Statistics

Mathematical analysis

Discrete time and continuous time

Lyapunov function

The Internet

Engineering

Artificial intelligence

Cyber-physical system

Physics

Nonlinear system

Clinical psychology

Mathematics

Biology

Denial-of-service attack

Quantum mechanics

Operating system

Control system

Computer science

Agronomy

World Wide Web

Dwell time

Piecewise

Controller (irrigation)

Control (management)

Observer (physics)

Electrical engineering

Exponential stability

Control theory (sociology)

Medicine

IEEE Transactions on Automatic Control

This article studies the observer-based output feedback control problem for a class of cyber-physical systems with periodic denial-of-service (DoS) attacks, where the attacks coexist both in the measurement and control channels in the network scenario. The periodic DoS attacks are characterized by a cyclic dwell-time switching strategy, such that the resulting augmented system can be converted into a class of discrete-time cyclic dwell-time switched systems including a stable subsystem and an unstable subsystem. By means of a cyclic piecewise linear Lyapunov function approach, the exponential stability and $l_2$-gain analysis, and observer-based controller design are carried out for the augmented discrete-time cyclic switched system. Then, the desired observer and controller gains in piecewise linear form are determined simultaneously so as to ensure that the resulting closed-loop system is exponentially stable with a prescribed $\mathcal {H}_{\infty }$ performance index. Finally, a practical application of unmanned ground vehicles under periodic DoS attacks is provided to verify the effectiveness of the developed control approach.

Observer-Based Control for Cyber-Physical Systems With Periodic DoS Attacks via a Cyclic Switching Strategy