Signal manual description
: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.
: :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 :
: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 :
: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 :
: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 :
: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 :