The structure of embeded control system (IMAGE)
Caption
the figure illustrates how the system works together to maintain spacecraft attitude control by using a combination of intermittent measurements, virtual prediction, and fault compensation, making it robust even when sensor or actuator faults occur.
Virtual Estimator: Serves as a software-based observer, providing continuous state estimation despite discontinuous sensor inputs.
Robust Control Generation: The controller utilizes the estimated state (rather than direct, faulty measurements) to generate accurate control torques.
Fault Mitigation: This architecture ensures attitude stability and control performance in the presence of sensor-actuator faults, enhancing the system's resilience and reliability.
Credit
Yu Wang,Shunyi Zhao, Jin Wu,Lining Tan,Peng Dong,Chengxi Zhang.
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CC BY-NC-ND