检索结果-内蒙古大学图书馆

A Modified Eigenvector Method for Blind Deconvolution of MIMO systems Using the Matrix Pseudo-Inversion Lemma

Circuits and systems 2011年第1期2卷 7-13页

作者： Mitsuru Kawamoto Kiyotaka Kohno Yujiro Inouye Koichi Kurumatani Information Technology Research Institute National Institute of Advanced Science and Technology Tsukuba Japan Department of Electronic Control Engineering Yonago National College of Technology Yonago-city Japan Department of Electronic and Control Systems Engineering Shimane University Matsue Japan

Recently we have developed an eigenvector method (EVM) which can achieve the blind deconvolution (BD) for MIMO systems. One of attractive features of the proposed algorithm is that the BD can be achieved by calculating the eigenvectors of a matrix relevant to it. However, the performance accuracy of the EVM depends highly on computational results of the eigenvectors. In this paper, by modifying the EVM, we propose an algorithm which can achieve the BD without calculating the eigenvectors. Then the pseudo-inverse which is needed to carry out the BD is calculated by our proposed matrix pseudo-inversion lemma. Moreover, using a combination of the conventional EVM and the modified EVM, we will show its performances comparing with each EVM. Simulation results will be presented for showing the effectiveness of the proposed methods.

关键词： Blind Signal Processing Blind Deconvolution Eigenvector Methods Super-Exponential Mthods MIMO systems Matrix Pseudo-Inversion Lemma

来源：评论

学校读者我要写书评

暂无评论

Time-Weighted Balanced Stochastic Model Reduction

Time-Weighted Balanced Stochastic Model Reduction

引用

IEEE Conference on Decision and control

作者： Maryamsadat Tahavori Hamid Reza Shaker Section for Automation and Control Department of Electronic systems Aalborg University Denmark Department of Energy Technology Aalborg University Denmark

ISBN: (纸本)9781612848006

A new relative error model reduction technique for linear time invariant (LTI) systems is proposed in this paper. Both continuous and discrete time systems can be reduced within this framework. The proposed model reduction method is mainly based upon time-weighted balanced truncation and a recently developed inner-outer factorization technique. Compared to the other analogous counterparts, the proposed method shows to provide more accurate results in terms of time weighted norms, when applied to different practical examples. The results are further illustrated by a numerical example.

关键词： Reduced order systems Stochastic processes Numerical stability Observability Stability analysis controllability Mathematical model

来源：评论

学校读者我要写书评

暂无评论

A case study on timed supervisory control on a linear cluster tool using aggregated timed synthesis

A case study on timed supervisory control on a linear cluste...

引用

9th IEEE International Conference on control and Automation, ICCA 2011

作者： Swartjes, Lennart Su, Rong Rooda, Jacobus E. Systems Engineering Group Department of Mechanical Engineering Eindhoven University of Technology PO Box 513 5600 MB Eindhoven Netherlands Division of Control and Instrumentation School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore

ISBN: (纸本)9781457714757

In this paper an approach to distributed timed supervisory based on aggregated synthesis is given. This paper formulates the distributed timed control problem and introduces a method for finding the distributed timed supervisor with the minimal makespan with reference to other supervisors synthesized with aggregated timed synthesis. The method is based on bottleneck optimization used in manufacturing lines. After introduction of the aggregated timed synthesis, the synthesis is applied to a linear cluster tool in order to compare the introduced bottleneck optimization with nonoptimized aggregated time synthesis. © 2011 IEEE.

关键词： Supervisory personnel

来源：评论

学校读者我要写书评

暂无评论

control Reconfigurability of Bilinear Hydraulic Drive systems

Control Reconfigurability of Bilinear Hydraulic Drive System...

引用

2011 International Conference on Fluid Power and Mechatronics

作者： Hamid Reza Shaker Maryamsadat Tahavori Department of Energy Technology Aalborg University Aalborg Denmark Section for Automation and Control Department of Electronic SystemsAalborg University AalborgDenmark

The objective of the methods within the framework of the plug and play process control and particularly fault tolerant control is to establish control techniques which guarantee a certain performance through control reconfiguration at the occurrence of the faults or *** methods cannot be effective if sufficient redundancy does not exist in the process. A measure for control reconfigurability which reveals the level of redundancy in connection with feedback control is proposed in this paper for bilinear *** proposed control reconfigurability measure is the extension of its gramian-based analogous counterpart,which has been previously proposed for the linear *** control reconfigurability is calculated for the bilinear models of an electro-hydraulic drive to show its relevance to redundant actuating capabilities in the models.

关键词： bilinear systems,control reconfigurability,fault- tolerant control,electro-hydraulic drives

来源：评论

学校读者我要写书评

暂无评论

Mobile robot localization and map building based on laser ranging and PTAM

Mobile robot localization and map building based on laser ra...

引用

2011 IEEE International Conference on Mechatronics and Automation, ICMA 2011

作者： Sheng, Jinbo Tano, Shunichi Jia, Songmin Graduate School of Information Systems University of Electro-Communications 1-5-1 Chofugaoka Chofu-shi Tokyo Japan Department of Electronic Information and Control Engineering Beijing University of Technology 100 Pingle Park Chaoyang District Beijing China

ISBN: (纸本)9781424481149

We propose an effective localization and map building method for mobile robot using a monocular camera and Laser Range Finder (LRF). To compensate for the insufficient information gathered by LRF, we improved a state of the art vision-based SLAM algorithm so-called parallel tracking and mapping (PTAM) system which uses an optimized parallel implementation for localization of mobile robot with high accuracy, and integrate the laser scanning data into local map using an effective combination approach. A reliable spatial model is produced for mobile robot path planning or obstacle avoidance. Compared with the traditional method, the proposed approach can acquire more features in environment of mobile robot and build the map with high speed and improved accuracy in localization. Finally, the effectiveness of proposal is verified by some real experimental results. © 2011 IEEE.

关键词： Mobile robots

来源：评论

学校读者我要写书评

暂无评论

Software defined radio - design and implementation of complete platform

Software defined radio - design and implementation of comple...

引用

IEEE Design and Diagnostics of electronic Circuits and systems (DDECS)

作者： P. Pawłowski A. Dąbrowski P. Skrzypek P. Roszak A. Pałejko T. Walenciak M. Mor Division of Signal Processing and Electronic Systems Control and System Engineering Department of Computing Poznań University of Technology Poznan Poland

In this paper, a complete architecture of the software defined radio receiver is proposed. First, a precise definition and the discussion of the problem is given. Next, an outline of the system topology is proposed, together with the requirements for each component of the system. Finally, a custom implementation is presented, including specifications, design considerations, and simulations.

关键词： Band pass filters Receivers Field programmable gate arrays Adaptive filters Digital signal processing Computer architecture

来源：评论

学校读者我要写书评

暂无评论

Motion vehicles tracking in intelligent transportation visual surveillance systems

引用

Nanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and technology 2012年第SUPPL.2期36卷 216-222页

作者： Wu, Lin-Feng Xiong, Gang Qian, Shou-Yi Xie, Li Zhejiang Provincial Key Lab. of Information Network Technology Department of Information Science and Electronic Engineering Zhejiang University Hangzhou 310027 China State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing 100190 China Cloud Computing Industrial Technology Innovation and Incubation Center Dongguan Research Institute of CASIA Chinese Academy of Sciences Dongguan 523808 China Wenzhou Research Institute of Electronics and Information Wenzhou 325003 China

In terms of the difficulty of vehicle tracking in complex environment of the visual surveillance system, an object tracking algorithm is proposed for the applications in practical visual surveillance systems for intelligent traffic. A block-based Gaussian mixture background modeling method for object detection is presented to reduce the computational complexity of moving vehicle object abstraction. An adaptive tracking algorithm fused with color features and texture features is described to better adapt the traffic scene variation. The experimental results show that the proposed algorithm can effectively deal with the complex urban traffic conditions and the tracking performance is better than the conventional particle filter method and single feature based non-adaptive object tracking method.

关键词： Tracking (position)

来源：评论

学校读者我要写书评

暂无评论

A multi-class pattern recognition method for motor imagery EEG data

A multi-class pattern recognition method for motor imagery E...

引用

2011 IEEE International Conference on systems, Man, and Cybernetics, SMC 2011

作者： Fang, Yonghui Chen, Minyou Harrison, Robert F. State Key Laboratory of Power Transmission Equipment and System Security and New Technology Chongqing University Chongqing China Department of Automatic Control and Systems Engineering University of Sheffield Sheffield S1 3JD United Kingdom School of Electronic and Information Engineering Southwest University Chongqing China

ISBN: (纸本)9781457706523

The Common Spatial Patterns (CSP) algorithm is useful for calculating spatial filters for detecting event-related desynchronization (ERD) for use in ERD-based brain-computer interfaces (BCIs). However, basic CSP is a supervised algorithm suited only to two-class discrimination;it is unable to solve multiclass discrimination problems. This paper proposes a new method named the binary common spatial patterns (BCSP) algorithm to extend the basic CSP method to multi-class recognition. Our method arranges the spatial filters and Fisher classifiers in the form of a binary tree whereby N - 1 spatial filters and N - 1 Fisher classifiers are calculated for N class recognition. This is fewer than must be calculated in other methods (e.g. one-versus-rest, OVR). This makes the overall classification procedure less redundant. Simulation results show that BCSP has better performance than the OVR scheme and outperforms the three best teams in the 2008 BCI-competition. © 2011 IEEE.

关键词： Brain computer interface

来源：评论

学校读者我要写书评

暂无评论

A buck converter for DVS compatible processors in mobile computing applications using fuzzy logic implemented in a risc based microcontroller

A buck converter for DVS compatible processors in mobile com...

引用

2nd International Conference on Circuits, systems, control, Signals, CSCS'11

作者： Tapou, Monaf S. Al-Raweshidy, Hamed S. Abbod, Maysam Al-Kindi, Manal J. Control and System Engineering Department University of Technology Baghdad Iraq Wireless Networks and Communications Group School of Eng. and Design Brunel Univ. Uxbridge Middlesex UB8 3PH United Kingdom Intelligent Systems School of Engineering and Design Brunel University United Kingdom Department of Electrical and Electronic Engineering Al-Nahrain University Baghdad Iraq

ISBN: (纸本)9781618040350

The design of voltage regulators for mobile computing applications is complicated by several factors that lead to making tradeoffs between efficiency, voltage ripple and dynamic response. Careful choices must be made in selecting the passive and active components order to accommodate for the performance figures required to achieve compatibility for DVS ready processors. A suitable control scheme must be selected that can suffice the stability and dynamic response required. This paper describes the design of Buck converter that has a fuzzy controller implemented using Atmel Atmega189 RISC Based microcontroller with a choice of hardware components that will ensure better efficiency while delivering good stability and dynamic response. System simulation was carried out using MATLAB/SIMULINK. Simulation results showed that the fuzzy controller has the capability of providing response characteristics that makes it comparable with PID controllers and more suitable for implementation using microcontrollers.

关键词： Microcontrollers

来源：评论

学校读者我要写书评

暂无评论

Condition monitoring opportunities using vehicle-based sensors

Condition monitoring opportunities using vehicle-based senso...

引用

作者： Ward, C.P. Weston, P.F. Stewart, E.J.C. Li, H. Goodall, R.M. Roberts, C. Mei, T.X. Charles, G. Dixon, R. Control Systems Group Electronic and Electrical Engineering Loughborough University Loughborough United Kingdom Birmingham Centre for Rail Research and Education University of Birmingham Edgbaston Birmingham United Kingdom Department of Engineering and Technology Manchester Metropolitan University Manchester United Kingdom School of Computing Science and Engineering University of Salford Salford United Kingdom School of Engineering University of Nottingham University Park Nottingham United Kingdom

Recent increases in railway patronage worldwide have created pressure on rolling stock and railway infrastructure through the demand to improve the capacity and punctuality of the whole system, and this demand must also be balanced with reducing life-cycle costs. Condition monitoring is seen as a significant contributor in achieving this. The emphasis of this article is on the use of sensors mounted on rolling stock to monitor the condition of infrastructure and the rolling stock itself. This is set in the context of modern rolling stock being fitted with high-capacity communication buses and multiple sensors, resulting in the potential for advanced processing of collected data. This article brings together linked research that uses a similar set of rolling stock sensors, and discusses: general usage and benefits, a track defect detection method, running gear condition monitoring, and absolute train speed detection.

关键词： Condition monitoring

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：