flc.m

FISMAT accommodates different arithmetic operators, fuzzification and defuzzification algorithm, imp

function sk = flc(ek,x,ts)

% sk = flc(ek,x,ts)
%
% Discrete fuzzy-P-controller.
% 
% ek   = e(k) - current input value at the sample step k.
% x(1) = input e(k-1).
% x(2) = output s(k-1).
% x(3) = e(k-2).
% ts   = sampling time.
% sk   = output s(k).

% FSTB - Fuzzy Systems Toolbox for MATLAB
% Copyright (c) 1993-1996 by Olaf Wolkenhauer
% Control Systems Centre at UMIST
% Manchester M60 1QD, UK
%
% 20-April-1994
 
global ESET OSET

ef =fuzzsiyi(ESET,ek(1));

rb=ef';

% Defuzzification from Siler and Ying. 
% (Output sets are singletons)
sk=OSET*rb;
%sk=sk/sum(rb);