8.6-1. Consider the system of Problem 8.4-1. (a) Design a unity-dc-gain phase-lead compensator that yields a phase margin of approximately 45°. (b) Obtain the system step response of part (a) using MATLAB, and find the rise time t, and the percent overshoot. (c) Compare the step-response parameters of part (b) with Problem 8-2(c) and (e).

Fig: 1