Howtosignalprocessing
- How do I choose a mother wavelet?
- What is a Scalogram wavelet?
- Which wavelet best reproduces the Fourier power spectrum?
- Which is the best wavelet?
How do I choose a mother wavelet?
Both the optimal mother wavelet and decomposition level are selected by evaluating signal-to-noise-ratio (SNR) efficiency of the denoised signals obtained by using the wavelet thresholding method.
What is a Scalogram wavelet?
Wavelet scalograms visualize the time frequency localization property of the discrete wavelet transform. In a scalogram, each detail coefficient is plotted as a filled rectangle whose color corresponds to the magnitude of the coefficient.
Which wavelet best reproduces the Fourier power spectrum?
The Fan, Halo and Morlet wavelets were the most successful at reproducing the Fourier spectra.
Which is the best wavelet?
An orthogonal wavelet, such as a Symlet or Daubechies wavelet, is a good choice for denoising signals. A biorthogonal wavelet can also be good for image processing.
