Parameter-dependent robust stability for uncertain Markovian jump systems with time delay   总被引：1，自引：0，他引：1  

Hongyi Li  Qi Zhou  Honghai Liu 《Journal of The Franklin Institute》2011,348(4):738-748

In this paper, the problem of parameter-dependent robust stability analysis is addressed for uncertain Markovian jump linear systems (MJLSs) with polytopic parameter uncertainties and time-varying delay. By constructing parameter-dependent Lyapunov functional, some sufficient conditions are developed to enable robust exponential mean square stability for the systems. New parameter-dependent robust stability criteria for MJLSs are established in the form of linear matrix inequalities (LMIs), which can be solved efficiently by the interior-point algorithm. Finally, a numerical example is given to demonstrate the effectiveness of the proposed approach.  相似文献   

潜艇远航中艇员疲劳状况研究     

赵波  于波扬 《军事体育进修学院学报》2011,30(4):73-75

通过对艇员疲劳自觉症状的调查,研究分析了远航中艇员疲劳状况的发生及其影响因素。阐述了艇员疲劳对潜艇航行安全的影响,并提出了改进措施与应对手段。  相似文献   

基于ISI Web of Science的《中国地理科学》(英文版)影响力分析及提升举措     

曹会聪  朱立禄  王琳 《现代情报》2015,35(2):114-118

本文以Web of Knowledge为检索平台,从总被引频次、发表文章数量、单篇文章被引用次数、引用作者分布等方面,基于地理学学科特点和文献计量学方法,统计分析了《中国地理科学》(英文版)近年来影响因子的变化情况和影响因子下降的原因,总结了该刊为提高影响因子和总被引频次所采取的改进措施,为该刊未来的发展提供指导,也为其他同类刊物提供借鉴。  相似文献   

家、国观念冲突下的双重悲剧——对鲁迅小说《药》主题的再探讨     

辛克清 《青岛大学师范学院学报》2011,28(1):68-71

鲁迅先生的小说《药》呈现出一种父母对儿子的浓重亲情,反映出人们意识中根深蒂固的个人小家庭观念。家庭观念和国家观念的激烈冲突,造成的是两败俱伤的双重悲剧。  相似文献   

中小企业选择技术创新项目的方法研究——以评价技术创新效果的视角     

孙林杰  葛玉明  刘琳 《未来与发展》2010,31(6):63-66,49

正确选择合适的技术项目,对于中小企业成长和发展而言至关重要。以评价技术创新效果为切入点,提出应该从技术创新效率和经济效益两方面,评估技术项目的可行性。通过建立效率评价模型、效益评价模型以及相应的评价指标体系,并制定相关评价准则,总结出一套评价技术创新效果的方法。  相似文献   

Static group synchronization of second-order multi-agent systems via pinning control     

Xiang-Gui Guo  Hong-Jian Li  Jun-Jie Zhao  Wei-Wei Che 《Journal of The Franklin Institute》2019,356(9):4842-4858

This paper investigates the expected static group synchronization problem of the second-order multi-agent systems via pinning control. For directed communication topology with spanning tree, based on Gershgorin disk theorem and the matrix property, a static pinning control protocol with fixed gains is first introduced and some sufficient and necessary static group synchronization criteria are also established. It is worth mentioning that a rigorous proof is also given that only one pinning node is needed to guarantee static group synchronization, which could be inferred that our protocol might be more economical and effective in large scale of multi-agent systems. Then, for weakly connected directed communication topology with nodes of zero in-degree, an adaptive pinning control applied to the node with zero in-degree is also proposed to achieve static group synchronization. Finally, the efficiency of the proposed protocols is verified by two simulation examples.  相似文献   

Stabilization for a class of rectangular descriptor systems via time delayed dynamic compensator     

Chong Lin  Jian Chen  Bing Chen  Lei Guo  Qing-Guo Wang  Ziye Zhang 《Journal of The Franklin Institute》2019,356(4):1944-1954

  相似文献   

Further results on stabilization for NCSs with packet losses and transmission delay: UDP case     

《Journal of The Franklin Institute》2019,356(8):4601-4621

The stabilization problem concerning the user datagram protocol (UDP) for networked control systems (NCSs) is investigated in this paper. More specifically, both the state and control signal can be lost during transmission, and the networked induced delay occurs while the control signal delivered to the actuator. On the other hand, no communication channel can be accessed from the actuator to the estimator (no acknowledge signal). The innovations of this paper include: (1) Based on the modified Riccati-ZXL equations, the necessary and sufficient stabilization conditions are developed for the NCSs with packet losses and transmission delay (UDP case); (2) We have verified that the separation principle holds for the finite horizon optimal output feedback control problem; (3) For 1-dimensional case, the maximal delay bound and the maximal packet losses rate are derived.  相似文献   

Stability analysis for linear time-delay systems using new inequality based on the second-order derivative     

《Journal of The Franklin Institute》2019,356(15):8770-8784

This paper studies the stability problem of linear time-varying delay system. Firstly, a double integral inequality based on the second-order derivative is proposed in this paper. Secondly, novel Lyapunov–Krasovskii functional consisting of integral terms based on the second-order derivative is constructed to enhance the feasible region of delay-dependent stability. Based on the two aspects, new delay-dependent stability criteria which guarantee the asymptotic stability of linear systems with time-varying delay are given in the form of linear matrix inequality (LMI). Finally, several numerical examples are given to show the advantages of the proposed methods.  相似文献   

Optimal jamming attack schedule for remote state estimation with two sensors     

Lianghong Peng  Xianghui Cao  Hongbao Shi  Changyin Sun 《Journal of The Franklin Institute》2018,355(14):6859-6876

In cyber-physical systems (CPS), cyber threats emerge in many ways which can cause significant destruction to the system operation. In wireless CPS, adversaries can block the communications of useful information by channel jamming, incurring the so-called denial of service (DoS) attacks. In this paper, we investigate the problem of optimal jamming attack scheduling against remote state estimation wireless network. Specifically, we consider that two wireless sensors report data to a remote estimator through two wireless communication channels lying in two unoverlapping frequency bands, respectively. Meanwhile, an adversary can select one and only one channel at a time to execute jamming attack. We prove that the optimal attack schedule is continuously launching attack on one channel determined based on the system dynamics matrix. The theoretical results are validated by numerical simulations.  相似文献