English

A continuous-time fundamental lemma and its application in data-driven optimal control

Optimization and Control 2024-07-18 v1

Abstract

Data-driven control of discrete-time and continuous-time systems is of tremendous research interest. In this paper, we explore data-driven optimal control of continuous-time linear systems using input-output data. Based on a density result, we rigorously derive error bounds for finite-order polynomial approximations of elements of the system behavior. To this end, we leverage a link between latent variables and flat outputs of controllable systems. Combined with a continuous-time counterpart of the fundamental lemma by Willems et al., we characterize the suboptimality resulting from polynomial approximations in data-driven linear-quadratic optimal control problems. Finally, we draw upon a numerical example to illustrate our results.

Keywords

Cite

@article{arxiv.2407.12179,
  title  = {A continuous-time fundamental lemma and its application in data-driven optimal control},
  author = {Philipp Schmitz and Timm Faulwasser and Paolo Rapisarda and Karl Worthmann},
  journal= {arXiv preprint arXiv:2407.12179},
  year   = {2024}
}
R2 v1 2026-06-28T17:43:49.543Z