?? pfr_pend.m
字號:
% Singular Value Plots of the perturbed pendulum models
%
[A,B,C,D] = mod_pend;
G = pck(A,B,C,D);
omega = logspace(-1,2,100);
hold off
%
[d1,d2,d3,d4,d5,d6] = ndgrid([-1 0 1],[-1 0 1],[-1 0 1], ...
[-1 0 1],[-1 0 1],[-1 0 1]);
for j = 1:729
delta = diag([d1(j),d2(j),d3(j),d4(j),d5(j),d6(j)]);
olp = starp(delta,G);
olp_ic = sel(olp,[1:3],[1:2]);
olp_g = vsvd(frsp(olp_ic,omega));
figure(1)
vplot('liv,lm',sel(olp_g,1,1),'r-', ...
sel(olp_g,2,1),'c-')
tmp1 = 'Singular value plots of the';
tmp2 = ' perturbed pendulum models';
title([tmp1 tmp2]);
xlabel('Frequency (rad/sec)')
hold on
end
hold off
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