Stabilization of an Unstable Plant by Pole Allocation, Observer Theory, and Active Networks

This paper considers the design and implementation of a controller to stabilize a single-input single-output unstable plant using pole-assignment technique and observer theory. First, assuming that the state variables are available for feedback, the pole-assignment technique is used to determine the feedback gains required to achieve a desired set of closed-loop poles. This assumption is relaxed and an observer is designed to estimate the control law using output feedback. The unstable plant is simulated on a TR48 analog computer with the controller in the feedback loop. Active network implementation of the controller is discussed.