Title :
Improved Robust Mixed H2/H∞ Filtering for Uncertain Continuous-Time Systems
Author :
Liang He ; Aiguo Wu ; Guangren Duan
Author_Institution :
Center for Control Theor. & Guidance Technol., Harbin Inst. of Technol.
Abstract :
A strategy for robust mixed H2/Hinfin filtering problem, applied to a class of linear continuous-time systems containing linear fractional uncertainties is presented. By introducing some slack variables to the evaluation of robust H2and Hinfin performances, a less-conservative linear matrix inequality (LMI) based sufficient condition is obtained as compared to the existing characterizations. Also, a less-conservative design is achieved when applying the improved matrix inequality conditions to the robust filter design
Keywords :
Hinfin control; continuous time systems; control system synthesis; filtering theory; linear matrix inequalities; linear systems; robust control; uncertain systems; linear matrix inequality; robust filter design; robust mixed H2/Hinfin filtering; uncertain continuous-time systems; Filtering; Linear matrix inequalities; Lyapunov method; Nonlinear filters; Riccati equations; Robust stability; Robustness; Symmetric matrices; Uncertainty; Vectors; Continuous-time systems; Linear fractional uncertainty; Linear matrix inequalities; Robust mixed H;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1712793
