Libraries of Matlab m-files and Toolboxes

Here are some collections of DSP-related Matlab™  m-files and toolboxes which are available on the Internet.

General M-file Collections

• Matlab 5 User M-Files - A collection of user-contributed m-files hosted by The Mathworks, the maker of Matlab.
• Mathtools.net - Also provided by The Mathworks, this is a very comprehensive index of scientific and computing engineering resources, including a Matlab section.
• Octave Source - Octave is a high-quality Matlab clone which is nearly 100% compatible with Matlab. Octave's source contains a large number of m-files, including many files for signal processing and control applications.
• Scilab Source - Scilab is another high-quality Matlab clone. Although Scilab is not 100% compatible with Matlab, the large collection of Scilab functions which come with the Scilab source (including many functions similar to Matlab's "DSP Toolbox") can be converted into m-files fairly easily. This makes the Scilab source a great reference for Matlab users.

Filter Design

• DFP - The Digital Filter Package (DFP) is a user-friendly GUI front end for doing digital filter design with Matlab. (Requires the Signal Processing Toolbox.)
• Exchange Algorithms Complementing the Parks-McClellan Algorithm - These programs design symmetric equiripple FIR filters achieving specified Chebyshev errors in each band.

Adaptive Filtering

• Adaptive Filter Library - A collection of m-files for various adaptive filtering algorithms.

FFT

• FFT Programs for Prime Lengths - Matlab programs to illustrate the algorithm described in the paper Automatic Generation of Prime-Length FFT Programs.

Frequency Analysis

• Time-Frequency Toolbox - The Time-Frequency Toolbox is a collection of about 100 M-files developed for the analysis of non-stationary signals using time-frequency distributions.
• Some Frequency Estimation Algorithms - This page hosts m-files for estimating the frequency of a single constant tone in the presence of noise.

Tutorial

• The course notes of Purdue University's EE 538 (DSP I) and EE 648 (DSP II) courses include many instructional m-files.

Wavelets

• WaveLab - WaveLab is a library of Matlab routines for wavelet analysis, wavelet- packet analysis, cosine-packet analysis and matching pursuit.
• Wavekit - Wavekit is a collection of functions for Matlab that implement several wavelet and wavelet packet algorithms.

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