Signal package

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The signal package is part of the Octave Forge project and provides signal processing algorithms for use with Octave. The functions provided by the signal package include creation of waveforms, FIR and IIR filter design, spectral analysis, Fourier and other transforms, window functions, and resampling and rate changing.

Missing Functions[edit]

This is a list of functions that are not yet implemented in the Octave signal package. This list is subject to change and may not be complete in any sense. However, it is a starting point when looking for missing functionality or for possible projects to work on.

Signals[edit]

  • demod
  • modulate
  • seqperiod
  • shiftdata
  • strips
  • udecode
  • uencode
  • unshiftdata
  • vco

Signal Measurement[edit]

  • bandpower
  • dutycycle
  • enbw
  • falltime
  • midcross
  • overshoot
  • peak2peak
  • peak2rms
  • pulseperiod
  • pulsesep
  • pulsewidth
  • risetime
  • rms
  • rssq
  • settlingtime
  • sfdr
  • slewrate
  • statelevels
  • undershoot

Filter Analysis[edit]

  • filternorm
  • filtord
  • firtype
  • impzlength
  • isallpass
  • islinphase
  • ismaxphase
  • isminphase
  • isstable
  • phasedelay
  • phasez
  • stepz
  • zerophase

Filter Conversion[edit]

  • cell2sos
  • filt2block
  • latc2tf
  • latcfilt
  • realizemdl
  • sos2cell
  • sos2ss
  • ss2sos
  • tf2latc
  • tf2zpk

IIR Filter Design[edit]

  • lp2bp
  • lp2bs
  • lp2hp
  • lp2lp
  • yulewalk

FIR Filter Design[edit]

  • cfirpm
  • equiripple
  • fircls
  • fircls1
  • firpm
  • firpmord
  • firrcos
  • freqsamp
  • gaussfir
  • intfilt
  • kaiserwin
  • maxflat
  • polyscale

Transforms[edit]

  • goertzel
  • icceps

Spectral Analysis[edit]

  • cconv
  • corrmtx
  • db
  • db2mag
  • db2pow
  • mag2db
  • pcov
  • peig
  • pmcov
  • pmtm
  • pmusic
  • pow2db
  • rooteig
  • rootmusic
  • spectrogram

Window Functions[edit]

  • dpss
  • dpssclear
  • dpssdir
  • dpssload
  • taylorwin

System Identification[edit]

  • ac2poly
  • ac2rc
  • arcov
  • armcov
  • corrmtx
  • is2rc
  • lar2rc
  • lpc
  • lsf2poly
  • poly2ac
  • poly2lsf
  • poly2rc
  • polyscale
  • prony
  • rc2ac
  • rc2is
  • rc2lar
  • rc2poly
  • rlevinson
  • schurrc
  • stmcb

Classdef-based Filter Design[edit]

  • design
  • designmethods
  • designopts
  • fdesign
  • fdesign.arbmag
  • fdesign.bandpass
  • fdesign.bandstop
  • fdesign.differentiator
  • fdesign.highpass
  • fdesign.hilbert
  • fdesign.lowpass
  • fdesign.pulseshaping
  • setspecs
  • validstructures
  • window

Interactive Design Tools[edit]

  • dspfwiz
  • fdatool
  • filterbuilder
  • fvtool
  • sptool
  • wintool
  • wvtool