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    This study designs a secure distributed filter for networked control systems facing deception attacks. The filter ensures system performance despite communication constraints and random attacks, validated with an inverted pendulum example.

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    Area of Science:

    • Control Systems Engineering
    • Networked Systems Security
    • Signal Processing

    Background:

    • Networked control systems are vulnerable to deception attacks and disturbances.
    • Communication constraints necessitate efficient scheduling protocols like Round-Robin.
    • Ensuring system stability and performance under cyber threats is critical.

    Purpose of the Study:

    • To design a distributed filter for linear discrete-time networked control systems.
    • To address challenges posed by randomly occurring deception attacks and bounded disturbances.
    • To guarantee the H∞ performance and security of the closed-loop system.

    Main Methods:

    • Application of a Round-Robin protocol for communication scheduling.
    • Utilization of discrete-time Wirtinger's inequality for performance analysis.
    • Development of a filter design methodology ensuring system security.

    Main Results:

    • A sufficient condition for H∞ performance under deception attacks was derived.
    • A novel distributed filter guaranteeing system security was successfully designed.
    • The filter's feasibility was demonstrated through a numerical example.

    Conclusions:

    • The proposed filter effectively enhances the security and performance of networked control systems.
    • The methodology provides a robust solution for systems susceptible to deception attacks.
    • The study contributes to the resilience of networked control systems in adversarial environments.