Title :
On semiglobal stabilizability of antistable systems by saturated linear feedback
Author :
Hu, Tingshu ; Lin, Zongli
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Univ., Charlottesville, VA, USA
fDate :
7/1/2002 12:00:00 AM
Abstract :
It was recently established that a second-order antistable linear system can be semiglobally stabilized on its null controllable region by saturated linear feedback and a higher order linear system with two or more antistable poles can be semiglobally stabilized on its null controllable region by more general bounded feedback laws. We will show in this note that a system with three real-valued antistable poles cannot be semiglobally stabilized on its null controllable region by the simple saturated linear feedback
Keywords :
controllability; feedback; linear systems; poles and zeros; stability criteria; antistable poles; bounded feedback laws; high-order linear system; null controllable region; real-valued antistable poles; saturated linear feedback; second-order antistable linear system; semiglobal stabilizability; Adaptive control; Adaptive filters; Adaptive signal processing; Automatic control; Communication system control; Convergence; Feedback; Frequency estimation; Rivers; Robust control;
Journal_Title :
Automatic Control, IEEE Transactions on
DOI :
10.1109/TAC.2002.800671
