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Hybrid Newton observer design using the inexact Newton method and GMRES

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2 Author(s)
Biyik, E. ; Dept. of Electr., Comput., & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY ; Arcak, M.

We study the Newton observer design, developed by Moraal and Grizzle (1995), when the exact discrete-time model of the sampled-data system is not available analytically. The hybrid reconstruction of the Newton observer in (Arcak, 2006) eliminates the dependence on this exact discrete-time model by numerical integration and finite difference Jacobian approximations. This paper reduces the computational cost of (Arcak, 2006) using an inexact Newton method and the generalized minimum residuals (GM-RES) algorithm. It then studies how a line search scheme can be incorporated in this modified Newton observer to enlarge the region of convergence

Published in:

American Control Conference, 2006

Date of Conference:

14-16 June 2006