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Scilab help >> CACSD (Computer Aided Control Systems Design)

CACSD (Computer Aided Control Systems Design)

  • Formal representations and conversions
    • abcd — state-space matrices
    • cont_frm — transfer to controllable state-space
    • dbphi — frequency response to phase and magnitude representation
    • des2ss — descriptor to state-space
    • des2tf — descriptor to transfer function conversion
    • frep2tf — transfer function realization from frequency response
    • lsslist — Scilab linear state space function definition
    • markp2ss — Markov parameters to state-space
    • sm2des — system matrix to descriptor
    • sm2ss — system matrix to state-space
    • ss2des — (polynomial) state-space to descriptor form
    • ss2ss — state-space to state-space conversion, feedback, injection
    • ss2tf — conversion from state-space to transfer function
    • tf2des — transfer function to descriptor
    • tf2ss — transfer to state-space
  • Plot and display
    • black — Black-Nichols diagram of a linear dynamical system
    • bode — Bode plot
    • chart — Nichols chart
    • evans — Evans root locus
    • gainplot — magnitude plot
    • hallchart — Draws the Hall chart
    • m_circle — plots the complex plane iso-gain contours of y/(1+y) (obsolete)
    • nicholschart — Nichols chart
    • nyquist — nyquist plot
    • phaseplot — frequency phase plot
    • sgrid — s-plane grid lines.
    • show_margins — display gain and phase margin and associated crossover frequencies
    • svplot — singular-value sigma-plot
    • zgrid — zgrid plot
  • abinv — AB invariant subspace
  • arhnk — Hankel norm approximant
  • arl2 — SISO model realization by L2 transfer approximation
  • arma — Scilab arma library
  • arma2p — extract polynomial matrices from ar representation
  • arma2ss — transform an armax data structure into state space representation.
  • armac — Scilab description of an armax process
  • armax — armax identification
  • armax1 — armax identification
  • arsimul — armax simulation
  • augment — augmented plant
  • balreal — balanced realization
  • bilin — general bilinear transform
  • bstap — hankel approximant
  • cainv — Dual of abinv
  • calfrq — frequency response discretization
  • canon — canonical controllable form
  • ccontrg — Central H-infinity continuous time controller
  • cls2dls — bilinear transform
  • colinout — inner-outer factorization
  • colregul — removing poles and zeros at infinity
  • cont_mat — controllability matrix
  • contr — controllability, controllable subspace, staircase
  • contrss — controllable part
  • copfac — right coprime factorization of continuous time dynamical systems
  • csim — simulation (time response) of linear system
  • ctr_gram — controllability gramian
  • damp — Natural frequencies and damping factors.
  • dcf — double coprime factorization
  • ddp — disturbance decoupling
  • dhinf — H_infinity design of discrete-time systems
  • dhnorm — discrete H-infinity norm
  • dscr — discretization of linear system
  • dsimul — state space discrete time simulation
  • dt_ility — detectability test
  • dtsi — Continuous time dynamical systems stable anti-stable decomposition
  • equil — balancing of pair of symmetric matrices
  • equil1 — balancing (nonnegative) pair of matrices
  • feedback — feedback operation
  • findABCD — discrete-time system subspace identification
  • findAC — discrete-time system subspace identification
  • findBD — initial state and system matrices B and D of a discrete-time system
  • findBDK — Kalman gain and B D system matrices of a discrete-time system
  • findR — Preprocessor for estimating the matrices of a linear time-invariant dynamical system
  • findx0BD — Estimates state and B and D matrices of a discrete-time linear system
  • flts — time response (discrete time, sampled system)
  • fourplan — augmented plant to four plants
  • freq — frequency response
  • freson — peak frequencies
  • fspec — spectral factorization of continuous time dynamical systems
  • fspecg — stable factorization of continuous time dynamical systems
  • fstabst — Youla's parametrization of continuous time linear dynmaical systems
  • g_margin — gain margin and associated crossover frequency
  • gamitg — H-infinity gamma iterations for continuous time systems
  • gcare — Continuous time control Riccati equation
  • gfare — Continuous time filter Riccati equation
  • gfrancis — Francis equations for tracking
  • gtild — tilde operation
  • h2norm — H2 norm of a continuous time proper dynamical system
  • h_cl — closed loop matrix
  • h_inf — Continuous time H-infinity (central) controller
  • h_inf_st — static H_infinity problem
  • h_norm — H-infinity norm
  • hankelsv — Hankel singular values
  • hinf — H_infinity design of continuous-time systems
  • imrep2ss — state-space realization of an impulse response
  • inistate — Estimates the initial state of a discrete-time system
  • invsyslin — system inversion
  • kpure — continuous SISO system limit feedback gain
  • krac2 — continuous SISO system limit feedback gain
  • lcf — Continuous time dynamical systems normalized coprime factorization
  • leqr — H-infinity LQ gain (full state)
  • lft — linear fractional transformation
  • lin — linearization
  • linf — infinity norm
  • linfn — infinity norm
  • linmeq — Sylvester and Lyapunov equations solver
  • lqe — linear quadratic estimator (Kalman Filter)
  • lqg — LQG compensator
  • lqg2stan — LQG to standard problem
  • lqg_ltr — LQG with loop transform recovery
  • lqr — LQ compensator (full state)
  • ltitr — discrete time response (state space)
  • macglov — Continuous time dynamical systems Mac Farlane Glover problem
  • minreal — minimal balanced realization
  • minss — minimal realization
  • mucomp — mu (structured singular value) calculation
  • narsimul — armax simulation (using rtitr)
  • nehari — Nehari approximant of continuous time dynamical systems
  • noisegen — noise generation
  • nyquistfrequencybounds — Computes the frequencies for which the nyquist locus enters and leaves a given rectangle.
  • obs_gram — observability gramian
  • obscont — observer based controller
  • observer — observer design
  • obsv_mat — observability matrix
  • obsvss — observable part
  • p_margin — phase margin and associated crossover frequency
  • parrot — Parrot's problem
  • pfss — partial fraction decomposition
  • phasemag — phase and magnitude computation
  • plzr — pole-zero plot
  • pol2des — polynomial matrix to descriptor form
  • ppol — pole placement
  • prbs_a — pseudo random binary sequences generation
  • projsl — linear system projection
  • reglin — Linear regression
  • repfreq — frequency response
  • ric_desc — Riccati equation
  • ricc — Riccati equation
  • riccati — Riccati equation
  • routh_t — Routh's table
  • rowinout — inner-outer factorization
  • rowregul — removing poles and zeros at infinity
  • rtitr — discrete time response (transfer matrix)
  • sensi — sensitivity functions
  • sident — discrete-time state-space realization and Kalman gain
  • sorder — computing the order of a discrete-time system
  • specfact — spectral factor
  • ssprint — pretty print for linear system
  • st_ility — stabilizability test
  • stabil — stabilization
  • sysfact — system factorization
  • syslin — linear system definition
  • syssize — size of state-space system
  • time_id — SISO least square identification
  • trzeros — transmission zeros and normal rank
  • ui_observer — unknown input observer
  • unobs — unobservable subspace
  • zeropen — zero pencil
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with contributors 		Last updated:
Tue Apr 02 17:36:22 CEST 2013