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- Traitement du Signal
- How to
- fft
- Signal
- analpf
- bilt
- buttmag
- casc
- cepstrum
- cheb1mag
- cheb2mag
- chepol
- convol
- corr
- cspect
- czt
- detrend
- dft
- ell1mag
- eqfir
- eqiir
- faurre
- ffilt
- fft2
- fftshift
- filt_sinc
- filter
- find_freq
- findm
- frfit
- frmag
- fsfirlin
- group
- hank
- hilb
- hilbert
- iir
- iirgroup
- iirlp
- intdec
- jmat
- kalm
- lattn
- lattp
- lev
- levin
- lindquist
- mese
- mfft
- mrfit
- %asn
- %k
- %sn
- phc
- pspect
- remez
- remezb
- rpem
- sincd
- srfaur
- srkf
- sskf
- syredi
- system
- trans
- wfir
- wiener
- wigner
- window
- yulewalk
- zpbutt
- zpch1
- zpch2
- zpell
Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
However, this page did not exist in the previous stable version.
Signal
Signal manual description
Filters
- analpf
analog low-pass filter
- buttmag
squared magnitude response of a Butterworth filter
- casc
creates cascade realization of filter
- cheb1mag
square magnitude response of a type 1 Chebyshev filter
- cheb2mag
square magnitude response of a type 1 Chebyshev filter
- chepol
recursive implementation of Chebychev polynomial
- convol
convolution of 2 discrete series
- ell1 mag
squared magnitude of an elliptic filter
- eqfir
minimax multi-band, linear phase, FIR filter
- eqiir
design of iir filter
- faurre
optimal lqg filter.
- lindquis
optimal lqg filter lindquist algorithm
- ffilt
FIR low-pass,high-pass, band-pass, or stop-band filter
- filter
compute the filter model
- find_freq
parameter compatibility for elliptic filter design
- findm
for elliptic filter design
- frmag
magnitude of the frequency responses of FIR and IIR filters.
- fsfirlin
design of FIR, linear phase (frequency sampling technique)
- fwiir
optimum design of IIR filters in cascade realization,
- iir
designs an iir digital filter using analog filter designs.
- iirgroup
group delay of iir filter
- iirlp
Lp IIR filters optimization
- group
calculate the group delay of a digital filter
- remezb
minimax approximation of a frequency domain magnitude response.
- kalm
Kalman update and error variance
- lev
resolve the Yule-Walker equations :
- levin
solve recursively Toeplitz system (normal equations)
- srfaur
square-root algorithm for the algebraic Riccati equation.
- srkf
square-root Kalman filter algorithm
- sskf
steady-state Kalman filter
- system
generates the next observation given the old state
- trans
transformation of standardized low-pass filter into low-pass, high-pass, band-pass, stop-band.
- wfir
linear-phase windowed FIR low-pass, band-pass, high-pass, stop-band
- wiener
Wiener estimate (forward-backward Kalman filter formulation)
- wigner
time-frequency wigner spectrum of a signal.
- window
calculate symmetric window
- zpbutt
Butterworth analog filter
- zpch1
poles of a type 1 Chebyshev analog filter
- zpch2
poles and zeros of a type 2 Chebyshev analog filter
- zpell
poles and zeros of prototype lowpass elliptic filter
Spectral estimation
- corr
correlation coefficients
- cspect
spectral estimation using the modified periodogram method.
- czt
chirp z-transform algorithm
- intdec
change the sampling rate of a 1D or 2D signal
- mese
calculate the maximum entropy spectral estimate
- pspect
auto and cross-spectral estimate
- wigner
Wigner-Ville time/frequency spectral estimation
Transforms
- dft
discrete Fourier transform
- fft
fast flourier transform
- hilb
Hilbert transform centred around the origin.
- hank
hankel matrix of the covariance sequence of a vector process
- mfft
fft for a multi-dimensional signal
Identification
- lattn,lattp
recursive solution of normal equations
- phc
State space realisation by the principal hankel component approximation method,
- rpem
identification by the recursive prediction error method
Miscellaneous
- sinc
calculate the function sin(2*pi*fl*t)/(pi*t)
- sincd
calculates the function Sin(N*x)/Sin(x)
- %k
Jacobi's complete elliptic integral
- %asn
.TP the elliptic integral :
- %sn
Jacobi 's elliptic function with parameter m
- bilt
bilinear transform or biquadratic transform.
- jmat
permutes block rows or block columns of a matrix
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