Homework 4 Work pt.6 - Part b > > ylabel'Theta(degrees Backs > > sys 1a=tf(3 1 > > numx=0.8;denx=[1 0 > > sys1b=tf(numx denx > > sys1=sys1a sys 1b > >

Homework 4 Work pt.6 - Part b > > ylabel'Theta(degrees...

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Unformatted text preview: Part b) &gt; &gt; ylabel('Theta(degrees)') Backs &gt; &gt; sys 1a=tf(3, 1); &gt; &gt; numx=0.8;denx=[1 0]; &gt; &gt; sys1b=tf(numx, denx); &gt; &gt; sys1=sys1a+sys 1b; &gt; &gt; sys4 = series(sys1,sys2); &gt; &gt; sys5 = series(sys4, sys3); &gt; &gt; sys = feedback(sys5,[1]); En &gt; &gt; Z = Isim(sys, theat,t); &gt; &gt; plot(t, theat, 'R --' ) &gt; &gt; plot(t, theat,'R --',t,z) 15 Altitude vs Time 10 Altitude 5 2 3 5 6 7 8 9 10 time(sec) &gt; &gt; Act=Z(end); &gt; &gt; Error = ((Exp - Act)/Act)*100 Error = 0.9118 The steady state tracking error is much better using the PI controller compared to the constant gain controller....
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