whcih means the frequency changes with time. The traditional signal procesessing techquique, Fast Fourier Transform (FFT) assumes the signal is stationary and gives the frequency  content of the signal whcih prevail at the entire duration of the signal. This property makes the fourior transform unsuitable for analysing the nonstationary vibration signal.  Whereas the wavelet transform breaks the signal into its scaled shifted versions of the...
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