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496 results on '"Du, Dajun"'

2. Secure Control of Networked Inverted Pendulum Visual Servo System with Adverse Effects of Image Computation (Extended Version)

Author

Du, Dajun, Zhang, Changda, Lu, Qianjiang, Fei, Minrui, and Zhou, Huiyu

Subjects
Electrical Engineering and Systems Science - Image and Video Processing
Abstract

When visual image information is transmitted via communication networks, it easily suffers from image attacks, leading to system performance degradation or even crash. This paper investigates secure control of networked inverted pendulum visual servo system (NIPVSS) with adverse effects of image computation. Firstly, the image security limitation of the traditional NIPVSS is revealed, where its stability will be destroyed by eavesdropping-based image attacks. Then, a new NIPVSS with the fast scaled-selective image encryption (F2SIE) algorithm is proposed, which not only meets the real-time requirement by reducing the computational complexity, but also improve the security by reducing the probability of valuable information being compromised by eavesdropping-based image attacks. Secondly, adverse effects of the F2SIE algorithm and image attacks are analysed, which will produce extra computational delay and errors. Then, a closed-loop uncertain time-delay model of the new NIPVSS is established, and a robust controller is designed to guarantee system asymptotic stability. Finally, experimental results of the new NIPVSS demonstrate the feasibility and effectiveness of the proposed method.

Published
2023

4. A Novel Efficient Signcryption Scheme for Resource-Constrained Smart Terminals in Cyber-Physical Power Systems

Author

Li, Xue, Jiang, Cheng, Du, Dajun, Wang, Shengyi, Fei, Minrui, and Wu, Lei

Subjects
Computer Science - Cryptography and Security
Abstract

Most of the existing signcryption schemes generate pseudonym by key generation center (KGC) and usually choose bilinear pairing to construct authentication schemes. The drawback is that these schemes not only consume heavy computation and communication costs during information exchange, but also can not eliminate security risks due to not updating pseudonym, which do not work well for resource-constrained smart terminals in cyber-physical power systems (CPPSs). The main objective of this paper is to propose a novel efficient signcryption scheme for resource-constrained smart terminals. First, a dynamical pseudonym self-generation mechanism (DPSGM) is explored to achieve privacy preservation and avoid the source being linked. Second, combined with DPSGM, an efficient signcryption scheme based on certificateless cryptography (CLC) and elliptic curve cryptography (ECC) is designed, which reduces importantly computation and communication burden. Furthermore, under random oracle model (ROM), the confidentiality and non-repudiation of the proposed signcryption scheme are transformed into elliptic curve discrete logarithm and computational Diffie-Hellman problems that cannot be solved in polynomial time, which guarantees the security. Finally, the effectiveness and feasibility of the proposed signcryption scheme are confirmed by experimental analyses., Comment: The submitted paper is a draft and the highlight i.e., remark 1 in section I and section IV.B is error. Therefore, the submitted paper must be withdrawed

Published
2022

5. Stealthy Measurement-Aided Pole-Dynamics Attacks with Nominal Models

Author

Du, Dajun, Zhang, Changda, Peng, Chen, Fei, Minrui, and Zhou, Huiyu

Subjects
Electrical Engineering and Systems Science - Systems and Control
Abstract

When traditional pole-dynamics attacks (TPDAs) are implemented with nominal models, model mismatch between exact and nominal models often affects their stealthiness, or even makes the stealthiness lost. To solve this problem, our current paper presents a novel stealthy measurement-aided pole-dynamics attacks (MAPDAs) method with model mismatch. Firstly, the limitations of TPDAs using exact models are revealed, where exact models help ensure the stealthiness of TPDAs but model mismatch severely influences its stealthiness. Secondly, to handle model mismatch, the proposed MAPDAs method is designed by using a model reference adaptive control strategy, which can keep the stealthiness. Moreover, it is easier to implement as only the measurements are needed in comparison with the existing methods requiring both the measurements and control inputs. Thirdly, the performance of the proposed MAPDAs method is explored using convergence of multivariate measurements, and MAPDAs with model mismatch have the same stealthiness and similar destructiveness as TPDAs. Specifically, MAPDAs with adaptive gains will remain stealthy at an acceptable detection threshold till destructiveness occurs. Finally, experimental results from a networked inverted pendulum system confirm the feasibility and effectiveness of the proposed method.

Published
2022

6. Attack Detection for Networked Control Systems Using Event-Triggered Dynamic Watermarking

Author

Du, Dajun, Zhang, Changda, Li, Xue, Fei, Minrui, and Zhou, Huiyu

Subjects
Computer Science - Cryptography and Security, Electrical Engineering and Systems Science - Systems and Control
Abstract

Dynamic watermarking schemes can enhance the cyber attack detection capability of networked control systems (NCSs). This paper presents a linear event-triggered solution to conventional dynamic watermarking (CDW) schemes. Firstly, the limitations of CDW schemes for event-triggered state estimation based NCSs are investigated. Secondly, a new event-triggered dynamic watermarking (ETDW) scheme is designed by treating watermarking as symmetric key encryption, based on the limit convergence theorem in probability. Its security property against the generalized replay attacks (GRAs) is also discussed in the form of bounded asymptotic attack power. Thirdly, finite sample ETDW tests are designed with matrix concentration inequalities. Finally, experimental results of a networked inverted pendulum system demonstrate the validity of our proposed scheme.

Published
2022

7. Secure Control of Networked Control Systems Using Dynamic Watermarking

Author

Du, Dajun, Zhang, Changda, Li, Xue, Fei, Minrui, Yang, Taicheng, and Zhou, Huiyu

Subjects
Electrical Engineering and Systems Science - Systems and Control
Abstract

We here investigate secure control of networked control systems developing a new dynamic watermarking (DW) scheme. Firstly, the weaknesses of the conventional DW scheme are revealed, and the tradeoff between the effectiveness of false data injection attack (FDIA) detection and system performance loss is analysed. Secondly, we propose a new DW scheme, and its attack detection capability is interrogated using the additive distortion power of a closed-loop system. Furthermore, the FDIA detection effectiveness of the closed-loop system is analysed using auto/cross covariance of the signals, where the positive correlation between the FDIA detection effectiveness and the watermarking intensity is measured. Thirdly, the tolerance capacity of FDIA against the closed-loop system is investigated, and theoretical analysis shows that the system performance can be recovered from FDIA using our new DW scheme. Finally, experimental results from a networked inverted pendulum system demonstrate the validity of our proposed scheme.

Published
2021

11. Guaranteed Cost Control of Networked Inverted Pendulum Visual Servo System with Computational Errors and Multiple Time−Varying Delays

Author

Lu, Qianjiang, Du, Dajun, Zhang, Changda, Fei, Minrei, Rakić, Aleksandar, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Han, Qinglong, editor, McLoone, Sean, editor, Peng, Chen, editor, and Zhang, Baolin, editor

Published
2021
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13. An SEIR Model for Assessment of COVID-19 Pandemic Situation

Author

Sun, Peiliang, Li, Kang, Yang, Zhile, Du, Dajun, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Fei, Minrui, editor, Li, Kang, editor, Yang, Zhile, editor, Niu, Qun, editor, and Li, Xin, editor

Published
2020
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14. A Regression Model for Short-Term COVID-19 Pandemic Assessment

Author

Liu, Xuan, Li, Kang, Yang, Zhile, Du, Dajun, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Fei, Minrui, editor, Li, Kang, editor, Yang, Zhile, editor, Niu, Qun, editor, and Li, Xin, editor

Published
2020
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15. A Fast Hybrid Image Encryption Method for Networked Inverted Pendulum Visual Servo Control Systems

Author

Yang, Lisi, Du, Dajun, Zhang, Changda, Zhang, Jingfan, Fei, Minrui, Rakić, Aleksandar, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Fei, Minrui, editor, Li, Kang, editor, Yang, Zhile, editor, Niu, Qun, editor, and Li, Xin, editor

Published
2020
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20. Stealthy Measurement-Aided Pole-Dynamics Attacks With Nominal Models

Author

Du, Dajun, Zhang, Changda, Peng, Chen, Fei, Minrui, and Zhou, Huiyu

Abstract

When traditional pole-dynamics attacks (TPDAs) are implemented with nominal models, model mismatch between exact and nominal models often affects their stealthiness, or even makes the stealthiness lost. To solve this problem, this article presents a novel stealthy measurement-aided pole-dynamics attacks (MAPDAs) method with model mismatch. First, the limitations of TPDAs using exact models are revealed. Second, to handle the limitations, the proposed MAPDAs method is designed by using an adaptive control strategy, which can keep the stealthiness. Moreover, it is easier to implement as only the measurements are needed in comparison with the existing methods requiring both measurements and control inputs. Third, the performance of the proposed MAPDAs method is explored using convergence of multivariate measurements, and MAPDAs with model mismatch have the same stealthiness and similar destructiveness as TPDAs. Finally, experimental results from a networked inverted pendulum system confirm the feasibility and effectiveness of the proposed method.

Published
2024
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21. Dynamic Hand Gesture Recognition Based on the Three-Dimensional Spatial Trajectory Feature and Hidden Markov Model

Author

Liu, Kangli, Zhou, Feixiang, Wang, Haikuan, Fei, Minrui, Du, Dajun, Barbosa, Simone Diniz Junqueira, Series Editor, Filipe, Joaquim, Series Editor, Kotenko, Igor, Series Editor, Sivalingam, Krishna M., Series Editor, Washio, Takashi, Series Editor, Yuan, Junsong, Series Editor, Zhou, Lizhu, Series Editor, Li, Kang, editor, Fei, Minrui, editor, Du, Dajun, editor, Yang, Zhile, editor, and Yang, Dongsheng, editor

Published
2018
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22. Distributed maximum correntropy unscented Kalman filter under hybrid attacks in non‐Gaussian environment.

Author

Liu, Ting, Ma, Haiping, Huang, Jiyuan, Yu, Mei, and Du, Dajun

Subjects
DENIAL of service attacks, COVARIANCE matrices, COMPUTATIONAL complexity, DECEPTION, NOISE
Abstract

This paper addresses a distributed nonlinear filtering issue based on maximum correntropy for dealing with randomly occurring hybrid cyber‐attacks in non‐Gaussian environment. The types of cyber‐attacks include denial of service attacks and deception attacks. First, a modified distributed unscented Kalman filter is proposed, using Cauchy kernel‐based maximum correntropy criterion instead of the traditional mean square error criterion, against cyber‐attacks and non‐Gaussian noise. Then based on fixed‐point iterative rules and information fusion strategy, the update equations of state estimates and covariance matrices of the proposed filter are obtained. Furthermore, the sufficient condition guaranteeing its convergence and computational complexity are also given. Finally, an illustrative example is presented to verify the effectiveness of the proposed filter under hybrid cyber‐attacks in non‐Gaussian environment. [ABSTRACT FROM AUTHOR]

Published
2024
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23. A Novel QGA-UKF Algorithm for Dynamic State Estimation of Power System

Author

Zhou, Lihua, Fei, Minrui, Du, Dajun, Li, Wenting, Hu, Huosheng, Rakić, Aleksandar, Hutchison, David, Editorial Board Member, Kanade, Takeo, Editorial Board Member, Kittler, Josef, Editorial Board Member, Kleinberg, Jon M., Editorial Board Member, Mattern, Friedemann, Editorial Board Member, Mitchell, John C., Editorial Board Member, Naor, Moni, Editorial Board Member, Pandu Rangan, C., Editorial Board Member, Steffen, Bernhard, Editorial Board Member, Terzopoulos, Demetri, Editorial Board Member, Tygar, Doug, Editorial Board Member, Goos, Gerhard, Founding Editor, Hartmanis, Juris, Founding Editor, Lu, Huchuan, editor, Tang, Huajin, editor, and Wang, Zhanshan, editor

Published
2019
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33. Networked Control System Based on LQ Tracking and Response Strategy Under Data Injection Attack

Author

Jie, Xinchun, Fei, Minrui, Du, Dajun, Yang, T. C., Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Yue, Dong, editor, Peng, Chen, editor, Du, Dajun, editor, Zhang, Tengfei, editor, Zheng, Min, editor, and Han, Qinglong, editor

Published
2017
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34. Communication Network Planning with Dual Network Coupling Characteristics Under Active Distribution Network

Author

Fu, Zhiqiang, Li, Xue, Du, Dajun, Xu, Sheng, Barbosa, Simone Diniz Junqueira, Series Editor, Filipe, Joaquim, Series Editor, Kotenko, Igor, Series Editor, Sivalingam, Krishna M., Series Editor, Washio, Takashi, Series Editor, Yuan, Junsong, Series Editor, Zhou, Lizhu, Series Editor, Li, Kang, editor, Zhang, Jianhua, editor, Chen, Minyou, editor, Yang, Zhile, editor, and Niu, Qun, editor

Published
2018
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35. Risk Assessment of Voltage Limit Violation Based on Probabilistic Load Flow in Active Distribution Network

Author

Dong, Jing, Li, Xue, Du, Dajun, Barbosa, Simone Diniz Junqueira, Series Editor, Filipe, Joaquim, Series Editor, Kotenko, Igor, Series Editor, Sivalingam, Krishna M., Series Editor, Washio, Takashi, Series Editor, Yuan, Junsong, Series Editor, Zhou, Lizhu, Series Editor, Li, Kang, editor, Zhang, Jianhua, editor, Chen, Minyou, editor, Yang, Zhile, editor, and Niu, Qun, editor

Published
2018
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36. Siting and Sizing of Distributed Generation and Electric Vehicle Charging Station Under Active Management Mode

Author

Shan, Weilu, Li, Xue, Du, Dajun, Barbosa, Simone Diniz Junqueira, Series Editor, Filipe, Joaquim, Series Editor, Kotenko, Igor, Series Editor, Sivalingam, Krishna M., Series Editor, Washio, Takashi, Series Editor, Yuan, Junsong, Series Editor, Zhou, Lizhu, Series Editor, Li, Kang, editor, Zhang, Jianhua, editor, Chen, Minyou, editor, Yang, Zhile, editor, and Niu, Qun, editor

Published
2018
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37. A Novel Wind Power Accommodation Strategy Considering User Satisfaction and Demand Response Dispatch Economic Costs

Author

Hong, Jie, Li, Xue, Du, Dajun, Barbosa, Simone Diniz Junqueira, Series Editor, Filipe, Joaquim, Series Editor, Kotenko, Igor, Series Editor, Sivalingam, Krishna M., Series Editor, Washio, Takashi, Series Editor, Yuan, Junsong, Series Editor, Zhou, Lizhu, Series Editor, Li, Kang, editor, Zhang, Jianhua, editor, Chen, Minyou, editor, Yang, Zhile, editor, and Niu, Qun, editor

Published
2018
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40. A Novel Data Injection Cyber-Attack Against Dynamic State Estimation in Smart Grid

Author

Chen, Rui, Du, Dajun, Fei, Minrui, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Li, Kang, editor, Xue, Yusheng, editor, Cui, Shumei, editor, Niu, Qun, editor, Yang, Zhile, editor, and Luk, Patrick, editor

Published
2017
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41. Detecting Replay Attacks in Power Systems: A Data-Driven Approach

Author

Ma, Mingliang, Zhou, Peng, Du, Dajun, Peng, Chen, Fei, Minrui, AlBuflasa, Hanan Mubarak, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Li, Kang, editor, Xue, Yusheng, editor, Cui, Shumei, editor, Niu, Qun, editor, Yang, Zhile, editor, and Luk, Patrick, editor

Published
2017
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42. A Novel Dynamic State Estimation Algorithm in Power Systems Under Denial of Service Attacks

Author

Yang, Mengzhuo, Li, Xue, Du, Dajun, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Li, Kang, editor, Xue, Yusheng, editor, Cui, Shumei, editor, Niu, Qun, editor, Yang, Zhile, editor, and Luk, Patrick, editor

Published
2017
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43. Cyber Security Against Denial of Service of Attacks on Load Frequency Control of Multi-area Power Systems

Author

Shen, Yubin, Fei, Minrui, Du, Dajun, Zhang, Wenjun, Stanković, Srdjan, Rakić, Aleksandar, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Li, Kang, editor, Xue, Yusheng, editor, Cui, Shumei, editor, Niu, Qun, editor, Yang, Zhile, editor, and Luk, Patrick, editor

Published
2017
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44. State-of-Charge Estimation of Lithium Batteries Using Compact RBF Networks and AUKF

Author

Zhang, Li, Li, Kang, Du, Dajun, Fei, Minrui, Li, Xiang, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Li, Kang, editor, Xue, Yusheng, editor, Cui, Shumei, editor, Niu, Qun, editor, Yang, Zhile, editor, and Luk, Patrick, editor

Published
2017
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50. Experimental Analysis of Visual Inverted Pendulum Servoing System

Author

Du, Dajun, Zhan, Bin, Li, Wangpei, Fei, Minrui, Yang, TaiCheng, Diniz Junqueira Barbosa, Simone, Series editor, Chen, Phoebe, Series editor, Du, Xiaoyong, Series editor, Filipe, Joaquim, Series editor, Kara, Orhun, Series editor, Kotenko, Igor, Series editor, Liu, Ting, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Zhang, Lin, editor, Song, Xiao, editor, and Wu, Yunjie, editor

Published
2016
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