init

FOTF Toolbox/@fotf/sigma.m

@@ -0,0 +1,20 @@
+function sigma(G,w)
+% sigma - singular value plots of a MIMO FOTF object
+%
+%   sigma(G,w)
+% 
+%   G - a MIMO FOTF object
+%   w - a frequency vector
+
+% Copyright (c) Dingyu Xue, Northeastern University, China
+% Last modified 28 March, 2017 
+% Last modified 18 May, 2022 
+   if nargin==1, w=logspace(-4,4); end
+   H=bode(G,w); subplot(111); h1=[]; H1=H;
+   h=H.ResponseData; [n,m,k]=size(h);
+   for i=1:k, h1=[h1, svd(h(:,:,i))]; end
+   for i=1:min([n,m]) 
+      h2(1,1,:)=h1(i,:).'; H1.ResponseData=h2; bodemag(H1), hold on
+   end
+   hold off
+end