Overview
Comment:Includes u0 argument.
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SHA3-256: e40d837faa34ef77d767023f4676e1b3785ecac71ef58cf788d35e1dfb7af003
User & Date: gawthrop@users.sourceforge.net on 1996-08-15 10:24:28
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Context
1996-08-15
11:52:42
Now creats a number of versions:
fr complex frequency response
lmfr log magnitude of fr
lpfr phase of fr
nyfr real and imag parts - Nyquist style
nifr Nichols style. check-in: d6652c7f68 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
10:24:28
Includes u0 argument. check-in: e40d837faa user: gawthrop@users.sourceforge.net tags: origin/master, trunk
09:37:58
Parameters in title. check-in: 6aba71bfa0 user: gawthrop@users.sourceforge.net tags: origin/master, trunk
Changes
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Modified mttroot/mtt/bin/trans/m/dm2fr.m from [97095c6b51] to [5190b9bd8e]. 

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function  fr = dm2fr(A,B,C,D,E,W)
% fr = dm2fr(A,B,C,D,E,W)
% Descriptor matrix to frequency response.
% A,B,C,D,E - descriptor matrices
% W vector of frequency points


% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$



% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%



N = length(W);
[Ny,Nu] = size(D);

NN=Ny*Nu;



fr = zeros(N,NN);
i = 0;
for w = W
  i = i+1;
  FR = C*( (E*j*w - A) \ B ) + D;
  fr(i,:) = reshape(FR,1,NN);
end;










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function  fr = dm2fr(A,B,C,D,E,W,u0)
% fr = dm2fr(A,B,C,D,E,W,u0)
% Descriptor matrix to frequency response.
% A,B,C,D,E - descriptor matrices
% W vector of frequency points
% u0 input gain vector: u = u0*unit phasor

% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% Version control history
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %% $Id$
% %% $Log$
% %% Revision 1.1  1996/08/10 14:11:28  peter
% %% Initial revision
% %%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

[Ny,Nu] = size(D);
[Ny,Nx] = size(C);
N = length(W);

if nargin<7
  u0 = zeros(Nu,1);
  u0(1) = 1;
end;

fr = zeros(N,Ny);
i = 0;
for w = W
  i = i+1;
  FR = C*( (E*j*w - A) \ B ) + D;
  fr(i,:) = FR';
end;

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