Brief Robust H∞ filtering with error variance constraints for discrete time-varying systems with uncertainty

  • Authors:
  • Y. S. Hung;Fuwen Yang

  • Affiliations:
  • Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong;Department of Electrical and Electronic Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong and Department of Electrical Engineering, Fuzhou University, Fuzhou 350002, People's Repu ...

  • Venue:
  • Automatica (Journal of IFAC)
  • Year:
  • 2003

Quantified Score

Hi-index 22.16

Visualization

Abstract

The robust H"~ filtering problem with error variance constraints is considered for discrete time-varying systems subject to norm-bounded parameter uncertainties in both the state and the output matrices of the state-space model. Sufficient conditions for a finite-horizon filter to satisfy state estimation error variance constraints as well as prescribed H"~ performance for all admissible perturbations are given in terms of two discrete Riccati difference equations, which are of a form suitable for recursive computation. The results are extended to cover the case of stationary filtering over an infinite-horizon for uncertain time-invariant systems.