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Diffstat (limited to 'modules/cacsd/macros/macglov.sci')
-rwxr-xr-x | modules/cacsd/macros/macglov.sci | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/modules/cacsd/macros/macglov.sci b/modules/cacsd/macros/macglov.sci new file mode 100755 index 000000000..76468d098 --- /dev/null +++ b/modules/cacsd/macros/macglov.sci @@ -0,0 +1,43 @@ +// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab +// Copyright (C) INRIA - F. Delebecque +// +// This file must be used under the terms of the CeCILL. +// This source file is licensed as described in the file COPYING, which +// you should have received as part of this distribution. The terms +// are also available at +// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt + +function [P,r]=macglov(Sl) + //[P,r]=macglov(Sl) + //Standard plant for the Glover-McFarlane problem: + // for this problem mu_optimal = 1-hankel_norm([N,M]) + // with [N,M]=LCF(Sl) (Normalized coprime factorization) + // gama_optimal = 1/sqrt(mu_optimal) + //! + if argn(2)<1 then + error(msprintf(gettext("%s: Wrong number of input arguments: %d expected.\n"),.. + "macglov",1)) + end + + if and(typeof(Sl)<>["rational","state-space"]) then + error(msprintf(gettext("%s: Wrong type for input argument #%d: Linear state space or a transfer function expected.\n"),"macglov",1)) + end + if Sl.dt<>"c" then + error(msprintf(gettext("%s: Wrong type for argument #%d: In continuous time expected.\n"),"macglov",1)) + end + flag=0; + if typeof(Sl)=="rational" then Sl=tf2ss(Sl),flag=1;end + [A,B,C,D]=abcd(Sl);[n,nb]=size(B);[nc,n]=size(C); + r=size(D); + [Z,H]=gfare(Sl); + R1=eye()+D*D'; + R12=sqrtm(R1); + Ap=A; + Bp=[-H*R12,B]; + Cp=[C;0*ones(nb,n);C]; + Dp=[R12,0*C*B; + 0*ones(nb,nc),eye(nb,nb); + R12,D]; + P=syslin("c",Ap,Bp,Cp,Dp); + if flag==1 then P=ss2tf(P);end +endfunction |