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Xinghua Liu,Hong-sheng Xi 제어·로봇·시스템학회 2014 International Journal of Control, Automation, and Vol.12 No.6
This paper is concerned with the synchronization problem for a class of Markovian jump complex heterogeneous networks with partly unknown transition rates and time-varying delay. Based on the concept of quasi-synchronization, a novel stochastic Lyapunov functional is constructed to solve the problem. Then sufficient quasi-synchronization conditions are presented, and explicit expressions of error levels are proposed to estimate the synchronization error. Finally, numerical examples are provided to demonstrate the feasibility and effectiveness of the proposed theoretic result.
Xinghua Liu,Hong-sheng Xi 제어·로봇·시스템학회 2014 International Journal of Control, Automation, and Vol.12 No.1
The exponential stability for neutral delay Markovian jump systems with nonlinear perturbations and partially unknown transition rates is investigated in this paper. With creative Lyapunov functional and novel matrix inequalities analysis, delay-range-dependent and rate-dependent exponential stability conditions are presented by reciprocally convex lemma and free weighting matrices. Numerical exam-ples are given to demonstrate the effectiveness of the proposed methods.
Terminal sliding mode control of master-slave system with Markovian jump parameters
Xinghua Liu,Guoqi Ma,Hongsheng Xi,Weidong Wang 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10
The finite-time synchronization of master-slave system with Markovian jump parameters is investigated in this paper. An equivalent control based terminal sliding mode control is proposed to guarantee the finite-time convergence of error dynamics. By using stochastic theory and Lyapunov method, some conditions are proposed to facilitate the sliding surface design. Furthermore, a desired controller is synthesized to ensure that the trajectory of the closed-loop error system can be driven onto the prescribed sliding mode surface. Finally numerical simulations are presented to illustrate the effectiveness of terminal sliding mode control scheme.
Research on Transferring the National Height System to the Island
Yanxiong LIU,Xinghua ZHOU,Lin PENG,Yongtong WU 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.1 No.-
It is quite difficult to transfer the National Height System 1985 to the island in China. In the study, one feasible and alternative way, which measures synchronally the tide variation at the island and the coast , is firstly introduced. Then, a new method is proposed. This new method combines GPS technique and Quasi-Geoid Determination technique (GQGD). It needs gravity data, GPS data, leveling data and DEM data, together with complex calculation method and the Earth gravity model. After describing the mathematical model and presenting the calculational steps, one experiment has been shown that this method is valid and can achieve accuracy up to 5 cm for the normal height, compared with the results both from the tidal observation and height approximation. Some suggestion is also given in the end.
Intelligent On-demand Routing Protocol for Ad Hoc Network
Yongfei Ye,Xinghua Sun,Minghe Liu,Jing Mi,Ting Yan,Lihua Ding 한국정보처리학회 2020 Journal of information processing systems Vol.16 No.5
Ad hoc networks play an important role in mobile communications, and the performance of nodes has asignificant impact on the choice of communication links. To ensure efficient and secure data forwarding anddelivery, an intelligent routing protocol (IAODV) based on learning method is constructed. Five attributes ofnode energy, rate, credit value, computing power and transmission distance are taken as the basis ofsegmentation. By learning the selected samples and calculating the information gain of each attribute, thedecision tree of routing node is constructed, and the rules of routing node selection are determined. IAODValgorithm realizes the adaptive evaluation and classification of network nodes, so as to determine the optimaltransmission path from the source node to the destination node. The simulation results verify the feasibility,effectiveness and security of IAODV.
Centralized Clustering Routing Based on Improved Sine Cosine Algorithm and Energy Balance in WSNs
Xiaoling Guo,Xinghua Sun,Ling Li,Renjie Wu,Meng Liu 한국정보처리학회 2023 Journal of information processing systems Vol.19 No.1
Centralized hierarchical routing protocols are often used to solve the problems of uneven energy consumptionand short network life in wireless sensor networks (WSNs). Clustering and cluster head election have becomethe focuses of WSNs. In this paper, an energy balanced clustering routing algorithm optimized by sine cosinealgorithm (SCA) is proposed. Firstly, optimal cluster head number per round is determined according tosurviving node, and the candidate cluster head set is formed by selecting high-energy node. Secondly, a randompopulation with a certain scale is constructed to represent a group of cluster head selection scheme, and fitnessfunction is designed according to inter-cluster distance. Thirdly, the SCA algorithm is improved by usingmonotone decreasing convex function, and then a certain number of iterations are carried out to select a groupof individuals with the minimum fitness function value. From simulation experiments, the process from thefirst death node to 80% only needs about 30 rounds. This improved algorithm balances the energy consumptionamong nodes and avoids premature death of some nodes. And it greatly improves the energy utilization andextends the effective life of the whole network.
Approximate Bisimulations for Constrained Discrete-Time Linear Systems
Guoqi Ma,Linlin Qin,Xinghua Liu,Chun Shi,Gang Wu 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10
In this paper, we consider the problem of approximate bisimulations for constrained discrete-time linear systems. First, we develop a theory of approximation for transition systems with nondeterministic evolution. Then observation metrics are used to describe the bounded distance between system observations. Furthermore, we utilize a class of Lyapunov-like functions, called bisimulation functions, to characterize the approximate bisimulation relations. For the class of discrete-time linear systems with constrained inputs, we convert the problem of computing bisimulation functions to linear matrix inequalities (LMIs) and optimization problems. Finally, a numerical example is performed to verify the effectiveness of the approximation bisimulation framework design technique, and using multi-parametric toolbox (MPT), we also demonstrate the application to safety verification.
Guoqing Xia,Caiyun Liu,Bo Zhao,Xinghua Chen,Xingchao Shao 제어·로봇·시스템학회 2019 International Journal of Control, Automation, and Vol.17 No.11
This paper investigates finite-time output feedback control for ship dynamic positioning assisted mooring system with external disturbances and without velocity measurement. Firstly, a finite-time observer is designed to estimate the velocity of the positioning ship and the external disturbances. Secondly, based on the proposed observer, a finite-time control law is introduced to bring the ship to the desired position and heading. Furthermore, the stability of the overall closed-loop system is proved by using matrix inequality, homogeneous and Lyapunov stability theory. Finally, the effectiveness of the proposed positioning control is verified by numerical simulations.