DP13.2 A disk drive read-write head-positioning system has a system as shown in Figure P13.10 [11]. The pro

cess transfer function is

Gp($)= 2 9 +0.85s+788 Accurate control using a digital compensator is required. Let T = 10 ms and design a compensa- tor, D(z), using (a) the G(s) - to - D(z) conversion method and (b) the root locus method.