检索结果-内蒙古大学图书馆

IEEE Conference on Decision and Control

作者： Fernando Lobo Pereira Geraldo Nunes da Silva Institute for Systems and Robotics-Porto Faculdade de Engenharia da Universidade do Porto 4200-465 Porto Portugal Department of Computer Science and Statistics Universidade Estadual Paulista COD S. Jose do Rio Preto Brasil

ISBN: (纸本)9781612848006

This article presents and discusses necessary conditions of optimality for infinite horizon dynamic optimization problems with inequality state constraints and set inclusion constraints at both endpoints of the trajectory. The cost functional depends on the state variable at the final time, and the dynamics are given by a differential inclusion. Moreover, the optimization is carried out over asymptotically convergent state trajectories. The novelty of the proposed optimality conditions for this class of problems is that the boundary condition of the adjoint variable is given as a weak directional inclusion at infinity. This improves on the currently available necessary conditions of optimality for infinite horizon problems.

关键词： optimality infinite horizon State variable Novelty Necessary End Point Infinity

来源：评论

学校读者我要写书评

暂无评论

Modeling buffers with data refresh semantics in automotive architectures

Modeling buffers with data refresh semantics in automotive a...

引用

6th Embedded systems Week 2010, ESWEEK 2010 - 10th ACM International Conference on Compilers, Architecture and Synthesis for Embedded systems, EMSOFT'10

作者： Phan, Linh T.X. Schneider, Reinhard Chakraborty, Samarjit Lee, Insup Department of Computer and Information Science University of Pennsylvania United States Institute for Real-Time Computer Systems TU Munich Germany

ISBN: (纸本)9781605589046

Automotive architectures consist of multiple electronic control units (ECUs) which run distributed control applications. Such ECUs are connected to sensors and actuators and communicate via shared buses. Resource arbitration at the ECUs and also in the communication medium, coupled with variabilities in execution requirements of tasks results in jitter in the signal/data streams existing in the system. As a result, buffers are required at the ECUs and bus controllers. However, these buffers often implement different semantics - FIFO queuing, which is the most straightforward buffering scheme, and data refreshing, where stale data is overwritten by freshly sampled data. Traditional timing and schedulability analysis that are used to compute, e.g., end-to-end delays, in such automotive architectures can only model FIFO buffering. As a result, they return pessimistic delay and resource estimates because in reality overwritten data items do not get processed by the system. In this paper we propose an analytical framework for accurately modeling such data refresh semantics. Our model exploits a novel feedback control mechanism and is purely functional in nature. As a result, it is scalable and does not involve any explicit state modeling. Using this model we can estimate various timing and performance metrics for automotive ECU networks consisting of buffers implementing different data handling semantics. We illustrate the utility of this model through three case studies from the automotive electronics domain.

关键词： Semantics

来源：评论

学校读者我要写书评

暂无评论

Multifractal analysis of blood oxygen level dependent functional magnetic resonance imaging

Multifractal analysis of blood oxygen level dependent functi...

引用

IEEE International Symposium on Signal Processing and Information Technology (ISSPIT)

作者： Catarina Runa Miranda Filipe Soares Inês Sousa Filipe Janela Mário Forjaz Secca Physics Department Faculty of Sciences and Technology New University of Lisbon Portugal Instituto de Telecomunicações Department of Computer Science University of Beira Interior Portugal Institute for Systems and Robotics Department of Bioengineering Instituto Superior Técnico Portugal Siemens S.A. Healthcare Sector Portugal

The aim of this work is to propose a multifractal analysis method for Multifractal Detrended Fluctuation analysis (MF-DFA) of Blood Oxygen Level Dependent (BOLD) functional Magnetic Resonance Imaging (fMRI). The fMRI signals exhibit a 1/f power spectrum, hence their structure has self-similarity and long memory, being usually successfully analyzed by different fractal analysis methods without a previous knowledge of haemodynamic models. Therefore, to validate activation detection using the MF-DFA method, a comparison study between images obtained using General Linear Model (GLM) and Independent Component Analysis (ICA) was conducted and evaluated by discrimination power, applying Receiver Operating Characteristic (ROC) analysis to the results.

关键词： Transforms Power measurement

来源：评论

学校读者我要写书评

暂无评论

Model-based analysis, synthesis and testing of automotive hardware/software architectures

Model-based analysis, synthesis and testing of automotive ha...

引用

6th Embedded systems Week 2010, ESWEEK 2010 - 10th ACM International Conference on Compilers, Architecture and Synthesis for Embedded systems, EMSOFT'10

作者： Chakraborty, Samarjit Ramesh, S. Teich, Jürgen Institute for Real-Time Computer Systems TU Munich Germany India Science Laboratory General Motors R and D India Department of Computer Science University of Erlangen-Nuremberg Germany

ISBN: (纸本)9781605589046

This tutorial is concerned with various aspects of model-based design of hardware/software architectures of automotive systems. It will be split into three parts, the first dealing with model-based analysis of automotive ECU networks, the second with synthesis of schedules for such networks, and finally the third with model-based testing of such architectures.

关键词： Model checking

来源：评论

学校读者我要写书评

暂无评论

Decentralized Task Sequencing and Multiple Mission Control for Heterogeneous Robotic Networks

Decentralized Task Sequencing and Multiple Mission Control f...

引用

2011 IEEE International Conference on robotics and Automation(2011年IEEE世界机器人与自动化大会 ICRA 2011)

作者： Donato Di Paola Andrea Gasparri Giovanni Ulivi David Naso Frank L. Lewis Institute of Intelligent Systems for Automation (ISSIA) National Research Council (CNR)70126 BariI Faculty of Engineering Computer Science and Automation DepartmentUniversity "Roma Tre"00146 RomeI Department of Electrical and Electronic Engineering (DEE) Polytechnic of Bari70126 BariItaly the Automation and Robotics Research Institute University of Texas at ArlingtonFort WorthTX 76118-

In this paper a novel decentralized approach for task sequencing within a multiple missions control framework is presented. The main contribution of this work concerns the decentralization of a control framework for multiple mission execution in order to enhance the robustness of the system, and the application of the latter to a heterogeneous robotic network. The proposed approach is based on the Matrixbased Discrete Event Framework (MDEF). This formalism is adapted to networks of heterogeneous robots, i.e., robots with different capabilities, and to the decentralized control of mission execution using a consensus-based approach which guarantees the agreement among robots on executed actions and their consequences.

关键词： Mathematical model Equations Resource management Robot sensing systems Availability Multiagent systems

来源：评论

学校读者我要写书评

暂无评论

Evaluating the impact of communication latency on applications running over on-chip multiprocessing platforms: A layered approach

Evaluating the impact of communication latency on applicatio...

引用

8th IEEE International Conference on Industrial Informatics, INDIN 2010

作者： Indrusiak, Leandro Soares Ost, Luciano Copello Moraes, Fernando Gehm Määttä, Sanna Nurmi, Jari Möller, Leandro Glesner, Manfred Real-Time Systems Group Computer Science Department University of York United Kingdom Porto Alegre Brazil Department of Computer Systems Tampere University of Technology Finland Institute of Microelectronic Systems Darmstadt University of Technology Germany

ISBN: (纸本)9781424473007

The evaluation of communication latency in multiprocessor platforms requires the profiling of the application, the description of the architecture of the platform and of the mapping of application tasks onto processing cores. In this paper, we describe a layered approach that allows application developers to obtain accurate figures for communication latency from an abstract model of the application functionality. A complete separation of concerns is a critical part of this approach, so the major contribution here is the definition of interfaces between different layers: an abstract application model, its executable counterpart, the mapping heuristic and the multiprocessor platform model. Case studies with a realistic application and a NoC-based multiprocessor platform show the potential of the proposed approach using two different system evaluation techniques: simulation and static analysis. © 2010 IEEE.

关键词： Mapping

来源：评论

学校读者我要写书评

暂无评论

A multiclassifier system with dynamic ensemble selection applied to the recognition of EMG signals for the control of bio-prosthetic hand

A multiclassifier system with dynamic ensemble selection app...

引用

2010 3rd International Symposium on Applied sciences in Biomedical and Communication Technologies, ISABEL 2010

作者： Kurzynski, Marek Woloszynski, Tomasz Wolczowski, Andrzej Wroclaw University of Technology Department of Systems and Computer Networks 54-401 Wroclaw Poland Wroclaw University of Technology Institute of Computer Science and Robotics 54-401 Wroclaw Poland

ISBN: (纸本)9781424481323

The paper presents a concept of hand movements recognition on the basis of EMG signal analysis. Signal features are represented by coefficient of autoregressive (AR) model, and as classifier the original multiclassifier systems with dynamic ensemble selection are applied. The performance of the proposed methods was experimentally compared against three classifiers using real datasets. The systems developed achieved the highest overall classification accuracies demonstrating the potential of dynamic classifier selection for recognition of EMG signals. ©2010 IEEE.

关键词： Biomedical signal processing

来源：评论

学校读者我要写书评

暂无评论

Particle swarm optimization of high-frequency transformer

Particle swarm optimization of high-frequency transformer

引用

36th Annual Conference of the IEEE Industrial Electronics Society, IECON 2010

作者： Qin, Hengsi Kimball, Jonathan W. Venayagamoorthy, Ganesh K. Department of Electrical and Computer Engineering Missouri University of Science and Technology Rolla MO 65409-0040 United States Real-Time Power and Intelligent Systems Laboratory Missouri University of Science and Technology Rolla MO 65409-0040 United States

ISBN: (纸本)9781424452262

A high frequency transformer is a critical component in a dual active bridge converter (DAB) used in a power electronics-based solid state transformer. Operation of a DAB converter requires its transformer to have a specific amount of winding leakage inductance. The demand for high efficiency requires minimization of transformer copper loss and core loss. Furthermore, available window area limits the winding arrangement of transformer. A hybrid of particle swarm optimization (PSO) and differential evolution (DE) is proposed to solve this multi-objective problem with constraints. DE provides diversity to pbest of each particle, which is missing in standard PSO. The differential evolution particle swarm optimization (DEPSO) algorithm is applied to find optimal transformer designs for DAB converters. Results show the DEPSO method is a generic effective way to find optimal high frequency transformer design. © 2010 IEEE.

关键词： Particle swarm optimization (PSO)

来源：评论

学校读者我要写书评

暂无评论

A design method for oversampled warped cosine-modulated filter banks

A design method for oversampled warped cosine-modulated filt...

引用

作者： Maxim, Vashkevich Alexander, Petrovsky Department of Computer Engineering Faculty of Computer-Aided Design Belarussian State Univercity of Informatics and Radioelectronics 6 P. Brovky str 220013 Minsk Belarus Department of Real-Time Systems Faculty of Computer Science Bialystok Univercity of Technology ul. Wiejska 45A 15-351 Bialystok Poland

ISBN: (纸本)9788390474342

This paper presents an efficient method for the design of M-channel oversampled warped cosine-modulated filter banks. The method consists in filter prototype design for synthesis filter bank using optimization procedure, which minimizes filter bank overall distortion transfer function. Optimization takes into account channel subsampling factors as well. Copyright © 2010 by institute of Electronics, Silesian University of Technology.

关键词： Filter banks

来源：评论

学校读者我要写书评

暂无评论

Preface

Communications and Control Engineering

引用

Communications and Control Engineering 2011年第9780857292551期 vii-xi页

作者： Sun, Zhendong Ge, Shuzhi Sam College Automation Science & Engineering Center for Control and Optimization South China University of Technology Guangzhou510640 China Robotics Institue and Institute of Intelligent Systems and Information Technology University of Electronic Science and Technology of China Chengdu China Department of Electrical and Computer Engineering The National University of Singapore Singapore Singapore

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：