A unified framework for LQ and H/sub /spl infin// preview control algorithms

A general framework to solve both the continuous and discrete-time LQ and H/sub /spl infin// preview control algorithms is presented in this paper. The obtained preview control form consists of a full-state feedback term which is identical to well known LQ and H/sub /spl infin// results. The preview terms utilizes previewable disturbance signals to improve tracking or regulation performance. Simulation results of the tracking control of a durability test rig are presented to illustrate the effectiveness of the proposed preview control laws.