The Large Time-Frequency Analysis Toolbox

- All your frame are belong to us -

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LTFAT - Signal processing tools

Peter L. Søndergaard, 2007 - 2016.

General

  • rms - Root Mean Square norm of signal.
  • normalize - Normalize signal by specified norm.
  • gaindb - Scale input signal
  • crestfactor - Compute the crest factor of a signal.
  • uquant - Simulate uniform quantization.

Window functions

  • firwin - FIR windows (Hanning,Hamming,Blackman,...).
  • firkaiser - FIR Kaiser-Bessel window.
  • fir2long - Extend FIR window to LONG window.
  • long2fir - Cut LONG window to FIR window.
  • freqwin - Freq responses (Gauss,Gammatone,Butterworth,...)

Filtering

Ramping

Thresholding methods

Image processing

  • rgb2jpeg - Convert RGB values to the JPEG colour model
  • jpeg2rgb - Convert values from the JPEG colour model to RGB

Tools for OFDM

  • qam4 - Quadrature amplitude modulation, order 4
  • iqam4 - Inverse QAM of order 4

For help, bug reports, suggestions etc. please visit http://github.com/ltfat/ltfat/issues