6[1].25,6.51,6.57

6[1].25,6.51,6.57 -...

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Problem 6 Problem 6.25 Using the MATLAB command ‘[GM PM] =margin(sys)’ we find GM = 1.57 and PM = 100.55 From the Bode plot it can be observed that the gain margin is so small that a slight increase in gain may result in unstable closed loop system. The phase on the other hand has more room for phase uncertainties. Hence it can be concluded that the gain margin is the more important margin for this system. file:///C|/WINDOWS/profiles/jmcall1/Desktop/Problem%206.htm10/27/2004 7:49:57 AM
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Unformatted text preview: file:///C|/WINDOWS/profiles/jmcall1/Desktop/6.51.htm file:///C|/WINDOWS/profiles/jmcall1/Desktop/6.51.htm10/27/2004 8:18:45 AM file:///C|/WINDOWS/profiles/jmcall1/Desktop/6.35.htm file:///C|/WINDOWS/profiles/jmcall1/Desktop/6.35.htm (1 of 2)10/27/2004 8:10:11 AM file:///C|/WINDOWS/profiles/jmcall1/Desktop/6.35.htm file:///C|/WINDOWS/profiles/jmcall1/Desktop/6.35.htm (2 of 2)10/27/2004 8:10:11 AM...
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6[1].25,6.51,6.57 -...

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