The antenna positioning system described in Section 1.5 is shown in Fig. P1.5–1. In this problem we consider the yaw angle control system, where

θ(t) is the yaw angle. Suppose that the gain of the power amplifier is 10 V/V, and that the gear ratio and the angle sensor (the shaft encoder and the data hold) are such that

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v. (t) = 0.048(t) are degrees. Let v. (t) e(t) motor; the transfer function of the motor pedestal is given as where the units of are volts and of e(s) 20 E(s) s(s+6) = be the input voltage to the