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Unformatted text preview: H a . i) s 1 s +1 ii) s 2 2 s +1 s 2 + 2 s +1 iii) ( s 1) ( s 2 2 s +1 ) ( s +1) ( s 2 + 2 s +1 ) For each case, let H = H d H a , where H d was obtained in problem 1). a) Find the poles and zeros of H . b) Using MATLAB, draw Bode plots for H d and H. Also plot y d ( t ) and ( 1) n y ( t ) , where y d and y are the step responses corresponding to H d and H, and n is the order of H a . For case i), this is done by entering xi = ; wn = n ; hw 33 i . Compare the responses of the minimumphase and the nonminimumphase systems. Print the graphs and identify which correspond to H d and H. Repeat a) and b) for cases ii) and iii) using the commands xi = ; wn = n ; hw 33 ii and xi = ; wn = n ; hw 33 iii ....
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 Spring '08
 cobb

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