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Control Systems using Matlab to Obtain Nyquist plot

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1) G(s) =
Use Matlab and obtain Nyquist Plot

2) G(s) =
Note: K does not equal Kv
Determine the phase margin, gain margin, and closed-loop bandwidth for each case. Determine these both graphically, from the appropriate bode plots, and using the Matlab functions margin and bandwidth

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The solution uses control systems on Matlab to obtain the Nyquist plot. The phase margin, gain margin and closed-loop bandwidth for each case is determined.