continuous wavelet transform and inverse

Version 1.4.0.0 (742 KB) by jon erickson
Continuous wavelet transform (CWT) and Inverse CWT for reconstructing original signal.
4.7
(15)
13.3K Downloads
Updated 28 Mar 2017

View License

This collection of files to perform an inverse continuous wavelet transform is an extension of the wavelet software package originally written by Torrence and Compo (http://paos.colorado.edu/research/wavelets/software.html)
The main functions are:
1. contwt.m: (continuous wavelet transform). This is essentially Torrence and Compo's wavelet.m with a few modifications (more inputs and outputs for easier access)
2. invcwt.m: inverse continuous wavelet transform.

3. example_invcwt.m: Demo/example usage. This is a template for building simple sine wave, setting wavelet parameters, and comparing original and reconstructed signal.

Please see the help in each function for details and usage.

Cite As

jon erickson (2024). continuous wavelet transform and inverse (https://www.mathworks.com/matlabcentral/fileexchange/20821-continuous-wavelet-transform-and-inverse), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2014a
Compatible with any release
Platform Compatibility
Windows macOS Linux

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Version Published Release Notes
1.4.0.0

fixed bug in example_invcwt.m
1.3.0.0

LAST UPDATED DEC 19 2016: added more extensive example in example_invcwt.m
This may be used as a template to explore how parameters settings influence reconstruction quality.
1.2.0.0

Default number of scales computed is the minimum sufficient number for accurate reconstruction. Previously, depending on the number of samples in the original signal, the continuous wavelet transform computed used one scale to few.
1.1.0.0

-Added example usage.
-Added screen shot.
-Reloaded updated files, which should resolve the issues using wave_bases.m vs wave_bases_rec.m

1.0.0.0