Robust H∞ resilient control of network-based control system with modulation

Network-based control system has been an emerging technology in the control and communication fields in recent years. Modulation is a key step to achieve bandpass transmission, especially for the wireless networks. Modulation, an important component in network-based control system, has the detrimental effect on the system performance in some context. In the paper, first, it is shown that the modulation can result in time delay existing not only between sensor and controller, but also between controller and actuator. Then, system stability is analysed, and a robust H
_∞
resilient controller restraining controller gain perturbance is designed based on the LMI scheme. Finally, a numerical simulation is used to demonstrate the effectiveness of the designed controller.