Scilab Online Help
5.5.1 - English

• Scilab Help
• Scilab
• Differential calculus, Integration
• Elementary Functions
• Linear Algebra
• Interpolation
• CACSD (Computer Aided Control Systems Design)
• Polynomials
• Signal Processing
• FFTW
• Special Functions
• Randlib
• ARnoldi PACKage (ARPACK binding)
• Statistics
• Sparse Matrix
• UMFPACK Interface (sparse)
• Optimization and Simulation
• Genetic Algorithms
• Simulated Annealing
• XML Management
• HDF5 Management
• Files : Input/Output functions
• Input/Output functions
• Graphics
• Graphics : exporting and printing
• GUI
• Data Structures
• Parameters
• Boolean
• Integers
• Strings
• Sound file handling
• Time and Date
• Output functions
• Xcos
• Spreadsheet
• Console
• History manager
• Matlab binary files I/O
• Matlab to Scilab Conversion Tips
• Compatibility Functions
• Advanced functions
• Development tools
• Demo Tools
• Dynamic/incremental Link
• ATOMS
• Tcl/Tk Interface
• Text editor (Scinotes)
• UI Data
• Online help management
• Parallel
• Modules manager
• Scilab MPI
• Localization
• API Scilab
• call_scilab API (Scilab engine)
• Java Virtual Machine (JVM)
• Java from Scilab
• Java Interface
• Intersci
• Preferences
• Windows tools

Please note that the recommended version of Scilab is 2025.0.0. This page might be outdated.
See the recommended documentation of this function

Scilab Help >> Signal Processing

Signal Processing

• filters
  • analpf — create analog low-pass filter
  • buttmag — Power transmission of a Butterworth filter
  • casc — cascade realization of filter from coefficients
  • cheb1mag — response of Chebyshev type 1 filter
  • cheb2mag — response of type 2 Chebyshev filter
  • convol — convolution
  • ell1mag — magnitude of elliptic filter
  • eqfir — minimax approximation of FIR filter
  • eqiir — Design of iir filters
  • faurre — filter computation by simple Faurre algorithm
  • ffilt — coefficients of FIR low-pass
  • filter — filters a data sequence using a digital filter
  • find_freq — parameter compatibility for elliptic filter design
  • frmag — magnitude of FIR and IIR filters
  • fsfirlin — design of FIR, linear phase filters, frequency sampling technique
  • group — group delay for digital filter
  • iir — iir digital filter
  • iirgroup — group delay Lp IIR filter optimization
  • iirlp — Lp IIR filter optimization
  • kalm — Kalman update
  • lev — Yule-Walker equations (Levinson's algorithm)
  • levin — Toeplitz system solver by Levinson algorithm (multidimensional)
  • lindquist — Lindquist's algorithm
  • remez — Remez exchange algorithm for the weighted chebyshev approximation of a continuous function with a sum of cosines.
  • remezb — Minimax approximation of magnitude response
  • srfaur — square-root algorithm
  • srkf — square root Kalman filter
  • sskf — steady-state Kalman filter
  • syredi — Design of iir filters, syredi code interface
  • system — observation update
  • trans — low-pass to other filter transform
  • wfir — linear-phase FIR filters
  • wiener — Wiener estimate
  • wigner — 'time-frequency' wigner spectrum
  • window — compute symmetric window of various type
  • yulewalk — least-square filter design
  • zpbutt — Butterworth analog filter
  • zpch1 — Chebyshev analog filter
  • zpch2 — Chebyshev analog filter
  • zpell — lowpass elliptic filter
• How to
  • How to design an elliptic filter — How to design an elliptic filter (analog and digital)
• identification
  • lattn — recursive solution of normal equations
  • lattp — Identification of MA part of a vector ARMA process
  • phc — Markovian representation
  • rpem — Recursive Prediction-Error Minimization estimation
• miscellaneous
  • bilt — bilinear or biquadratic transform SISO system given by a zero/poles representation
  • jmat — row or column block permutation. This function is obsolete.
  • sincd — digital sinc function or Direchlet kernel
• spectral_estimation
  • corr — correlation, covariance
  • cspect — two sided cross-spectral estimate between 2 discrete time signals using the correlation method
  • czt — chirp z-transform algorithm
  • intdec — Changes sampling rate of a signal
  • mese — maximum entropy spectral estimation
  • pspect — two sided cross-spectral estimate between 2 discrete time signals using the Welch's average periodogram method.
• transforms
  • idct — Inverse discrete cosine transform.
  • idst — Inverse discrete sine transform.
  • ifft — fast Fourier transform.
  • hank — covariance to hankel matrix
  • hilb — FIR approximation to a Hilbert transform filter
  • mfft — multi-dimensional fft. This function is obsolete.
• cepstrum — cepstrum calculation
• conv — discrete 1-D convolution.
• conv2 — discrete 2-D convolution.
• convol2d — discrete 2-D convolution, using fft.
• detrend — remove constant, linear or piecewise linear trend from a vector
• fft2 — two-dimension fast Fourier transform
• fftshift — rearranges the fft output, moving the zero frequency to the center of the spectrum
• filt_sinc — samples of sinc function
• frfit — frequency response fit
• hilbert — Discrete-time analytic signal computation of a real signal using Hilbert transform
• ifftshift — inverse of fftshift
• mrfit — frequency response fit
• wfir_gui — Graphical user interface that can be used to interactively design wfir filters
• xcorr — Computes discrete auto or cross correlation
• xcov — Computes discrete auto or cross covariance

Report an issue
<< Polynomials	Scilab Help	FFTW >>

---