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Output feedback stabilization of networked switched nonlinear systems with continuous-time observers and inter-sample

Jiani Cheng¹, Jingxin Huang¹, Xiangze Lin¹

¹College of Artificial Intelligence, Nanjing Agricultural University, Nanjing 210031, PR China.

ISA Transactions

|August 31, 2025

Summary

This study stabilizes networked nonlinear systems using event-triggered sampling and observers. It achieves system stability using static and dynamic sampling mechanisms for improved control.

Keywords:

Continuous-time observers Event-triggered sampling mechanism Inter-sample output predictors Networked switched nonlinear systems Output feedback

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Area of Science:

Control Systems Engineering
Nonlinear Dynamics
Networked Systems

Background:

Networked systems introduce challenges in state estimation and control due to sampling and delays.
Event-triggered sampling offers efficiency by reducing data transmission compared to periodic sampling.

Purpose of the Study:

To develop a control strategy for output stabilization of nonlinear planar systems under event-triggered sampling.
To design switched continuous-time observers with inter-sample output predictors for state estimation.

Main Methods:

Employs a hybrid framework combining continuous-time observers with discrete-time sampling events.
Utilizes static and dynamic event-triggered sampling mechanisms.
Designs switched inter-sample output predictors to estimate unmeasurable states.

Main Results:

Achieves global ultimate boundedness for switched systems under static event-triggered sampling.
Guarantees global asymptotic stability for switched systems under dynamic event-triggered sampling.
Demonstrates the effectiveness of the proposed emulation method through simulations.

Conclusions:

The proposed method effectively stabilizes networked nonlinear switched systems.
Switched continuous-time observers combined with inter-sample output predictors offer a robust approach.
The integration of continuous-time observer design with discrete sampling advantages is highlighted.