Signal Processing Toolbox

The MathWorks, Inc.

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A collection of MATLAB functions that provides a rich, customizable framework for analog and digital signal processing


  • Tools for finite impulse response (FIR) and infinite impulse response (IIR) digital filter design, analysis, and implementation
  • Extensive list of filter structures
  • Widely-used transforms, including fast Fourier transform (FFT) and discrete cosine transform (DCT)
  • Methods for spectrum estimation and statistical signal processing?
  • Functions for parametric time-series modeling
  • Routines for waveform generation including a Gaussian pulse generator, a periodic sine generator, and a pulse train generator
  • Extensive list of data windowing algorithms
  • Object-oriented digital filter and window objects
  • GUIs for designing, analyzing, and visualizing signals, filters, and windows
  • Comprehensive set of signal and linear system models
  • Tools for analog filter design

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