Title :
Output feedback controllers of suboptimality degree β
Author :
Skelton, R.E. ; Xu, J.-H.
Author_Institution :
Sch. of Aeronaut. & Astronaut., Purdue Univ., West Lafayette, IN, USA
fDate :
12/1/1990 12:00:00 AM
Abstract :
A misconception in a recent paper by D.Z. Zheng (1989) about suboptimal feedback control is highlighted. A novel synthesis method for designing output feedback controllers of suboptimality degree β is developed. These controllers yield a cost value equal to or less than a scalar multiple (β) times the cost value obtained by optimal linear quadratic state feedback control. The output feedback control gains are explicit in terms of the standard Riccati equation when certain conditions are satisfied
Keywords :
control system synthesis; feedback; optimal control; Riccati equation; control gains; linear quadratic state feedback; optimal control; suboptimal feedback control; Calculus; Communication system control; Cost function; Differential equations; Hilbert space; Logistics; Optimal control; Output feedback; Riccati equations; State feedback;
Journal_Title :
Automatic Control, IEEE Transactions on
