Design and analysis of H∞$$ {H}_{\infty } $$ control strategies with dynamic event‐triggered schemes and quantizer in the presence of hybrid attacks

Abstract This study explores the resilience of networked control systems (NCSs) against hybrid attacks, focusing on enhancing their performance. To mitigate excessive data transmission, the article introduces dynamic event‐triggered schemes and quantizer within the sensor‐to‐observer communication channel. The network environment is susceptible to various attacks, including denial‐of‐service (DoS) attacks and deception attacks. An augmented system model is formulated, and through the application of Lyapunov stability theory, conditions for ensuring the asymptotic stability of the system are established. The collaborative design of quantizer parameters, controller gain, and event‐triggered thresholds is achieved by solving linear matrix inequalities. Simulation‐based theoretical models have effectively demonstrated the reduction of the impact of network intrusions on NCSs, validating the proposed approach.