Stabilization of an unstable reaction-diffusion PDE with input delay despite state and input quantization

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Main Authors: Koudohode, Florent, Bekiaris-Liberis, Nikolaos
Format: Preprint
Published: 2025
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author Koudohode, Florent
Bekiaris-Liberis, Nikolaos
author_facet Koudohode, Florent
Bekiaris-Liberis, Nikolaos
contents We solve the global asymptotic stability problem of an unstable reaction-diffusion Partial Differential Equation (PDE) subject to input delay and state quantization developing a switched predictor-feedback law. To deal with the input delay, we reformulate the problem as an actuated transport PDE coupled with the original reaction-diffusion PDE. Then, we design a quantized predictor-based feedback mechanism that employs a dynamic switching strategy to adjust the quantization range and error over time. The stability of the closed-loop system is proven properly combining backstepping with a small-gain approach and input-to-state stability techniques, for deriving estimates on solutions, despite the quantization effect and the system's instability. We also extend this result to the input quantization case.
format Preprint
id arxiv_https___arxiv_org_abs_2501_15924
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Stabilization of an unstable reaction-diffusion PDE with input delay despite state and input quantization
Koudohode, Florent
Bekiaris-Liberis, Nikolaos
Systems and Control
Analysis of PDEs
We solve the global asymptotic stability problem of an unstable reaction-diffusion Partial Differential Equation (PDE) subject to input delay and state quantization developing a switched predictor-feedback law. To deal with the input delay, we reformulate the problem as an actuated transport PDE coupled with the original reaction-diffusion PDE. Then, we design a quantized predictor-based feedback mechanism that employs a dynamic switching strategy to adjust the quantization range and error over time. The stability of the closed-loop system is proven properly combining backstepping with a small-gain approach and input-to-state stability techniques, for deriving estimates on solutions, despite the quantization effect and the system's instability. We also extend this result to the input quantization case.
title Stabilization of an unstable reaction-diffusion PDE with input delay despite state and input quantization
topic Systems and Control
Analysis of PDEs
url https://arxiv.org/abs/2501.15924