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2009中国控制与决策会议

作者： SongLin Wo~1,and Hao Xiao~2 1.school of Electrical and information Engineering,Jiangsu Teachers University of Technology,Jiangsu Changzhou 213001, 2.school of Electrical and information,Jiangsu University of Science and Technology,Jiangsu Zhenjiang 212003

＜正＞This paper is concerned with the design problem of non-fragile guaranteed cost controller for discrete descriptor systems with parameter *** controller gain variations are assumed to be time-invariant and norm-bounded appearing in the controller *** conditions for the existence of a static state feedback guaranteed cost controller with additive uncertainty and multiplicative uncertainty are obtained in terms of a set of matrix inequalities,*** these conditions,the problems of non-fragile guaranteed cost controller for discrete descriptor systems are *** expressions of desired non-fragile state feedback guaranteed cost controllers are also given,and no matrix decomposition is ***,an illustrative example is provided to demonstrate the applicability of the proposed approach.

关键词： Discrete descriptor systems non-fragile control controller gain variation guaranteed cost control

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Numerical simulation of Meiyu front and the diagnosis of moist vorticity vector

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Progress in Natural Science:Materials International 2007年第11期17卷 1341-1347页

作者： Ping Fan1,2 and Luo Zhexian2(1. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China 2. Nanjing University of information Sciences & Technology, Nanjing 210044, China) Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China Nanjing University of information Sciences & Technology Nanjing 210044 China

Moist vorticity vector is introduced to study the development and evolution of mesoscale convective vortex (MCV) in the Meiyu front precipitation with the Advanced Regional Predication System (ARPS). In this study, the heavy rainfall is simulated to investigate the genesis, development and dissipation of middle scale convective vortex, which occurred from 0000 UTC 3 July to 1200 UTC 5.July over the Jianghuai River valley. Moist vorticity vector (MVV) has zonal, radial and vertical components in its 3D spatial distribution. The simulation shows that the vertical component of moist vorticity vector well demonstrates the spatial distribution characteristics of middle scale convective vortex, especially in the process of Meiyu front precipitation. Diagnosis upon zonal, radial averaged and mass-integrated quantities of MVV shows that its vertical component and the surface precipitating ratio are in phase with a correlation coefficient of 0.68, indicating that the vertical component of MVV is closely associated with the Meiyu front precipitation. In addition, the tendency of the vertical component of MVV is mainly determined by the interaction between the vorticity and the zonal and radial gradient of condensational or depositional heating.

关键词： moist vorticity vector mesoscale convective vortex Meiyu front precipitation

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Fusing Global and Regional Features for Image Classification

Fusing Global and Regional Features for Image Classification

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2009中国控制与决策会议

作者： Xiaohong Hu~(1,2),Xu Qian~2 1.school of information and Management Science,Henan Agricultural University,Zhengzhou,45.002,China 2.school of Mechanical Electronic and information Engineering,China University of Mining and Technology,Beijing,100083,China

＜正＞This paper presents a novel approach to image classification based on the fusion of global and regional features,which are helpful to describe image semantics to classification,in which vague sets for positive and negative evidences is applied to analyze and optimize the decisions obtained by *** integrating two sides of multiple classification decisions,the classification is optimized and synthesized,thus the processing and results will be both powerful and *** results show that the performance of the classification is greatly improved.

关键词： vague set decision fusion support vector machine

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Geometric construction of energy-minimizing Bézier curves

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Science China(information Sciences) 2011年第7期54卷 1395-1406页

作者： XU Gang 1,4,5.WANG GuoZhao 2 & CHEN WenYu 2,3 1 Institute of Graphics and Image,Hangzhou Dianzi University,Hangzhou 310018,China 2 Department of Mathematics,Zhejiang University,Hangzhou 310027,China 3 school of Computer Engineering,Nanyang Technological University,639798,Singapore 4 Galaad,INRIA Sophia-Antipolis,2004 Route des Lucioles,06902,France 5.State Key Lab of CAD & CG,Zhejiang University,Hangzhou 310027,China Institute of Graphics and Image Hangzhou Dianzi University Hangzhou China Galaad INRIA Sophia-Antipolis Sophia Antipolis France State Key Lab of CAD & CG Zhejiang University Hangzhou China Department of Mathematics Zhejiang University Hangzhou China school of Computer Engineering Nanyang Technological University Singapore Singapore

Modeling energy-minimizing curves have many applications and are a basic problem of Geometric *** this paper,we propose the method for geometric design of energy-minimizing B′ezier ***,the necessary and sufficient condition on the control points for B′ezier curves to have minimal internal energy is *** on this condition,we propose the geometric constructions of three kinds of B′ezier curves with minimal internal energy including stretch energy,strain energy and jerk *** some control points,the other control points can be determined as the linear combination of the given control *** compare the three kinds of energy-minimizing B′ezier curves via curvature combs and curvature plots,and present the collinear properties of quartic energy-minimizing B′ezier *** also compare the proposed method with previous methods on efficiency and ***,several applications of the curve generation technique,such as curve interpolation with geometric constraints and modeling of circle-like curves are discussed.

关键词： curve design minimal energy geometric construction interpolation with constraints circle-like curves

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Non-fragile Control for a Class of Uncertain Time-delay Switched Fuzzy Systems

Non-fragile Control for a Class of Uncertain Time-delay Swit...

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2010 Chinese Control and Decision Conference

作者： Yingying Ye~1,Hong Yang~2,Le Zhang~(2,3) 1.school of information Science and Engineering,Shenyang Ligong University,Shenyang 110195.China 2.school of information Engineering,Shenyang University,Shenyang 110044,China 3.school of Electronic and information Engineering,Dalian University of Technology,Dalian 116023,China

＜正＞This paper considers the stability problem for a class of switched fuzzy（SF） time-delay systems.A sufficient condition for the existence of non-fragile state-feedback controllers and the switching law for a class of uncertain switching fuzzy time-delay systems are proposed based on single Lyapunov function technique,under the assumption that the controller gain to be designed has *** corresponding results are all formulated in terms of linear matrix inequalities（LMIs）.Simulation results show the effectiveness of the design method.

关键词： Switched Systems Fuzzy Systems Quadratic Stability Global Model Switching Law

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基于GA-AHMM的联机手绘图形识别技术

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系统工程与电子技术 2004年第3期26卷 378-381页

作者：裴继红李翠芸龚忻深圳大学现代教育技术与信息中心广东深圳518060 西安电子科技大学电子工程学院陕西西安710071

提出了一种遗传算法(geneticalgorithm,GA)和自适应隐马尔科夫模型(hiddenMarkwmodel,AHMM)混合的联机手绘图形识别方法。由于隐马尔科夫模型(HMM)的训练本质上是一种梯度下降的优化方法,算法易陷入局部最优,影响了其应用。为此,采用GA... 详细信息

提出了一种遗传算法(geneticalgorithm,GA)和自适应隐马尔科夫模型(hiddenMarkwmodel,AHMM)混合的联机手绘图形识别方法。由于隐马尔科夫模型(HMM)的训练本质上是一种梯度下降的优化方法,算法易陷入局部最优,影响了其应用。为此,采用GA训练HMM模型参数,并给出了GA和HMM的两种混合训练方式:前端GA HMM模型和内嵌式GA HMM模型,GA算法能随机地调整HMM模型训练的初始值,使HMM跳出局部最优,较好地克服了HMM训练容易陷入局部最优的问题。另外,采用带有反馈环节的闭环AHMM代替传统的开环前向HMM模型对手绘图形识别,改善了HMM的自适应能力,显著提高了对图形的识别率和识别速度。试验结果证明了方法的有效性。

关键词：遗传算法联机识别手绘图形隐马尔科夫模型

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Fault Diagnosis for a Class of Nonlinear Systems with Time-Delay using observers

Fault Diagnosis for a Class of Nonlinear Systems with Time-D...

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2010 Chinese Control and Decision Conference

作者： Ying Gu~(1,2),Guang-Hong Yang~1 1.school of information Science and Engineering,Northeastern University,Shenyang,110004 2.school of Mathematics and Physics,Dalian Jiaotong University,Dalian,116028

＜正＞This paper investigates parameter fault diagnosis for a class of nonlinear systems with time-delay by using adaptive observer *** nonlinear fault distribution function depends not only on the inputs and outputs of the system but also on unmeasured states which causes additional complexity in fault *** on the adaptive observer technique,the detection and estimation tool is *** the Lipschitz condition,a fault detection observer and adaptive diagnosis observer are proposed.

关键词： Fault diagnosis Adaptive observer Nonlinear systems Lipschitz condition

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AES algorithm for Dynamic Knapsack Problems in Capital Budgeting

AES algorithm for Dynamic Knapsack Problems in Capital Budge...

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2010 Chinese Control and Decision Conference

作者： Xiaoling Cui~1,Dazhi Wang~2,Yang Yan~2 1.school of Economics and Management,Liaoning Shihua University,Fushun,113001 2.school of information Science and Engineering,Northeastern University,Shenyang,110004

＜正＞Dynamic knapsack problems can model many economic phenomenon,such as capital *** agent based evolutionary search algorithm（AES） is proposed to solve a set of DKP problems which are generated according to dual mapping *** in a grid-like environment,all agents shall compete with their neighborhood to enhance their energy and acquire knowledge through Population-Based Incremental *** the same time, triggered random immigration scheme is introduced into the algorithm to maintain the diversity of the population. Simulation results on a set of dynamic knapsack problems and /-test showed that AES with triggered random immigration scheme can obtain a better performance than several other similar genetic algorithms.

关键词： Capital budgeting Dynamic knapsack problem Dynamic evolutionary algorithm Agent

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Non-fragile Robust Control for Singular Systems with Nonlinear Perturbation And Time-Delay

Non-fragile Robust Control for Singular Systems with Nonline...

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2010 Chinese Control and Decision Conference

作者： Jiancheng Wu~1,Songlin Wo~2 1.school of information Science and Engineering,Jiangsu Polytechnic University,Jiangsu Changzhou 213016,China 2.school of Electrical and information Engineering,Jiangsu Teachers University of Technology,Jiangsu Changzhou 213001

＜正＞This paper is concerned with the non-fragile robust control problems for singular systems with nonlinear structured perturbation and *** perturbation is a continuous function of time and system state,and the Jacobi matrix of the function is *** aim is to design a non-fragile robust controller and a non-fragile robust guaranteed cost controller respectively. The sufficient conditions for the existence of the two controllers are given in terms of linear matrix inequalities（LMIs）.When these LMIs are feasible,explicit expressions of the two controllers are obtained *** illustrative example is given to demonstrate the validity and applicability of the proposed approach.

关键词： singular systems nonlinear perturbation delay non-fragile robust controller guaranteed cost control

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Study on Key Technologies of Coal Mine Main Fan Automatic Switchover with Ventilation Unceasing

Study on Key Technologies of Coal Mine Main Fan Automatic Sw...

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2010 Chinese Control and Decision Conference

作者： Xinzhong Wu~1,Xiaoping Ma~2,Zihui Ren~3 1.school of information and Electrical Engineering,China University of Mining and Technology,Xuzhou,221008 2.school of information and Electrical Engineering,China University of Mining and Technology,Xuzhou,221008

The currently-used mine main fan switchover is to stop the working fan first and then to start standby fan, which makes underground ventilation interruption during switching,and it is liable to cause gas concentration exceeding limits in high gas mine and threaten mine production *** on the thought of changing the fan on standby from cold standby to hot standby before switchover,a novel way of main fan switchover aiming at ventilation unceasing with the aid of ventilation network switchover is put *** the influence on ventilation system,ventilation interruption throughout switchover formerly can be improved to air flow rate fluctuation during ventilation network switchover *** ventilation stability during main fan switchover can be realized and potential safety hazard of gas concentration exceeding limits is eliminated *** to the relationship between the boundary condition for the safety running of main fan and the stability of ventilation system air flow rate studied in this paper, based on four louver air-door cooperative regulation,a control strategy for ventilation network switchover to realize ventilation unceasing during main fan switching was *** an automatic control system has been developed with *** operation indicates that the way of main fan switchover presented in this paper can deal with the deficiencies of the way currently-used,and it is important and significant for the safety of mine production.

关键词： Mine Main Fan Automatic Switchover with Ventilation Unceasing Gas Concentration Production Safety

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