Question: A disk drive read-write head-positioning system has a system. The process transfer function is Accurate control using a digital compensator is required. Let T =

A disk drive read-write head-positioning system has a system. The process transfer function is

Accurate control using a digital compensator is required. Let T = 10 ms and design a compensator, D(z), using (a) the Gc(s)-to-D(z) conversion method and (b) the root locus method.

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