Stability and Control of Uncertain Systems Open access

Observer-Based Control of Linear Systems with Mismatched Input and Output Delays

Hieu Trinh, Phan Thành Nam, Tran Ngoc Nguyen

arXiv (Cornell University) | Jun 2, 2026

Abstract

Abstract

This paper investigates the stabilization of linear systems subject to simultaneous, mismatched time delays in both the control input and system output vectors. The proposed control framework is developed in two primary stages. First, an asymptotically stabilizing delayed state-feedback controller is synthesized by leveraging recent advancements in Linear Matrix Inequality (LMI) techniques. Second, this controller is realized using novel time-delay compensators \cite{trinhnam26}. This architecture successfully accommodates an output measurement delay $τ_y$ that is independent of the input delay $τ_u$, enabling direct estimation of the delayed state-feedback control law. The proposed methodology is then extended to target output controllers to account for simultaneous, mismatched time delays in both the control input and system output vectors.

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Researchers on this paper

Hieu Trinh

first

Phan Thành Nam

middle | ORCID 0000-0002-3730-8864

Tran Ngoc Nguyen

last | ORCID 0000-0001-6281-9781

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Citation

BibTeX

@article{Trinh2026Observer,
  title = {Observer-Based Control of Linear Systems with Mismatched Input and Output Delays},
  author = {Hieu Trinh and Phan Thành Nam and Tran Ngoc Nguyen},
  journal = {arXiv (Cornell University)},
  year = {2026},
  doi = {10.48550/arxiv.2606.03081},
  url = {https://doi.org/10.48550/arxiv.2606.03081}
}

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