Dynamics Model Validation Using Time-Domain Metrics

Model validation of multirate systems from time-domain experimental data

The model validation problem using time-domain experimental data is studied for multirate linear fractional uncertain models in this note. As a technical tool, the Carathéodory–Fejér (CF) interpolation problem with a nest operator constraint is first investigated. This problem is itself of interest mathematically and has potential applications in addressing other problems in control, signal pro...

Dynamics of a discrete-time plant-herbivore model

Frequency Domain Model (In)Validation

ABSTRACT Classical validation methods accept or reject a model as a valid representation of a plant. However this quantization has several problems: i) Models are neither good nor bad but have a certain valid frequency range. ii) This gives no guess on the failure reasons or the way the model could be improved. iii) In iterative identification and control approaches undermodeling is usually pre...

Uncertainty Modeling via Frequency Domain Model Validation

The majority of literature on robust control assumes that a design model is available and that the uncertainty model bounds the actual variations about the nominal model. However, methods for generating accurate design models have not received as much attention in the literature. The influence of the level of accuracy of the uncertainty model on closed loop performance has received even less at...

New Model Validation Metrics for Correlated Multiple Responses

Northwestern Polytechnical University, Xi’an, PR China, Predoctoral visiting fellow, Northwestern University, Evanston, IL, USA, [email protected] Northwestern Polytechnical University, Xi’an, PR China, [email protected] Northwestern University, Evanston, IL, USA, corresponding author: [email protected] Northwestern University, Evanston, IL, USA, [email protected]...