Digital control of an unstable plant

An unstable third-order system is controlled digitally by pole-assignment technique and observer theory. The unstable plant is simulated on an EAI 680 analog computer, and a DEC-10 minicomputer is used to implement the controller. The minimum sampling rate required for stable operation is determined.

[1]  Winfred K. N. Anakwa.  Stabilization of an Unstable Plant by Pole Allocation, Observer Theory, and Active Networks , 1981, IEEE Transactions on Industrial Electronics and Control Instrumentation.