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Unformatted text preview: K for stability. (a) ) 3 )( 1 )( 1 ( ) 2 ( 3 ) ( + + + = s s s s K s G , 1 = H (b) ) 10 )( 1 ( ) ( + + = s s s K s G , 1 = H (c) ) 3 ( ) ( 2 + = s s K s G , ) 6 ( ) ( + = s s H You can use Matlab to draw the polar part of the Nyquist plot, but calculate the real-axis crossing points analytically....
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- Fall '08