Observer‐based spatiotemporal event‐triggered fuzzy resilient control for temperature profile of high‐speed spacecraft

Abstract

AbstractThis article proposes an observer‐based spatiotemporal event‐triggered fuzzy resilient controller design method for the temperature profile across the fin of high‐speed spacecraft. Initially, the considered nonlinear system is reconstructed via the Takagi–Sugeno fuzzy rule. Then, to simultaneously realize the observation and control of the spacecraft surface temperature, an observer‐based point controller is proposed in terms of averaged measurements. In addition, taking the network congestion issue into consideration, a spatiotemporal event‐triggered mechanism and a quantization method are adopted to reduce data transmission and enhance bandwidth utilization. Furthermore, to resist cyberattacks and actuator faults, a fuzzy resilient control strategy is designed to ensure the stability of the closed‐loop system with disturbance attenuation performance. Finally, simulation results for a cooling fin are presented to demonstrate the validity of the proposed method.