I am currently learning about Haar wavelets.
Here is a brief introduction: Haar_wavelet.pdf
Here is a Matlab GUI package: Haar_wavelet_main.zip
Haar_wavelet_main.m is the main script.
The remaining scripts are supporting functions.
I can understand how these wavelet are useful for transmitting communication signals. I am still trying to determine whether they are really useful for shock and vibration analysis.
Haar wavelets can be used for filtering, but the traditional Bessel and Butterworth filters seem to be more appropriate for shock and vibration.
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Daubechies D4 Wavelet with periodic treatment of edge condition.
Here is a Matlab GUI package: D4_wavelet_main.zip
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– Tom Irvine