FPID_RECS Approximate BIBO stability rectangle for FOPID control system Usage: [P1_LIMS,P2_LIMS]=FPID_RECS[P1,P2,DP,INIT,CL_POLY_FUN,OP) where P1_LIMS, P2_LIMS - stability limits of first and second coord. P1, P2 - string with first and second coordinates to sweep, may be one of 'Kp', 'Ki', 'Kd', 'lambda', or 'mu', NB! All parameter names are case-sensitive! DP - sweeping step, either scalar or vector of form [DP1; DP2], INIT - structure with initial coordinate of the form INIT.Kp = ..., INIT.Ki = ..., etc., NB! Parameter names are defined exactly as above. CL_POLY_FUN - a function handle which must accept five arguments in the form (Kp,Ki,Kd,lambda,mu) and return a fotf object having the closed-loop pole polynomial corresponding to the control system with the FPID controller OP - Structure with additional options (optional): OP.maxPoints = N, where N is the points to check from the center point in every direction (i.e. from initial coordinates), default: 100, OP.displayPlot = 0 or 1 - draw the approximate stability region. OP.progress = 0 or 1 - display progress of computation OP.drawUnstable= 0 or 1 - draw unstable points on the stability plane (this only works if displayPlot is activated.) The algorithm uses Matignon's stability theorem to determine BIBO stability of closed-loop commensurate-order systems with parallel form FOPID controllers in the loop. If systems are not commensurate-order, the stability test my produce unreliable results. See also: fotf/isstable, fpid_recs_ini

- isstable ISSTABLE Check fractional-order system stability
- plot PLOT Plot the observed experimental results in the time domain.
- pbar PBAR Progress bar with remaining time estimation%
- plot PLOT Plots the generated signal sequence
- cfieldexists CFIELDEXISTS Check if a field (given by a string) in a structure exists

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