Title :
Subspace based identification of unstable systems
Author :
Sendrescu, D. ; Selisteanu, D. ; Marin, C.
Author_Institution :
Dept. of Autom. Control, Univ. of Craiova, Craiova
Abstract :
This paper deals with subspace-based identification of unstable systems. Because the system is unstable, we will assume the experimental data are generated under stabilizing feedback. In order to remove the effect of noise an orthogonal projection is used. The system state space matrices are recovered from the extended observability matrix. The subspace-based identification algorithm is tested on a real flexible beam experiment.
Keywords :
feedback; matrix algebra; observability; stability; extended observability matrix; orthogonal projection; real flexible beams; subspace-based identification; system state space matrices; unstable system identification; Convergence of numerical methods; Feedback; Iterative algorithms; Linear algebra; Linear systems; Observability; Proportional control; State-space methods; System identification; System testing;
Conference_Titel :
Automation, Quality and Testing, Robotics, 2008. AQTR 2008. IEEE International Conference on
Conference_Location :
Cluj-Napoca
Print_ISBN :
978-1-4244-2576-1
Electronic_ISBN :
978-1-4244-2577-8
DOI :
10.1109/AQTR.2008.4588812
