This is machine translation

Translated by Microsoft
Mouseover text to see original. Click the button below to return to the English version of the page.

Note: This page has been translated by MathWorks. Click here to see
To view all translated materials including this page, select Country from the country navigator on the bottom of this page.

Wavelet Toolbox Product Description

Analyze and synthesize signals and images using wavelets

Wavelet Toolbox™ provides functions and apps for analyzing and synthesizing signals and images. The toolbox includes algorithms for continuous wavelet analysis, wavelet coherence, synchrosqueezing, and data-adaptive time-frequency analysis. The toolbox also includes apps and functions for decimated and nondecimated discrete wavelet analysis of signals and images, including wavelet packets and dual-tree transforms.

Using continuous wavelet analysis, you can study the way spectral features evolve over time, identify common time-varying patterns in two signals, and perform time-localized filtering. Using discrete wavelet analysis, you can analyze signals and images at different resolutions to detect changepoints, discontinuities, and other events not readily visible in raw data. You can compare signal statistics on multiple scales, and perform fractal analysis of data to reveal hidden patterns.

With Wavelet Toolbox you can obtain a sparse representation of data, useful for denoising or compressing the data while preserving important features. Many toolbox functions support C/C++ code generation for desktop prototyping and embedded system deployment.

Key Features

  • Time-frequency analysis using continuous wavelet transform, wavelet coherence, constant-Q transform, empirical mode decomposition, and Hilbert-Huang transform

  • Wavelet Signal Denoiser app for denoising time-series data

  • Decimated wavelet packet and wavelet transforms, including wavelet leaders for fractal analysis

  • Nondecimated techniques, including dual-tree, stationary wavelet, maximal overlap discrete wavelet, and wavelet packet transforms

  • Signal, image denoising, and compression, including matching pursuit

  • Lifting method for constructing custom wavelets