On the basis of control scheme of autopilot, control law of stable loop and guidance law of automatic guidance system are given. Moreover, pro-proportional guidance law is realized by computer.

Mitchell's roadmap aims at keeping applications (and environments) stable yet promoting faster delivery cycles in a quick feedback loop. The proposed roadmap is composed of 5 steps.

Normal dynamic compensators are designed so that the closed-loop systems consisting of the original systems and the compensators are asymptotically stable and have no impulse effect.