检索结果-内蒙古大学图书馆

IDENTIFICATION AND control EXPERIMENTATION WITH A REMOTE PLATFORM OF AN AUTONOMOUS IN-SCALE FAST-FERRY MODEL

IFAC Proceedings Volumes 2007年第17期40卷 277-282页

作者： F.J. Velasco E. Revestido E. López E. Moyano Dept. Electronics Technology & Systems Engineering and Automatic Control Univ. Cantabria Dept. Sciences and Navigation Technics Engines and Naval Architecture Univ. País Vasco (UPV/EHU) Dept. Applied Mathematics & Computing Sciences Univ. Cantabria

In this paper a parametric lineal model of heading is obtained, using a remote experimentation platform for marine vehicles. This platform has an in-scale fast-ferry physical model, TF-120 which is autonomous and has all the elements required to emulate a real vessel. The physical model is controlled remotely from a PC using Wi-Fi communications. The tests for the data acquisition with the platform for marine vehicles were carried out in the surroundings of the Bay of Santander. The parametric model identified is used to design a PID controller for heading autopilot and a simulation of this system is performed in Simulink.

关键词： Remote marine laboratory (RML) parametric identification PID control heading control genetic algorithms

来源：评论

学校读者我要写书评

暂无评论

engineering procedure for analysis of nonlinear structure consisting of fuzzy element and typical nonlinear element

Engineering procedure for analysis of nonlinear structure co...

引用

Mediterranean Conference on control and Automation (MED)

作者： Tomislav Sijak Ognjen Kuljaca Ljubomir Kuljaca Brodarski Institute/Control Engineering Dept Zagreb Croatia Alcorn State University/Systems Research Institute Alcorn State USA Faculty of El. Eng. and Computing/Dept. of Control and Computer Zagreb Croatia

engineering procedure for approximate analytical determination of describing function of nonlinear systems with odd static characteristics is presented in the paper. Generalized mathematical expressions for determining such describing function with error estimation are given. The procedure is illustrated on determination of describing function, and corresponding error estimation, of nonlinear structure consisting of fuzzy element and typical nonlinear element.

关键词： Fuzzy control Power harmonic filters Fuzzy systems Nonlinear systems control systems Nonlinear control systems Error analysis Frequency control engineering Signal synthesis

来源：评论

学校读者我要写书评

暂无评论

NONLINEAR NETWORK STRUCTURES FOR FEEDBACK control

引用

Asian Journal of control 2008年第4期1卷

作者： F.L. Lewis Dept. of Electical Engineering The University of Texas at Arlington U.S.A. F. L. Lewis was born in Wärzburg. Germany subsequently studyning in Chile and Goruonstoun School in Scotland. He obtained the Bachelor's Degree in Physics/Electrical Engineering and the Master's of Electrical Engineering Degree at Rice University in 1971. He spent six years in the U.S. navy serving as Navigator aboard the frigate USS Trippe (FF-1075) and Executive Officer and Acting Commanding Officer aboard USS Salinan (ATF-161). In 1977 he received the Master's of Science in Aeronautical Engineering from the University of West Florida. In 1981 he obtained the Ph.D. degree at The Georgia Institute of Technology in Atlanta where he was employed as a professor from 1981 to 1990 and is currently an Adjunct Professor. He is a Professor of Electrical Engineering at The University of Texas at Arlington where he was awarded the Moncrief-O'Donnell Endowed Chair in 1990 at the Automation and Robotics Research Institute. Dr. Lewis has studied the geometric analytic and structural properties of dynamical systems and feedback control automation. His current interests include robotics intelligent control neural and fuzzy systes nonlinear systems and manufacturing process control. He is the author/co-author of 2 U.S. patents 124 journal papers 20 chapters and encyclopedia articles 210 refereed conference papers seven books: Optimal Control Optimal Estimation Applied Optimal Control and Estimation Aircraft Control and Simulation Control of Robot Manipulators Neural Network Control High-Level Feedback Control with Neural Networks and the IEEE reprint volume Robot Control. Dr. Lewis is a registered Professional Engineer in the State of Texas and was selected to the Editorial Boards of International Journal of Control Neural Computing and Applications and Int. J. Intelligent Control Systems. He is the recipient of an NSF Research Initiation Grant and has been continuously funded by NSF since 1982. Since 1991 he has received $1.8 m

A framework is given for controller design using Nonlinear Network Structures, which include both neural networks and fuzzy logic systems. These structures possess a universal approximation property that allows them to be used in feedback control of unknown systems without requirements for linearity in the system parameters or finding a regression matrix. Nonlinear nets can be linear or nonlinear in the tunable weight parameters. In the latter case weight tuning algorithms are not straightforward to obtain. Feedback control topologies and weight tuning algorithms are given here that guarantee closed-loop stability and bounded weights. Extensions are discussed to force control, backstepping control, and output feedback control, where dynamic nonlinear nets are required.

关键词： Intelligent feedback control neural networks neural network structures basis function networks fuzzy control fuzzy-neural networks universal approximation adaptive nonparametric control learning control systems

来源：评论

学校读者我要写书评

暂无评论

A novel approach to automatic music composing: Using genetic algorithm

A novel approach to automatic music composing: Using genetic...

引用

International Computer Music Conference, ICMC 2006

作者： Zad, Damon Daylamani Araabi, Babak N. Lucas, Caru Department of Information Systems and Computing Brunel University United Kingdom Dept. of Electrical and Computer Engineering Control and Intelligent Processing Center of Excellence University of Tehran Iran

Artificial music composition is one of the ever rising problems of computer science. Genetic Algorithm has been one of the most useful means in our hands to solve optimization problems. By use of precise assumptions and adequate fitness function it is possible to change the music composing into an optimization problem. This paper proposes a new genetic algorithm for composing music. Considering entropy of the notes distribution as a factor of fitness function and developing mutation and crossover functions based on harmonic rules and trying to keep the melodies intact during these processes would result in a musical piece pleasant to human ears and interesting for human mind. This algorithm does not have the constraints of the previous algorithms. Restraining mutation and crossover functions with a goal of producing melodies based on acceptable melodies composed by humans, this algorithm is not bound to any genre, instrument or melody. The experimental results of this approach show that it is near to the human composing and the results produced from it are more acceptable than the ones produced by its predecessors.

关键词： Genetic algorithms

来源：评论

学校读者我要写书评

暂无评论

Analytical determination of describing function of nonlinear element with fuzzy logic

Analytical determination of describing function of nonlinear...

引用

IEEE International Symposium on Industrial Electronics 2005, ISIE 2005

作者： Šijak, Tomislav Kuljača, Ognjen Antonić, Radovan Kuljača, Ljubomir Brodarski Institute Control Engineering Dept. Zagreb Croatia Alcorn State University Dept. of Advanced Technologies Alcorn State United States University of Split Maritime Faculty Split Croatia University of Zagreb Faculty of Electrical Engineering and Computing Zagreb Croatia

ISBN: (纸本)0780387384

The paper presents the procedure for analytical determination of describing function of nonlinear element with fuzzy logic nonlinearity. The procedure is based on the method of analytical determination of describing function of generalized static characteristic of nonlinear element. The procedure is also illustrated with examples. © 2005 IEEE.

关键词： Nonlinear control systems

来源：评论

学校读者我要写书评

暂无评论

A general updating rule for discrete Hopfield-type neural network with delay

A general updating rule for discrete Hopfield-type neural ne...

引用

17th International Joint Conference on Artificial Intelligence, IJCAI 2001

作者： Qiu, Shenshan Tsang, Eric C.C. Yeung, Daniel S. Wang, Xizhao Dept. of Computing Hong Kong Polytechnic University Hong Kong Department of Automatic Control Engineering South China University of Technology Guangzhou 510640 China

In this paper, the Hopfield neural network with delay (HNND) is studied from the standpoint of regarding it as an optimized computational model. Two general updating rules for network with delay (GURD) are given based on Hopfield-type neural networks with delay for optimization problems and characterized dynamic thresholds. It is proved that in any sequence of updating rule modes, the GURD monotonously converges to a stable state of the network. The diagonal elements of the connection matrix are shown to have an important influence on the convergence process, and they represent the relationship of the local maximum value of the energy function with the stable states of the networks. All ordinary DHNN algorithms are instances of GURD. It can be shown that the convergence conditions of GURD may be relaxed in the context of applications, for instance, the condition of nonnegative diagonal elements of the connection matrix can be removed from the original convergence theorem. New updating rule mode and restrictive conditions can guarantee the network to achieve a local maximum of the energy function.

关键词： Hopfield neural networks

来源：评论

学校读者我要写书评

暂无评论

A GENERAL UPDATING RULE FOR DISCRETE HOPFIELD-TYPE NEURAL NETWORK WITH TIME-DELAY AND THE CORRESPONDING SEARCH ALGORITHM

引用

International Journal of Computational Intelligence and Applications 2001年第4期1卷 399-412页

作者： DANIEL S. YEUNG SHENSHAN QIU ERIC C. C. TSANG XIZHAO WANG Dept. of Computing The Hong Kong Polytechnic University HungHom Hong Kong China Department of Automatic Control Engineering South China University of Technology Guangzhou 510640 China Hubei University Hubei China

In this paper, the Hopfield neural network with delay (HNND) is studied from the standpoint of regarding it as an optimizing computational model. Two general updating rules for networks with delay (GURD) are given based on Hopfield-type neural networks with delay for optimization problems and characterized by dynamic thresholds. It is proved that in any sequence of updating rule modes, the GURD monotonously converges to a stable state of the network. The diagonal elements of the connection matrix are shown to have an important influence on the convergence process, and they represent the relationship of the local maximum value of the energy function to the stable states of the networks. All the ordinary discrete Hopfield neural network (DHNN) algorithms are instances of the GURD. It can be shown that the convergence conditions of the GURD may be relaxed in the context of applications, for instance, the condition of nonnegative diagonal elements of the connection matrix can be removed from the original convergence theorem. A new updating rule mode and restrictive conditions can guarantee the network to achieve a local maximum of the energy function with a step-by-step algorithm. The convergence rate improves evidently when compared with other methods. For a delay item considered as a noise disturbance item, the step-by-step algorithm demonstrates its efficiency and a high convergence rate. Experimental results support our proposed algorithm.

关键词： Discrete Hopfield neural network convergence conditions stable state convergence theorem

来源：评论

学校读者我要写书评

暂无评论

Agent-oriented captology for medical informatics

Agent-oriented captology for medical informatics

引用

16th Medical Informatics Europe Congress, MIE 2000 and 45th Annual Congress on German Association for Medical Informatics, Biometry, andEpidemiology, GMDS 2000

作者： Bârbat, Boldur E. Zamfirescu, Constantin B. Costache, Gabriel 'Lucian Blaga' University in Sibiu Faculty of Engineering Dept. of Comp. Sc. and Automatic Control 4 Emit Cioran Street 2400 Sibiu Romania Oltchim S.A. Dept. of Computing Centre 1 Uzinei St. 1000 Rm. Vâlcea Romania

ISBN: (纸本)1586030639

Considering that neither captology nor agent-orientation, are applied in medical informatics, as they could be, the paper presents a broad-spectrum gene-ric architectural framework to support developing adaptive medical applications, based on synergistic correlation between persuasive interfaces and intelligent agents. Their main features are adapted for medical informatics. Lying on this groundwork, the design space for agent-oriented persuasive applications is defined and several guidelines for its main dimensions are given. The approach is instantiated through an agent-based test-bench application, having the purpose to persuade to quit smoking.

关键词： Medical applications

来源：评论

学校读者我要写书评

暂无评论

Lyapunov coupled equations for infinite jump linear systems

Lyapunov coupled equations for infinite jump linear systems

引用

IEEE Conference on Decision and control

作者： M.D. Fragoso J. Baczynski Dept. of Syst. & Control Nat. Lab. for Sci. Comput. Petropolis Brazil Systems and Computing Engineering Program Federal University of Rio de Janeiro Rio de Janeiro Brazil

ISBN: (纸本)0780366387

Deals with Lyapunov equations for continuous-time Markov jump linear systems (MJLS). We focus on the case in which the Markov chain has a countably infinite state space. It is shown that the infinite MJLS is stochastically stabilizable (SS) if and only if the associated countably infinite coupled Lyapunov equations have a unique norm bounded strictly positive solution. This result does not hold for mean square stabilizability (MSS), since SS and MSS are no longer equivalent in our set up. To some extent, tools from operator theory in Banach space and, in particular, from semigroup theory are the technical underpinning of the paper.

关键词： Equations Linear systems State-space methods control systems Stability Stochastic systems Lifting equipment Roentgenium Vents Markov processes

来源：评论

学校读者我要写书评

暂无评论

A genetic programming heuristic for the one-machine total tardiness problem

A genetic programming heuristic for the one-machine total ta...

引用

1999 Congress on Evolutionary Computation, CEC 1999

作者： Dimopoulos, Christos Zalzala, Ali M.S. University of Sheffield Dept. of Automatic Control and Systems Engineering Mappin Street S1 3JD United Kingdom Heriot-Watt University Department of Computing and Electrical Engineering Edinburgh EH14 4AS United Kingdom

ISBN: (纸本)0780355369

Genetic programming has rarely been applied to manufacturing optimisation problems. In this report we investigate the potential use of genetic programming for the solution of the one-machine total tardiness problem. Combinations of dispatching rules are employed as an indirect way of representing permutations within a modified genetic programming framework. Hybridisation of genetic programming with local search techniques is also introduced, in an attempt to improve the quality of solutions. All the algorithms are tested on a large number of benchmark problems with different levels of tardiness and tightness of due dates. © 1999 IEEE.

关键词： Genetic programming

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：