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- function [ab,bb,cb,db] = augstate(a,b,c,d)
- %AUGSTATE Augment states to the outputs of a state space system.
- % [Ab,Bb,Cb,Db] = AUGSTATE(A,B,C,D) appends the states to the
- % outputs of the system (A,B,C,D). The resulting system is:
- % .
- % x = Ax + Bu
- %
- % |y| = |C| x + |D| u
- % |x| |I| |0|
- %
- % This command prepares the plant so that the FEEDBACK command can
- % be used to form the closed loop system with a full state feedback
- % gain matrix.
- %
- % See also: PARALLEL,SERIES,FEEDBACK, and CLOOP
-
- % Clay M. Thompson 6-26-90
- % Copyright (c) 1986-93 by the MathWorks, Inc.
-
- error(nargchk(4,4,nargin));
- error(abcdchk(a,b,c,d));
-
- [na,ma] = size(a);
- [n,m] = size(b);
- ab = a; bb = b;
- cb = [c;eye(na)];
- db = [d;zeros(na,m)];
-