Liste des fonctions de traitement du signal sous Matlab.

Signal Processing Toolbox.

Version 3.0b 10-Jan-94

diric - Dirichlet (periodic sinc) function.

sawtooth - Sawtooth function.

sinc - Sinc or sin(pi*x)/(pi*x) function

square - Square wave function.

abs - Magnitude.

angle - Phase angle.

conv - Convolution.

fftfilt - Overlap-add filter implementation.

filter - Filter implementation.

filtfilt - Zero-phase version of filter.

filtic - Determine filter initial conditions.

freqs - Laplace transform frequency response.

freqspace - Frequency spacing for frequency response.

freqz - Z-transform frequency response.

grpdelay - Group delay.

impz - Impulse response (discrete).

unwrap - Unwrap phase.

zplane - Discrete pole-zero plot.

convmtx - Convolution matrix.

poly2rc - Polynomial to reflection coefficients transformation.

rc2poly - Reflection coefficients to polynomial transformation.

residuez - Z-transform partial fraction expansion.

sos2ss - Second-order sections to state-space conversion.

sos2tf - Second-order sections to transfer function conversion.

sos2zp - Second-order sections to zero-pole conversion.

ss2sos - State-space to second-order sections conversion.

ss2tf - State-space to transfer function conversion.

ss2zp - State-space to zero-pole conversion.

tf2ss - Transfer function to state-space conversion.

tf2zp - Transfer function to zero-pole conversion.

zp2sos - Zero-pole to second-order sections conversion.

zp2ss - Zero-pole to state-space conversion.

zp2tf - Zero-pole to transfer function conversion.

besself - Bessel analog filter design.

butter - Butterworth filter design.

cheby1 - Chebyshev type I filter design.

cheby2 - Chebyshev type II filter design.

ellip - Elliptic filter design.

yulewalk - Yule-Walker filter design.

buttord - Butterworth filter order selection.

cheb1ord - Chebyshev type I filter order selection.

cheb2ord - Chebyshev type II filter order selection.

ellipord - Elliptic filter order selection.

fir1 - Window based FIR filter design - low, high, band, stop.

fir2 - Window based FIR filter design - arbitrary response.

firls - FIR filter design - arbitrary response with transition bands.

intfilt - Interpolation FIR filter design.

remez - Parks-McClellan optimal FIR filter design.

remezord - Parks-McClellan filter order selection.

czt - Chirp-z transform.

dct - Discrete cosine transform.

dftmtx - Discrete Fourier transform matrix.

fft - Fast Fourier transform.

fftshift - Swap vector halves.

hilbert - Hilbert transform.

idct - Inverse discrete cosine transform.

ifft - Inverse fast Fourier transform.

cohere - Coherence function estimate.

corrcoef - Correlation coefficients.

cov - Covariance matrix.

csd - Cross Spectral Density.

psd - Power Spectral Density.

spectrum - psd, csd, cohere and tfe combined.

tfe - Transfer function estimate.

xcorr - Cross-correlation function.

xcov - Covariance function.

bartlett - Bartlett window.

blackman - Blackman window.

boxcar - Rectangular window.

chebwin - Chebyshev window.

hamming - Hamming window.

hanning - Hanning window.

kaiser - Kaiser window.

triang - Triangular window.

invfreqs - Analog filter fit to frequency response.

invfreqz - Discrete filter fit to frequency response.

levinson - Levinson-Durbin recursion.

lpc - Linear Predictive Coefficients using autocorrelation method.

prony - Prony's discrete filter fit to time response.

stmcb - Steiglitz-McBride iteration for ARMA modeling.

ident - See also the Identification Toolbox.

cceps - Complex cepstrum.

decimate - Resample data at a lower sample rate.

deconv - Deconvolution.

demod - Demodulation for communications simulation.

interp - Resample data at a higher sample rate.

interp1 - General 1-D interpolation. (MATLAB Toolbox)

medfilt1 - 1-Dimensional median filtering.

modulate - Modulation for communications simulation.

rceps - Real cepstrum and minimum pahse reconstruction.

resample - Resample sequence with new sampling rate.

specgram - Spectrogram, for speech signals.

spline - Cubic spline interpolation.

vco - Voltage controlled oscillator.

besselap - Bessel filter prototype.

buttap - Butterworth filter prototype.

cheb1ap - Chebyshev type I filter prototype (passband ripple).

cheb2ap - Chebyshev ty[pe II filter prototype (stopband ripple).

ellipap - Elliptic filter prototype.

lp2bp - Lowpass to bandpass analog filter transformation.

lp2bs - Lowpass to bandstop analog filter transformation.

lp2hp - Lowpass to highpass analog filter transformation.

lp2lp - Lowpass to lowpass analog filter transformation.

bilinear - Bilinear transformation with optional prewarping.

impinvar - Impulse invariance analog to digital conversion.

conv2 - 2-D convolution.

cplxpair - Order vector into complex conjugate pairs.

detrend - Linear trend removal.

fft2 - 2-D fast Fourier transform.

fftshift - Swap quadrants of array.

ifft2 - Inverse 2-D fast Fourier transform.

polystab - Polynomial stabilization.

stem - Plot discrete data sequence.

strips - Strip plot.

xcorr2 - 2-D cross-correlation.

cztdemo - Chirp-z transform and FFT demonstration.

filtdemo - Filter design demonstration.

moddemo - Modulation/demodulation demonstration.

sosdemo - Second-order sections demonstration.