检索结果-内蒙古大学图书馆

Joint 48th IEEE Conference on Decision and control and 28th Chinese control Conference

作者： Li Ma Fei-Peng Da Kan-Jian Zhang Key Laboratory of Measurement and Control for Complex Systems of Engineering Ministry of EducationSoutheast University

In this paper,the mean-square exponential stability problem is investigated for stochastic Markovian jump open-loop systems with mode-dependent time-varying *** constructing a modified Lyapunov-Krasovskii functional,a delay-dependent sufficient condition for the solvability of the above problem is presented in terms of linear matrix inequalities（LMIs）.The decay rate can be a given finite positive constant and synchronously the derivative of time-varying delays is only required to have a upper bound which is not required to be less than *** examples are presented to illustrate the effectiveness of the theoretical result.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Modified Particle Filter for Object Tracking in Low Frame Rate Video

Modified Particle Filter for Object Tracking in Low Frame Ra...

引用

Joint 48th IEEE Conference on Decision and control and 28th Chinese control Conference

作者： Tao Zhang Shumin Fei Hong Lu Xiaodong Li the Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of EducationInstitute of AutomationSoutheast University the Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Institute of AutomationSoutheast University School of Automation Nanjing Institute of Technology

Object tracking algorithm using modified Particle filter in low frame rate(LFR) video is proposed in this paper,which the object moving significantly and randomly between consecutive frames in the low frame rate ***,Particle filtering use motion transitions to model the movement of the ***,in object tracking with low frame rate sequences,it is very difficult to model significant random jumps of *** key notion of our solution is that using the object detection and extraction to locate the tracked object,while not using the dynamical *** propagate the sample set around the detected regions,which the samples are assumed to be uniformly distributed in the neighborhoods of the detected *** is similar to the general particle filter to propagate *** we compute the likelihood between the target model and the candidate regions,which are based on color histogram *** extensive experiments show that the proposed algorithm performs robustly in a large variety of tracking scenarios.

关键词： frame filter Modified Particle Filter for Object Tracking in Low Frame Rate Video Object Filter

来源：评论

学校读者我要写书评

暂无评论

Scene specified control for internet-based mobile robot operation

Scene specified control for internet-based mobile robot oper...

引用

IEEE International Conference on Mechatronics and Automation

作者： Xudong Ma Xianzhong Dai Fang Fang Ningting Cheng Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education School of Automation South East University Nanjing China

A networked mobile robot in large networks such as Internet often operates under supervisory control and the discrete commands and decisions from the remote operators normally depend on the feedback scene information. Therefore it must be tolerate of the significant and unpredicted time latency that might mislead the robot for time and scene-dependent operations. A series of strategies are presented in this paper to decrease the latency impact and implement scene specified control of a Internet-based mobile robot. Time stamps are attached to each communication packet of scene video, audio and environment information from the robot to remote operator's computer for display, which then sends back control decision or command of the right time stamps with the scene when needed. By allocating a memory buffer for current display and recent status even including video frames the robot recalls the environment with the event time stamps as searching index, which helps to estimate the exact robot position or operation. Reverse position and motion are conducted according to estimation from the memorized information. The strategies have been introduced to improve a practical networked mobile robot control platform with experiment validity given in detail.

关键词： Layout Internet Mobile robots Computer displays Delay Communication system control Auditory displays IP networks Supervisory control Feedback

来源：评论

学校读者我要写书评

暂无评论

Finite-time tracking control of bank-to-turn missiles using terminalsliding mode

引用

ICIC Express Letters 2009年第4期3卷 1373-1380页

作者： Wang, Zhao Li, Shihua Fei, Shumin Key Laboratory of Measurement and Control of Complex Systems ofEngineering School of Automation Southeast University Nanjing 210096 China College of Information and Control Engineering China University of Petroleum Dongying 257061 China

In this paper, a finite-time controller for bank-to-turn (BTT,) missiles isdesigned based on nonsingular terminal sliding mode (NTSM,) technique. Theproposed controller allows that roll rate and angle of attack can track thedesired commands in finite-time with sideslip angle maintained in a small degreerange. Input/output (I/O) feedback linearizaiton technique is used in thecontroller design. Since the dynamics of BTT missile contains uncertainties,nonsingular terminal sliding mode control technique is applied to yield betterrobustness and disturbance rejection properties. Computer simulation results arepresented to validate the effectiveness of our method. ICIC International © 2009.

关键词： Disturbance rejection

来源：评论

学校读者我要写书评

暂无评论

New delay-dependent stability criteria for linear stochastic systems with time-varying delay

New delay-dependent stability criteria for linear stochastic...

引用

Joint 48th IEEE Conference on Decision and control and 28th Chinese control Conference

作者： Jianjiang Yu Kanjian Zhang Shumin Fei the Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education School of Information Science and Technology Yancheng Teachers University the School of Automation Southeast University

In this paper, the problem of the stability for a class of stochastic systems with time-varying delay is investigated. By dividing the delay interval into multiple segments and choosing different weighting matrices in the new LyapunovKrasovskii functional, the delay-dependent sufficient criterion is derived in terms of linear matrix inequalities(LMIs). Neither model transformations nor bounding techniques for cross terms is employed, so the derived criterion is less conservative than the most existing results. Meanwhile, the computational complexity of the obtained stability conditions is reduced because less variables are involved. A numerical example is given to show the application of the proposed method.

关键词： New delay-dependent stability criteria for linear stochastic systems with time-varying delay

来源：评论

学校读者我要写书评

暂无评论

Mixed model based SLAM approach for mobile robot

引用

Nanjing Li Gong Daxue Xuebao/Journal of Nanjing University of Science and Technology 2009年第SUPPL. 1期33卷 98-103页

作者： Fang, Fang Ma, Xu-Dong Dai, Xian-Zhong School of Automation Southeast University Nanjing 210096 China Key Laboratory of Measurement and Control of CSE Complex Systems of Engineering Nanjing 210096 China

A new simultaneous localization and mapping approach based on mixed map model using laser data and odometry information is presented in this paper. Mixed model composed of occupancy grids and line maps is utilized to represent environment maps. At the same time Hough transform is introduced to extract line features. Then robot localization and map building task is accomplished using line features matching and extended Kalman filter. Experimental results indicate the feasibility and validity of this approach.

关键词： Extended Kalman filters

来源：评论

学校读者我要写书评

暂无评论

Nonsingular terminal sliding mode guidance law

引用

Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) 2009年第SUPPL. 1期39卷 87-90页

作者： Wang, Zhao Li, Shihua Fei, Shumin School of Automation Southeast University Nanjing 210096 China Key Laboratory of Measurement and Control of Complex Systems of Engineering Southeast University Nanjing 210096 China Dongying 257061 China

In order to intercept maneuvering targets, a guidance law based on nonsingular terminal sliding mode (NTSM) technique is presented. The proposed NTSM contains the line-of-sight (LOS) angular rate and a desired LOS angular. Through introducing the nonlinear sliding mode surface to improve the convergent characteristics of the system, the states of the closed-loop system can be converged to the origin in finite time and the system performance is improved greatly. The LOS angular rate is nullified in finite time to guarantee the zero miss-distance between the missile and the target;the LOS angular reaches the desired value in finite time to guarantee the missile attitude of hitting the target. With the maneuverability of acceleration of the target regarded as an unknown bounded disturbance, the proposed guidance law is robust to target maneuvering by using the invariance of the variable structure control. The guidance law has a simple structure and is easy to be implemented. Two cases of target maneuvering are simulated to validate the effectiveness of the method. The simulation results show that the algorithm has strong robustness and high guidance accuracy.

关键词： Variable structure control

来源：评论

学校读者我要写书评

暂无评论

Adaptive control for a class of discrete-time time-delay systems with regard to delay parameter

引用

Journal of systems engineering and Electronics 2009年第1期000卷

作者： Chai Lin Cheng Ming Fei Shumin Zhai Junyong Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of EducationSchool of Automation Southeast Univ. Nanjing 210096 P. R. China School of electrics Southeast Univ. Nanjing 210096 P. R. China School of electrics Southeast Univ. Nanjing 210096 P. R. China Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of EducationSchool of Automation Southeast Univ. Nanjing 210096 P. R. China

The memory state feedback control problem for a class of discrete-time systems with input delay and unknown state delay is addressed based on LMIs and Lyapunov-Krasovskii functional method. Under the action of our designed adaptive control law, the unknown time-delay parameter is included in memory state feedback controller. Using LMI technique, delay-dependent sufficient conditions for the existence of the feedback controller are obtained. Finally, the effectiveness of the proposed design method is demonstrated by a numerical example.

关键词： discrete-time time-delay systems adaptive control linear matrix inequality.

来源：评论

学校读者我要写书评

暂无评论

Adaptive RBF neural-networks control for a class of time-delay nonlinear systems

Adaptive RBF neural-networks control for a class of time-del...

引用

作者： Zhu, Qing Fei, Shumin Zhang, Tianping Li, Tao Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education Jiangsu Nanjing 210096 China College of Information Engineering Yangzhou University Jiangsu Yangzhou 225009 China

A control scheme combined with backstepping, radius basis function (RBF) neural networks and adaptive control is proposed for the stabilization of nonlinear system with input and state delay. By using state transformation, the original system is converted to the system without input delay. The RBF neural network is employed to estimate the unknown continuous function. The controller is designed for the converted system so that the closed-loop system is bounded. According to the relation between the original system and the converted one, the state of the original system is proved to be bounded. The control scheme ensures that the closed-loop system is semi-globally uniformly ultimately bounded. © 2008 Elsevier B.V. All rights reserved.

关键词： Backstepping

来源：评论

学校读者我要写书评

暂无评论

Behaviour reasoning and tracking for mobile objects based on projection and occlusion ratios

Behaviour reasoning and tracking for mobile objects based on...

引用

2008 Chinese Conference on Pattern Recognition, CCPR 2008

作者： Lu, Hong Fei, Shumin Zhang, Tao Li, Tao Zheng, Jianyong School of Automation Southeast University Key Laboratory of Measurement and Control of Complex Systems of Engineering Nanjing 210096 China School of Automation Nanjing Institute of Technology Nanjing 211167 China School of Electrical Engineering Southeast University Nanjing 210096 China

ISBN: (纸本)9781424423163

Object states estimation and data association are main facets of multi-object tracking. Under complex situations, one object often grouped with others, or occluded by other objects or background, which can increase the difficulty in data association and behaviour reasoning, and even result in being hard to maintain track. To cope with these problems, a new behaviour reasoning and tracking method is proposed. A scene mode is built firstly simulating public transport environment. Then, Kalman filter is used to estimate the object position and bounding box. Then, the center-association based projection ratio and region-association based occlusion ratio are defined and combined to reason and classify object behaviours. Finally, an adaptive tracking scheme aiming at special behaviours (e.g. merging, and static occlusion) is proposed to validate our reasoning method. Experimental results show that the proposed method is efficient. ©2008 IEEE.

关键词： Kalman filters

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：