Title :
Newton observer design in the absence of an exact discrete-time model
Author :
Biyik, Emrah ; Arcak, Murat
Author_Institution :
Dept. of Electr., Comput., & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY, USA
Abstract :
We study the Newton observer design, developed by P. E. Moraal and J. W. Grizzle (1995), when the exact discrete-time model is not known analytically. We eliminate the dependence on this exact model by introducing continuous-time filters that produce the numerical value of the exact model. We then implement the Newton method with finite-difference and secant approximations for the Jacobian. The proposed method offers flexibility to be implemented with nonuniform, or event-driven sampling.
Keywords :
Jacobian matrices; Newton method; continuous time filters; control system analysis; control system synthesis; discrete time systems; finite difference methods; observers; sampling methods; Jacobian; Newton method; Newton observer design; continuous-time filter; event-driven sampling; exact discrete-time model; finite-difference approximation; nonuniform sampling; secant approximation; Design engineering; Filters; Finite difference methods; Jacobian matrices; Newton method; Numerical models; Observability; Output feedback; Sampling methods; Systems engineering and theory;
Conference_Titel :
American Control Conference, 2005. Proceedings of the 2005
Print_ISBN :
0-7803-9098-9
Electronic_ISBN :
0743-1619
DOI :
10.1109/ACC.2005.1470635
