S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Others_기계항공공학부
An Extended Robust H∞ Filter for Nonlinear Constrained Uncertain System
- Seo, Jaewon; Yu, Myeong-Jong; Park, Chan Gook; Lee, Jang Gyu
- Issue Date
- International Conference on Control, Automation, and Systems, Oct. 22-25, Gyeonju.
- extended robust H∞ filter; nonlinear estimation; robust estimation; nonlinear uncertain system
- In this paper, a robust filter is proposed to effectively estimate the system states in the case where system model
uncertainties as well as disturbances are present. The proposed robust filter is constructed based on the linear approximation
methods for a general nonlinear uncertain system with an integral quadratic constraint. We also derive the important characteristic
of the proposed filter, a modified H∞ performance index. Analysis results show that the proposed filter has robustness against
disturbances, such as process and measurement noises, and against parameter uncertainties. Simulation results show that the
proposed filter effectively improves the performance.
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