Function or variable 'rscale' not recognised.
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A = [ 0 1 0
980 0 -2.8
0 0 -100 ];
B = [ 0
0
100 ];
C = [ 1 0 0 ];
poles = eig(A)
t = 0:0.01:2;
u = zeros(size(t));
x0 = [0.01 0 0];
sys = ss(A,B,C,0);
[y,t,x] = lsim(sys,u,t,x0);
plot(t,y)
title('Open-Loop Response to Non-Zero Initial Condition')
xlabel('Time (sec)')
ylabel('Ball Position (m)')
p1 = -10 + 10i;
p2 = -10 - 10i;
p3 = -50;
K = place(A,B,[p1 p2 p3]);
sys_cl = ss(A-B*K,B,C,0);
lsim(sys_cl,u,t,x0);
xlabel('Time (sec)')
ylabel('Ball Position (m)')
p1 = -20 + 20i;
p2 = -20 - 20i;
p3 = -100;
K = place(A,B,[p1 p2 p3]);
sys_cl = ss(A-B*K,B,C,0);
lsim(sys_cl,u,t,x0); xlabel('Time (sec)')
ylabel('Ball Position (m)')
t = 0:0.01:2;
u = 0.001*ones(size(t));
sys_cl = ss(A-B*K,B,C,0);
lsim(sys_cl,u,t); xlabel('Time (sec)')
ylabel('Ball Position (m)')
axis([0 2 -4E-6 0])
Nbar = rscale(sys,K)
Function or variable 'rscale' is not recognised by matlab. I get an error like this.
However, the url above has this code description. How can I use it?
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回答(1 个)
Rik
2023-6-12
As it says right on that page:
"Note that this function is not standard in MATLAB. You will need to download it here, rscale.m, and save it to your current workspace."
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