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Neurodynamics analysis of brain information transmission

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Applied Mathematics and Mechanics(English Edition) 2009年第11期30卷 1415-1428页

作者：王如彬张志康 chi k. tse Institute for Cognitive Neurodynamics School of Information Science and EngineeringEast China University of Science and Technology Institute for Cognitive Neurodynamics School of Information Science and EngineeringEast China University of Science and Technology Department of Electronic and Information Engineering The Hong Kong Polytechnic UniversityKowloon

This paper proposes a model of neural networks consisting of populations of perceptive neurons, inter-neurons, and motor neurons according to the theory of stochastic phase resetting dynamics. According to this model, the dynamical characteristics of neural networks are studied in three coupling cases, namely, series and parallel coupling, series coupling, and unilateral coupling. The results show that the indentified structure of neural networks enables the basic characteristics of neural information processing to be described in terms of the actions of both the optional motor and the reflected motor. The excitation of local neural networks is caused by the action of the optional motor. In particular, the excitation of the neural population caused by the action of the optional motor in the motor cortex is larger than that caused by the action of the reflected motor. This phenomenon indicates that there are more neurons participating in the neural information processing and the excited synchronization motion under the action of the optional motor.

关键词： serial and parallel model of neural networks phase coding synchronousmotion perception neuron inter-neuron motor neuron population of neural oscillators

Bayesian random Fourier filters for Gaussian noises

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Science china(Information Sciences) 2018年第12期61卷 214-216页

作者： Shiyuan WANG Wanli WANG Shukai DUAN Lidan WANG chi k.tse College of Electronic and Information Engineering Southwest University Chongqing key Laboratory of Nonlinear Circuits and Intelligent Information Processing Department of Electronic and Information Engineering Hong Kong Polytechnic University

Dear editor,Signal processing algorithms are generally used to identify an unknown system, and can be classified as batch algorithms and online learning algorithms(OLAs). Batch algorithms are applied to offline scenar... 详细信息

关键词： Bayesian random Fourier filters for Gaussian noises

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三相电压源型换流器故障耐受能力分析与评估

电力系统自动化 2016年第18期40卷 109-115页

作者：彭宇黄萌查晓明 chi k.tse 武汉大学电气工程学院湖北省武汉市430072 香港理工大学电子与资讯工程系

三相电压源型并网换流器由于含有大量电力电子开关器件及相应控制环节,是一种强非线性系统。在交直流混合系统中受到电网侧故障或直流侧负载变化等扰动影响,大容量换流器将产生复杂的响应行为,给电网带来难以预计的影响。文中考虑电网... 详细信息

三相电压源型并网换流器由于含有大量电力电子开关器件及相应控制环节,是一种强非线性系统。在交直流混合系统中受到电网侧故障或直流侧负载变化等扰动影响,大容量换流器将产生复杂的响应行为,给电网带来难以预计的影响。文中考虑电网中三相电压暂降的典型故障,基于平均模型分析了三相电压源型换流器电流环的非线性特性。在此基础上,根据李雅普诺夫稳定性判据分析了故障前后换流器的稳定性,并以故障深度和故障持续时间为指标对换流器故障耐受能力进行评估。最后,通过并网系统的逐周期仿真验证了理论分析和计算的有效性。

关键词：并网换流器非线性分析李雅普诺夫稳定性故障耐受能力

Adaptive synchronization between two complex networks with nonidentical topological structures

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Adaptive synchronization between two complex networks with n...

第四届全国网络科学学术论坛暨研究生暑期学校

作者： chi k.tse Department of Electronic and Information Engineering Hong Kong Polytechnic University

＜正＞This paper addresses the theoretical analysis of synchronization between two complex networks with nonideatical topological *** designing effective sdaptive controllers,we achieve synchronisation between two complex *** the cases of identical and nonidentical network topological structures are considered and several useful critaris for synchronization are *** examples are precented to demonstrste the applucation of the of the theoretical results.

关键词： synchronization complex network topological structure

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S/SP非接触谐振变换器的时域特性分析

中国电机工程学报 2015年第8期35卷 1983-1992页

作者：侯佳陈乾宏任小永阮新波 Siu-Chung Wong chi k.tse 江苏省新能源发电与电能变换重点实验室(南京航空航天大学自动化学院) 江苏省南京市210016 香港理工大学电子及资讯工程系

S/SP非接触谐振变换器因为对系统参数变化尤其是变压器的耦合系数变化不太敏感,具有良好的应用前景。但该变换器中主要波形谐波含量较大,导致基波分析方法误差较大,直接影响到变换器的参数设计以及控制的有效性。为此论文对变换器的时... 详细信息

S/SP非接触谐振变换器因为对系统参数变化尤其是变压器的耦合系数变化不太敏感,具有良好的应用前景。但该变换器中主要波形谐波含量较大,导致基波分析方法误差较大,直接影响到变换器的参数设计以及控制的有效性。为此论文对变换器的时域特性展开研究。论文考虑谐波影响,推导谐振网络的通用等效电路,揭示谐波产生的原因,建立谐振腔各波形的定量表达式。在时域波形分析的基础上,论文进一步研究变换器的输出增益特性,推导精确的电压增益并指出基波分析方法结果偏大的原因。最后,设计一台1.5 k W的S/SP非接触谐振变换器,特征波形、电压增益的实验与分析结果吻合良好,验证了论文所采用的时域特性分析方法的正确性。

关键词：非接触电能传输时域特性分析输出电压增益串/串并(S/SP)补偿谐振变换器

Efficient Routing Strategy with Memory Information for Complex Networks

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American Journal of Operations Research 2012年第1期2卷 73-81页

作者： Takayuki kimura Tohru Ikeguchi chi k. tse Department of Electrical and Electronic Engineering Nippon Institute of Technology Saitama Japan Department of Electronic and Information Engineering Hong Kong Polytechnic University Hong Kong China Graduate School of Science and Engineering and Saitama University Brain Science Institute Saitama University Saitama Japan

In this paper, we propose a new packet routing strategy that incorporates memory information for reducing congestion in communication networks. First, we study the conventional routing strategy which selects the paths for transmitting packets to destinations using the distance information and the dynamical information such as the number of accumulating packets at adjacent nodes. Then, we evaluate the effectiveness of this routing strategy for the scale-free networks. From results of numerical simulations, we conclude that this routing strategy is not effective when the density of the packets increases due to the impermeability of the communication network. To avoid this undesirable problem, we incorporate memory information to the routing strategy. By using memory information effectively, packets are spread into the communication networks, achieving a higher performance than conventional routing strategies for various network topologies, such as scale-free networks, small-world networks, and scale-free networks with community structures.

关键词： Congestion Control Packet Routing Problems Decentralized Control Complex Networks

错位条件下基于“感应盲点”分析的非接触变压器建模及优化

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电力系统自动化 2017年第2期41卷 15-20,120页

作者：柯光洁陈乾宏徐立刚 Siu-Chung WONG chi k.tse 南京航空航天大学江苏省南京市210016 香港理工大学电子及资讯工程系

感应式无线电能传输系统中,非接触变压器存在错位等多种工况,引起耦合系数等参数大范围变化,影响系统特性。为了建立错位条件下非接触变压器的耦合系数模型,文中基于场路结合的分析方法,分析磁通耦合特性,给出了非接触变压器的"感应盲点... 详细信息

感应式无线电能传输系统中,非接触变压器存在错位等多种工况,引起耦合系数等参数大范围变化,影响系统特性。为了建立错位条件下非接触变压器的耦合系数模型,文中基于场路结合的分析方法,分析磁通耦合特性,给出了非接触变压器的"感应盲点"求解方法;并结合其耦合系数的变化规律,建立非接触变压器错位条件下耦合系数的计算模型。基于磁场分布的特点,进一步提出副边多绕组的新型非接触变压器结构。采用优化后的变压器结构,设计制作了60 W输出的非接触变换器,耦合系数的计算结果和实际测试结果一致,证明了所提"感应盲点"分析方法与耦合系数计算模型的正确性,验证了优化后的新型非接触变压器具有良好的错位自适应能力。

关键词：无线电能传输感应盲点耦合系数模型非接触变压器

A Tree-Based Data Collecting Network Structure for Wireless Sensor Networks

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Journal of Electronic Science and Technology of china 2008年第3期6卷 274-278页

作者： chi-Tsun Cheng chi k. tse Francis C. M. Lau the Department of Electronic and Information Engineering The Hong Kong Polytechnic University Kowloon Hong Kong

In a sensor network with a large number of densely populated sensor nodes, a single target of interest may be detected by multiple sensor nodes simultaneously. Data collected from the sensor nodes are usually highly correlated, and hence energy saving using in-network data fusion becomes possible. A traditional data fusion scheme starts with dividing the network into clusters, followed by electing a sensor node as cluster head in each cluster. A cluster head is responsible for collecting data from all its cluster members, performing data fusion on these data and transmitting the fused data to the base station. Assuming that a sensor node is only capable of handling a single node-to-node transmission at a time and each transmission takes T time-slots, a cluster head with n cluster members will take at least nT time-slots to collect data from all its cluster members. In this paper, a tree-based network structure and its formation algorithms are proposed. Simulation results show that the proposed network structure can greatly reduce the delay in data collection.

关键词： Cluster data transmission network structure sensor network trees

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开关功率变换器中的间歇现象——仿真与实验

电子学报 2004年第2期32卷 264-268页

作者：周宇飞陈军宁 chi k tse 丘水生柯导明时龙兴孙伟锋安徽大学计算机科学与信息工程学院安徽合肥230039 香港理工大学电子与资讯工程学系华南理工大学电信学院广东广州510640 东南大学电子工程系江苏南京210096

文章从电路耦合滤波的角度考虑 ,分析了一类间歇分谐波与间歇混沌现象产生的原理 ,确定耦合电路传导和辐射干扰是产生该现象的根源 ,并构造了一个开关变换器模型作为研究对象 ,仿真与实验均得到了相似的非线性现象 ,同时对不同的电路参... 详细信息

文章从电路耦合滤波的角度考虑 ,分析了一类间歇分谐波与间歇混沌现象产生的原理 ,确定耦合电路传导和辐射干扰是产生该现象的根源 ,并构造了一个开关变换器模型作为研究对象 ,仿真与实验均得到了相似的非线性现象 ,同时对不同的电路参数集 ,讨论并分析了其对间歇现象产生所起的不同影响 ,为变换器的稳定设计提供信息 .该研究方法也可推广到其他非线性电路系统的类似研究中 .

关键词：开关功率变换器耦合寄生信号分叉间歇分谐波间歇混沌