检索结果-内蒙古大学图书馆

4th IFAC Workshop on Time Delay Systems, TDS 2003

作者： Dymkou, S. Rogers, E. Dymkov, M. Galkowski, K. Owens, D.H. School of Information Technology and Mathematical Sciences University of Ballarat VIC33353 Australia Department of Electronics and Computer Science University of Southampton SouthamptonSO17IBJ United Kingdom Institute of Mathematics National Academy of Sciences of Belarus Surganov 11 Minsk220072 Belarus Institute of Control and Computation Engineering Technical University of Zielona Gora Poland Department of Automatic Control and Systems Engineering University of Sheffield SheffieldSI3JD United Kingdom

Differential linear repetitive processes are a class of continuous-discrete 2D linear systems of both systems theoretic and applications interest. The feature which makes them distinct from other classes of such systems is that information propagation in one of the two independent directions only occurs over a finite interval. Applications areas include iterative learning control and iterative solution algorithms for classes of dynamic nonlinear optimal control problems based on the maximum principle. In this paper, we investigate further the structural links between differential linear repetitive processes and a special class of time delay systems. This leads to some significant new controllability and optimal control results for these processes. © 2003 IFAC.

关键词： Time delay

来源：评论

学校读者我要写书评

暂无评论

H/sub /spl infin// control of discrete linear repetitive processes

H/sub /spl infin// control of discrete linear repetitive pro...

引用

IEEE Conference on Decision and control

作者： W. Paszke K. Galkowski E. Rogers D.H. Owens Institute of Control and Computation Engineering University of Zielona Góra Zielona Góra Poland Department of Electronics and Computer Science University of Southampton Southampton UK Department of Automatic Control and Systems Engineering University of Sheffield Sheffield UK

Repetitive processes are a distinct class of 2D systems (i.e. information propagation in two independent directions) of both systems theoretic and applications interest. They cannot be controlled by direct extension of existing techniques from either standard (termed 1D here) or 2D systems theory. Here we give new results on the relatively open problem of the design of physically based control laws using an H/sub /spl infin// setting. These results are for the sub-class of so-called discrete linear repetitive processes which arise in applications areas such as iterative learning control.

关键词： Iterative algorithms control systems Optimal control Stability Linear systems State-space methods control engineering computing computer science Systems engineering and theory Application software

来源：评论

学校读者我要写书评

暂无评论

Stability and stabilisation of 2D discrete linear systems with multiple delays

Stability and stabilisation of 2D discrete linear systems wi...

引用

IEEE International Symposium on Circuits and Systems (ISCAS)

作者： W. Paszke K. Gatkowski J. Lam Shengyuan Xu E. Rogers D.H. Owens Institute of Control and Computation Engineering University of Zielona Gora Gora Poland Department of Mechanical Engineering University of Hong Kong China Department of Electronics and Computer Science University of Southampton UK Department of Automatic Control and Systems Engineering University of Sheffield UK

In this paper, we study the stability and the stabilisation of 2D discrete linear systems with multiple state delays. All of the new results obtained are based on analysis of the Fornasini-Marchesini state space model with delays and the resulting conditions are given in terms of linear matrix inequalities (LMIs). A numerical example is given to illustrate the effectiveness of the overall approach.

关键词： Stability Linear systems Delay systems Linear matrix inequalities Symmetric matrices automatic control Delay lines Boundary conditions control engineering computing Mechanical engineering

来源：评论

学校读者我要写书评

暂无评论

control of discrete linear repetitive processes with application to a material rolling process

Control of discrete linear repetitive processes with applica...

引用

European control Conference (ECC)

作者： B. Sulikowski K. Galkowski E. Rogers D. H. Owens Institute of Control and Computation Engineering University of Zielona Góra Poland Department of Electronics and Computer Science University of Southampton Southampton SO17 1BJ UK Department of Automatic Control and Systems Engineering University of Sheffield UK

Repetitive processes are a distinct class of 2D systems of both systems theoretic and applications interest. They cannot be controlled by direct extension of existing techniques from either standard or 2D systems theory. Here we give new results on the design of physically based feedback control laws. These results relate to design for performance and are illustrated on data for a model which arises in the modelling of a physical process.

关键词： Stability analysis Process control Asymptotic stability Numerical stability Linear systems Feedforward neural networks Frequency modulation

来源：评论

学校读者我要写书评

暂无评论

Entropy vector median filter

引用

1st Iberian Conference on Pattern Recognition and Image Analysis, IbPRIA 2003

作者： Lukac, Rastislav Smolka, Bogdan Plataniotis, Konstantinos N. Venetsanopoulos, Anastasios N. Slovak Image Processing Center Jarkova 343 Dobsina049 25 Slovakia Department of Automatic Control Silesian University of Technology Akademicka 16 Str Gliwice44-101 Poland Edward S. Rogers Sr. Department of Electrical and Computer Engineering University of Toronto 10 King’s College Road Toronto Canada

ISBN: (纸本)3540402179

In this paper, a new adaptive multichannel filter for the detection and removal of impulsive noise, bit errors and outliers in digital color images is provided. The proposed nonlinear filter takes the advantages of the concept of the local entropy contrast and the robust order-statistics theory. The new entropy based vector median is computationally attractive, robust for a wide range of the impulsive noise corruption and significantly improves the signal-detail preservation capability of the standard vector median filter. © Springer-Verlag Berlin Heidelberg 2003.

关键词： Impulse noise

来源：评论

学校读者我要写书评

暂无评论

Randomized algorithms for semi-infinite programming problems

Randomized algorithms for semi-infinite programming problems

引用

European control Conference (ECC)

作者： Vladislav B. Tadić Sean P. Meyn Roberto Tempo Department of Automatic Control and Systems Engineering University of Sheffield Sheffield UK Department of Electrical and Computer Engineering University of Illinois Urbana-Champaign Illinois USA IEIIT-CNR Politecnico di Torino Torino Italy

In this paper, we explore the possibility of applying Monte Carlo methods (i.e., randomization) to semi-infinite programming problems. Equivalent stochastic optimization problems are derived for a general class of semi-infinite programming problems. For the equivalent stochastic optimization problems, algorithms based on stochastic approximation and Monte Carlo sampling methods are proposed. The asymptotic behavior of the proposed algorithms is analyzed and sufficient conditions for their almost sure convergence are obtained.

关键词： Programming Approximation algorithms Optimization Approximation methods Stochastic processes Monte Carlo methods Algorithm design and analysis

来源：评论

学校读者我要写书评

暂无评论

Stability and control of a physical class of 2D continuous-discrete linear systems using an LMI setting

Stability and control of a physical class of 2D continuous-d...

引用

American control Conference (ACC)

作者： K. Galkowski W. Paszke B. Sulikowski E. Rogers S. Xu J. Lam D.H. Owens Institute of Control and Computation Engineering University of Zielona Góra Poland Institute of Control and Computation Engineering University of Zielona Gόra Poland Department of Electronics and Computer Science University of Southampton UK Department of Mechanical Engineering University of Hong Kong China Department of Automatic Control and Systems Engineering University of Sheffield UK

In this paper we give new results on the analysis and control of differential linear repetitive processes, which are a distinct class of 2D linear systems of both systems theoretic and applications interest. The new results relate to stability and control in the presence of uncertainty in the process state space model. The family of control laws used has a well defined physical basis in terms of the underlying process dynamics.

关键词： control systems Linear systems Stability analysis Algorithm design and analysis automatic control Iterative algorithms Optimal control System testing control engineering computing computer science

来源：评论

学校读者我要写书评

暂无评论

Noisy heart sequences filtering by optimal median based operators 5

Noisy heart sequences filtering by optimal median based oper...

引用

5th IFAC Symposium on Modelling and control in Biomedical Systems 2003

作者： Lukac, Rasto Smolka, Bogdan Zavarsky, Pavol Plataniotis, Kostas N. Venetsanopoulos, Anastasios N. Slovak Image Processing Center Jarkova 343 Dobsina049 25 Slovakia Department of Automatic Control Silesian University of Technology Akademicka 16 Str. Gliwice44-101 Poland Nagaoka University of Technology 1603-1 Kamitomioka Nagaoka940-2188 Japan Edward S. Rogers Sr. Department of Electrical and Computer Engineering University of Toronto 10 King's College Road Toronto Canada

Bit errors and impulses introduced into cardiographic image sequences prohibit to process and evaluate the heart dynamics correctly. Thus, biomedical imaging such as vascular imaging and quantification of heart dynamics is closely related to digital filtering. We provide three-dimensional impulse detection based adaptive median filters designed to perform the optimal filtering situation, where the robust median filter affects only noisy samples, whereas the desired image features remains unchanged. The proposed method holds excellent preserving characteristics and takes the advantage of the superposition property despite the nonlinearity of the median filtering. Copyright © 2003 IF AC.

关键词： Median filters

来源：评论

学校读者我要写书评

暂无评论

Fault detection of non-linear systems based on multi-form quasi-armax modeling and its application to the ship benchmark

引用

IFAC Proceedings Volumes 2003年第16期36卷 1047-1052页

作者： K. Kumamaru K. Inoue Y. Hosoyamada T. Söerström Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Kawazu 680-4 Iizuka 820-8502 Fukuoka Japan Department of Automatic Control and System Analysis Institute of Technology Uppsala University P.O.Box 27 Uppsala Sweden

This paper is concerned with an application study of model-based fault detection method to a ship propulsion system. When modeling the object system, Quasi-ARMAX model with multi-model form is used. In this model, the system non-linearity is incorporated into model parameters by using non-linear non-parametric models (NNMs). Kullback discrimination Information (KDI) is introduced as fault detection index to evaluate the distortion in identified model, which is caused by a fault. The effectiveness of the method is verified through simulation studies on the ship propulsion system.

关键词： Fault detection Kullback discrimination information non-linear system parameter estimation quasi-ARMAX model

来源：评论

学校读者我要写书评

暂无评论

Practical evaluation of messages latencies in CAN

Practical evaluation of messages latencies in CAN

引用

International Conference on Emerging Technologies and Factory Automation (ETFA)

作者： J. Gamiz J. Samitier J.M. Fuertes O. Rubies UE de Electronica EU d'Enginyeria Técnica UPC Barcelona Spain Department Electronica Universitat de Barcelona Barcelona Spain Automatic Control & Computer Engineering Department Technical University of Catalonia Barcelona Spain

In the area of process automation it is increasingly frequent to find control loops that close through communication networks, giving as a result what we know as distributed control systems. The CAN fieldbus (controller area network) is a solid industrial network, with a high baud rate and a capacity for error detection that makes it ideal for aggressive electromagnetic environments. The special idiosyncrasy of CAN, with protocols based on message priority, makes it especially interesting for the implementation of real-time control systems. Here, a CAN node realization is presented. This is useful for industrial and/or educational applications because it allows the study and analysis of the delays suffered by the messages. It is based on a model for the planning of deadline monotonic (DM) type tasks in a global system controlled by CANalyzer. The calculation of the worstcase delay has been carried out by means of the jCAN1 software tool, previously validated on a specific theoretical example. Finally, the results are evaluated and verified, and discussed with reference to the practical results obtained in a multi-node system constituted by a group of identical nodes to the one designed here.

关键词： Delay automatic control Communication system control control systems Electrical equipment industry Automation Communication networks Distributed control Field buses Solids

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：