Sensitivity of nonlinear dynamic modeling

Abstract The paper discusses the sensitivity of modeling with respect to the discretization and structural realization of sampled continuous nonlinear dynamic processes. As a tool for the sensitivity analysis equivalent input-output equivalent structures are introduced. The aim of the paper is to explain the relationships behind the modeling error and to offer a systematic approach to discuss input/output equivalent structures and to show how to reduce sensitivity by choosing the proper structure. The results are verified by simulation examples, as well.