Dynamic event-triggered security control of cyber-physical systems against missing measurements and cyber-attacks

Zha, Lijuan; Liao, Rongfei; Liu, Jinliang; Cao, Jinde; Xie, Xiangpeng

doi:10.1016/j.neucom.2022.05.096

Cited by 15 publications

(2 citation statements)

References 35 publications

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“…Performing the above variable substitutions to (40), and after some arrangement, (40) can be represented as…”

Section: Resultsmentioning

confidence: 99%

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Event-Triggered Finite-Time Filtering for Nonlinear Networked System With Quantization and DOS Attacks

Zhang,

Han

2024

IEEE Access

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This paper concerns with the finite-time filter design problem for discrete-time nonlinear networked system subject to quantization effect and denial-of-service (DoS) attacks via dynamic eventtriggered scheme (DETS). The nonlinear networked system is presented by Takagi-Sugeno (T-S) fuzzy model. The dynamic event-triggered generator and logarithmic quantizer are employed to save the limited network bandwidth. A stochastic Bernoulli distribution variable is used to characterize the effect of the randomly occurring DoS attacks in communication channel. By a generalized performance index, the finitetime H ∞ filtering and l 2 − l ∞ filtering problem are accessed under a unified framework. The filtering error model is well established by taking event-triggered scheme, logarithmic quantization, and DoS attacks into account. The sufficient conditions for the existence of an acceptable filter are derived such that the filtering error system is finite-time stochastic bounded with the prescribed H ∞ or l 2 − l ∞ performance. The filter gains and the event-triggered communication parameter are co-designed by solving these inequality sufficient conditions. Finally, a simulation study is performed to demonstrate the effectiveness of the proposed approach.INDEX TERMS DoS attacks, event-triggered scheme, finite-time filtering, nonlinear networked system I. INTRODUCTION

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“…Performing the above variable substitutions to (40), and after some arrangement, (40) can be represented as…”

Section: Resultsmentioning

confidence: 99%

“…) where ρ ∈ (0, 1) is a constant, λ and ρ satisfy λρ ≥ 1 which can guarantee µ(k) ≥ 0 for all k according to [39] and [40].…”

Section: B Event Generatormentioning

confidence: 99%

Event-Triggered Finite-Time Filtering for Nonlinear Networked System With Quantization and DOS Attacks

Zhang,

Han

2024

IEEE Access

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Kalman‐based multiple sinusoids identification from intermittently missing measurements of the superimposed signal

Naik,

Nanda,

Upadhyay

et al. 2024

Adaptive Control & Signal

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SummaryWe consider the problem of stochastic identification of multiple sinusoids from intermittently missing measurements of superimposed signal. An alternate problem formulation is presented as estimation of amplitude and frequency of the sinusoids from missing measurements. The popularly known estimation methods, such as the extended Kalman filter (EKF) and cubature Kalman filter (CKF) may fail or suffer from poor accuracy if the measurements are missing. In this paper, we redesign the EKF to handle this irregularity in measurements and apply the modified EKF for the formulated estimation problem. In this regard, we introduce a modified measurement model incorporating the possibility of missing measurements. Subsequently, we rederive the relevant parameters of the EKF, such as measurement estimate, measurement error covariance, and state‐measurement cross‐covariance, for the modified measurement model. Furthermore, we rederive the posterior covariance with minimized trace and study the stability of the resulting extension of the EKF. The results reveal the superior performance of the modified EKF compared with the ordinary Gaussian filters and existing filters‐based estimation of the sinusoids in the presence of intermittently missing measurements.

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Asynchronous finite-time extended dissipative filter on linear neutral semi-Markov jump systems under sensor saturation and dual-channel DoS attacks

Cheng,

Liu

2024

Applied Mathematics and Computation

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Dynamic event-triggered security control of cyber-physical systems against missing measurements and cyber-attacks

Cited by 15 publications

References 35 publications

Event-Triggered Finite-Time Filtering for Nonlinear Networked System With Quantization and DOS Attacks

Event-Triggered Finite-Time Filtering for Nonlinear Networked System With Quantization and DOS Attacks

Kalman‐based multiple sinusoids identification from intermittently missing measurements of the superimposed signal

Asynchronous finite-time extended dissipative filter on linear neutral semi-Markov jump systems under sensor saturation and dual-channel DoS attacks

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