14th IFAC Symposium on System Identification, SYSID 2006

SYSID-2006 Paper Abstract


Paper ThB2.1

Gerdin, Markus (Linköping Univ.)

Local Identifiability and Observability of Nonlinear Differential-Algebraic Equations

Scheduled for presentation during the Regular Session "Identifiability and Model Selection" (ThB2), Thursday, March 30, 2006, 15:30−15:50, Banquet Room

14th IFAC Symposium on System Identification, March 29 - 31, 2006, Newcastle, Australia

This information is tentative and subject to change. Compiled on September 24, 2018

Keywords Identifiability, Grey Box Modelling


Identifiability is important to guarantee convergence in system identification applications, and observability is important in applications such as control and diagnosis. In this paper, recent results on analysis of nonlinear differential-algebraic equations are used to derive criteria for local identifiability and local weak observability for such models. The criteria are based on rank tests. Examples show the relationship between the new criteria and standard methods for state-space systems.