9 results on '"Xing, Shuangyun"'
Search Results
2. Global exponential stability for delayed Clifford-valued coupled neural networks with impulsive effects.
- Author
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Xing, Shuangyun, Luan, Hao, and Deng, Feiqi
- Subjects
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EXPONENTIAL stability , *ARTIFICIAL neural networks , *LINEAR matrix inequalities - Abstract
In the paper, the global exponential stability for impulsive delayed Clifford-valued coupled neural networks is studied. Firstly, a delayed Clifford-valued coupled neural network model is established. So as to avoid the non-commutativity issue of Clifford numbers multiplication, the original n -dimensional Clifford-valued models are decomposed into 2 m n -dimensional real-valued models. Then, by using Lyapunov-Krasovskii (L-K) functional approach and the technique about linear matrix inequality, some new sufficient conditions are presented for the global exponential stability of the considered neural network models. Finally, the effectiveness of the results are verified by two numerical simulations. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
3. An improved iterative algorithm for solving optimal tracking control problems of stochastic systems.
- Author
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Xing, Shuangyun, Liu, Yifan, and Liu, Da-Yan
- Subjects
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STOCHASTIC systems , *ARTIFICIAL satellite tracking , *RICCATI equation , *ALGORITHMS , *ALGEBRAIC equations , *NEWTON-Raphson method - Abstract
This paper proposes an improved iterative algorithm based on a Newton iterative algorithm, which is used to research the stochastic linear quadratic optimal tracking (SLQT) control for stochastic continuous-time systems. Firstly, a Newton iterative algorithm for solving stochastic algebraic Riccati equations (SAREs) is derived based on the Frechet derivative. Secondly, an improved iterative algorithm in an incremental form for indirectly solving SAREs is presented by combining the numerical iterative method with the incremental Newton iterative (INI) algorithm and introducing a tuning parameter. Under a suitable initial condition, the convergence of the improved iterative algorithm is talked over. Finally, numerical simulation experiments are carried out to compare our proposed improved iterative algorithm with some known works. The results show that the improved iterative algorithm has a faster convergence rate. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. Event-triggered control for uncertain stochastic systems under triple network attacks.
- Author
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Xing, Shuangyun, Sun, Wenbo, and Deng, Feiqi
- Subjects
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INTEGRAL inequalities , *STOCHASTIC systems , *STABILITY criterion , *UNCERTAIN systems , *DECEPTION - Abstract
This paper studies the control problem of uncertain stochastic systems, which takes into account the impact of network attacks. The types of network attacks considered are denial-of-service (DoS) attacks, deception attacks and replay attacks. In order to save network resources and improve communication utilization, the static event-triggered mechanism and adaptive event-triggered mechanism are cited respectively. Firstly, a new Lyapunov-Krasovskii functional is constructed, employing improved Wirtinger-based integral inequality and Jensens inequality, the criteria on stochastic stability in the mean square for uncertain stochastic systems are proposed. Secondly, the design methods of static event-triggered controller and adaptive event-triggered controller are given respectively. Finally, a practical example is given to manifest the effectiveness of the theoretical results. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
5. Delay-dependent H∞ filtering for singular Markov jump systems with Wiener process and generally uncertain transition rates.
- Author
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Xing, Shuangyun, Deng, Feiqi, and Hou, Ting
- Subjects
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WIENER processes , *MARKOVIAN jump linear systems , *TIME delay systems , *LINEAR matrix inequalities , *LYAPUNOV functions - Abstract
This paper is devoted to the investigation of the delay-dependent
filtering problem for a class of continuous-time singular Markov jump systems with Wiener process and generally uncertain transition rates (GUTRs). In the GUTR stochastic singular model under consideration, based on an auxiliary vector function, by employing an integral inequality and some appropriate free-weighting matrices, the delay-dependent sufficient conditions are derived, which ensure that the filtering error system is stochastically admissible. And then, a singular filter is designed such that the filtering error system is not only regular, impulse-free and stochastically stable, but also satisfies a prescribed performance for all time-varying delays no larger than a given upper bound. Furthermore, the solvability conditions of the filtering problem are deduced in terms of a new type of candidate Lyapunov-Krasovskii function and a set of matrix inequalities. Finally, simulation examples are performed to validate the proposed method in this paper. [ABSTRACT FROM AUTHOR] - Published
- 2018
- Full Text
- View/download PDF
6. Delay-dependent H∞ filtering for discrete singular Markov jump systems with Wiener process and partly unknown transition probabilities.
- Author
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Xing, Shuangyun and Deng, Feiqi
- Subjects
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H8 controls , *DELAY filters , *MARKOVIAN jump linear systems , *WIENER processes , *DISCRETE-time systems , *JENSEN'S inequality - Abstract
This paper is devoted to the investigation of the delay-dependent H ∞ filtering problem for a class of discrete-time singular Markov jump systems with Wiener process and partly unknown transition probabilities. The class of stochastic singular model under consideration is more general and covers the stochastic singular Markov jump time-varying delay systems with completely known and completely unknown transition probabilities as two special cases. Firstly, based on a stochastic Lyapunov–Krasovskii candidate function and an auxiliary vector function, by employing some appropriate free-weighting matrices, the discretized Jensen inequality and combining them with the structural characteristics of the filtering error system, a set of delay-dependent sufficient conditions are established, which ensure that the filtering error system is stochastically admissible. And then, a singular filter is designed such that the filtering error system is not only regular, causal and stochastically stable, but also satisfy a prescribed H ∞ performance for all time-varying delays no larger than a given upper bound. Furthermore, the sufficient conditions for the solvability of the H ∞ filtering problem are obtained in terms of a new type of Lyapunov–Krasovskii candidate function and a set of linear matrix inequalities. Finally, simulation examples are presented to illustrate the effectiveness of the proposed method in the paper. [ABSTRACT FROM AUTHOR]
- Published
- 2018
- Full Text
- View/download PDF
7. Mean-square admissibility for stochastic T–S fuzzy singular systems based on extended quadratic Lyapunov function approach.
- Author
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Xing, Shuangyun, Zhang, Qingling, and Zhu, Baoyan
- Subjects
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MEAN square algorithms , *STOCHASTIC analysis , *FUZZY systems , *LYAPUNOV functions , *MATHEMATICAL singularities - Abstract
The mean-square admissibility problem of stochastic T–S fuzzy singular systems via an extended quadratic Lyapunov function is investigated in this paper. Comparing with the existing quadratic Lyapunov function method, the extended quadratic Lyapunov function method can relax stabilization conditions. Firstly, the sufficient condition is given for the mean-square admissibility of stochastic T–S fuzzy singular systems based on an extended quadratic Lyapunov function approach. Secondly, two sufficient conditions for mean-square admissibility of closed-loop systems via the parallel distributed compensation (PDC) fuzzy controller and non-parallel distributed compensation (non-PDC) fuzzy controller are proposed. Furthermore, through the extended quadratic Lyapunov function method and non-PDC fuzzy controller, the less conservative mean-square admissibility conditions on solving fuzzy controllers are derived in terms of linear matrix inequalities (LMIs). Finally, some simulation examples are given to show the effectiveness and merits of the proposed fuzzy controller design methodology. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
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8. Stability and exact observability of discrete stochastic singular systems based on generalised Lyapunov equations.
- Author
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Xing, Shuangyun and Zhang, Qingling
- Abstract
The stability and exact observability problems of discrete stochastic singular systems based on generalised Lyapunov equations are investigated in this study. First, some new conditions for the existence and uniqueness of the solutions to discrete stochastic singular systems are given, and then, a new type generalised Lyapunov equation is proposed. Based on these results, a sufficient condition for stochastic stability of the systems is derived via the solution of the proposed generalised Lyapunov equation. Moreover, the relationship between the solution of the generalised Lyapunov equation and structure properties of discrete stochastic singular systems is discussed as well. Especially, the relationship between the solution of the generalised Lyapunov equation and the stochastic stability of discrete stochastic singular systems with non‐causal behaviour is studied for the first time. Second, another new type generalised Lyapunov equation for exactly observable discrete stochastic singular systems is proposed. Meanwhile, the relationships among the stochastic stability of the systems, exact observability and the solution of the proposed generalised Lyapunov equation are investigated. Finally, simulation examples are worked out to validate the effectiveness of the obtained theoretical results. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
9. A multi-strategy fusion artificial bee colony algorithm with small population.
- Author
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Song, Xiaoyu, Zhao, Ming, and Xing, Shuangyun
- Subjects
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BEES algorithm , *BEE colonies , *POLLINATION by bees , *SET functions , *BEES , *EMPLOYEE reviews - Abstract
• Multiple search equations with different search abilities are adopted or designed. • Multiple strategies with complementary advantages are fused. • Evolution ratio is proposed as an indicator to reflect the adaptability of search equation. • An adaptive mechanism is proposed to adjust the selection of search equation. Although artificial bee colony (ABC) algorithm is more and more popular in solving complex problems, slow convergence rate limits its wide application. ABC with small population can use the limited function evaluation times more efficiently since it can avoid unnecessary searches. However, ABC with small population cannot ensure population diversity, and when the algorithm is weak or unstable, it may fall into local optimum easily. So based on the latest research, we are motivated to propose a stabler and more efficient algorithm design to improve the search ability of ABC with small population by the fusion of multiple search strategies, which used together for the employed bees and the onlooker bees. Firstly we select and design multiple strategies with different search abilities of exploration and exploitation. Secondly, we propose an evolution ratio, which is an indicator to fully reflect the adaptability of the search strategy. Thirdly, we design different fusion methods according to the characteristics of the strategies, in which the search strategy with high exploration is maintained at a certain frequency throughout the whole search process of the employed bees, and the selections of the other two search strategies are adjusted according to evolution ratio adaptively in the employed bee phase and the onlooker bee phase. In the end, a novel algorithm called MFABC is proposed, which can realize efficiently multi-strategy cooperative search according to the requirements of different problems and different search stages. Experimental results on a set of benchmark functions have shown the accuracy, stability, efficiency and convergence rate of MFABC. [ABSTRACT FROM AUTHOR]
- Published
- 2020
- Full Text
- View/download PDF
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