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Unformatted text preview: the unit step response will be much higher than it would be predicted by the . 3 If the sampling frequency is high, a plot of c(kT) is very similar to c(t). It is not otherwise. Increasing sampling period T adversely affect the systems relative stability. A rule of thumb is to sample eight to ten times during a cycle of the damping sinusoidal oscillations of the output of the closedloop system, if it is underdamped. For overdamped systems, sample eight to ten times during the rise time in the step response. 4 Design discrete time control systems using Root locus Example 2....
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 Three '08
 ZHENWEI

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