%P 3175-3182
%I Asian Network for Scientific Information
%A L.D. Tufa
%A M. Ramasamy
%A M. Shuhaimi
%V 10
%T Closed-loop system identification using OBF-ARMAX model
%J Journal of Applied Sciences
%L scholars1361
%O cited By 4
%R 10.3923/jas.2010.3175.3182
%N 24
%D 2010
%K Adaptive control systems; Closed loop systems; Feedback; Feedback control; Identification (control systems), ARMAX; Closed loop identification; Feedback controller; Identification scheme; Model parameters; Multi-step-ahead predictions; Open loop unstable process; Open loop unstable systems, Closed loop control systems
%X Closed-loop identification scheme using OBF-ARMAX model structure is presented. The proposed structure can be used to identify both open-loop stable and open-loop unstable processes that are stabilized by a feedback controller. The algorithm for estimating the model parameters and the formula for the multi-step ahead prediction are derived. The proposed identification scheme is demonstrated using two simulation case studies: One for open-loop stable and another for open-loop unstable. Both case studies demonstrate that the proposed scheme can be effectively used for closed-loop identification of both open-loop stable and open-loop unstable systems that are stabilized by a feedback control system. © 2010 Asian Network for Scientific Information.