检索结果-内蒙古大学图书馆

International Conference on control, automation and systems ( ICCAS)

作者： Xiaohan Chen Yingmin Jia Junping Du Fashan Yu The Seventh Research Division and Department of Systems and Control Beihang University BUAA Beijing China Beihang University Beijing CN Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo Henan China

This paper considers the problem of formation control for mobile robots which are subject to input constraints. The control strategy based on virtual robot tracking is proposed, which leads to a compact controller form in terms of two feedback parameters by Lyapunov method. The introduced elliptic approximation of input constraints brings much convenience to obtain suitable feedback parameters. It is show that the presented sufficient condition guarantees the existence of feasible feedback parameters. Moreover, guidelines for the selection of feedback parameters are provided with geometric analysis. Simulation results verify the effectiveness of the proposed control strategy.

关键词： Robot kinematics Lead Mobile robots Approximation methods Trajectory Educational institutions

来源：评论

学校读者我要写书评

暂无评论

Active Collision Avoidance Maneuver Design Under Constant Thrust ⋆

引用

IFAC Proceedings Volumes 2011年第1期44卷 9887-9892页

作者： Yongqiang Qi Yingmin Jia Junping Du Fashan Yu The Seventh Research Division and the Department of Systems and Control Beihang University (BUAA) Beijing 100191 China Key Laboratory of Mathematics Informatics and Behavioral Semantics (LMIB) Ministry of Education SMSS Beihang University (BUAA) Beijing 100191 China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo 454000 Henan China

Abstract In this paper, the relative position parameters of the target spacecraft are obtained by using the vision measurement and the target maneuver positions are calculated through the isochronous interpolation method. Furthermore, new switch control laws under constant thrust are designed for active collision avoidance maneuver of the chaser along a specified trajectory. The switch control laws are obtained based on the acceleration sequences and the working times of thrusters in three axes which can be respectively computed by the time series analysis method. The perturbations and fuel consumptions are addressed during the computation of the working times. The simulation results show that the constant thrust maneuver can effectively guarantee the chaser maneuvering along the specified trajectory.

关键词： Active collision avoidance maneuver Collision possibility Constant thrust Switch control laws

来源：评论

学校读者我要写书评

暂无评论

Risk-Sensitive Cubature Filtering for Jump Markov Nonlinear systems and Its Application to Land Vehicle Positioning ⋆

引用

IFAC Proceedings Volumes 2011年第1期44卷 20-25页

作者： Wenling Li Yingmin Jia Junping Du Fashan Yu The Seventh Research Division and the Department of Systems and Control Beihang University (BUAA) Beijing 100191 China Key Laboratory of Mathematics Informatics and Behavioral Semantics (LMIB) Ministry of Education SMSS Beihang University (BUAA) Beijing 100191 China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo 454000 Henan China

Abstract In this paper, a risk-sensitive filter for a class of jump Markov nonlinear systems is proposed. By using a set of weighted cubature points to approximate the intractable risk-sensitive recursions, the proposed filter could exhibit improved numerical stability with respect to the derivation of the square-root covariance, for which the unscented transform technique might halt the operations due to the presence of non-positive definite covariance. The performance of the proposed filter is illustrated through a simulation study of tracking a land vehicle with maneuvers.

关键词： Markov models Kalman filters estimation theory target tracking

来源：评论

学校读者我要写书评

暂无评论

Identification and MPC control of a circulation fluidized bed boiler using an LPV model

Identification and MPC control of a circulation fluidized be...

引用

作者： Huang, Jiangyin Ji, Guoli Zhu, Yucai Lin, Wei Department of Automation Xiamen University Xiamen 361005 China Control Systems Faculty of Electrical Engineering Eindhoven University of Technology Netherlands

ISBN: (纸本)9783902661692

This work studies the identification and control of circulation fluidized bed (CFB) boilers. The CFB boiler under investigation shows strong nonlinearity due to big changes of steam load. A linear parameter varying (LPV) model is used to represent the process dynamics and used in control. The steam flow is used as the working-point variable (scheduling variable) of LPV model. Multivariable plant tests were carried out and a LPV model and a linear model were identified. The identification results of the industrial CFB boiler show that the LPV model has much higher accuracy than the linear model. The simulation studies for the MPC control of the CFB boiler have been performed using both the LPV model and the linear model. The simulation results show that the MPC using the LPV model performs better than the MPC using the linear model. © 2009 IFAC.

关键词： Fluidized beds

来源：评论

学校读者我要写书评

暂无评论

Adaptive Iterative Learning control for Uncertain Delay systems Based on Model Matching Technique

Adaptive Iterative Learning Control for Uncertain Delay Syst...

引用

2011 American control Conference (ACC)

作者： Haixia Su Yingmin Jia Junping Du Fashan Yu Seventh Research Division and the Department of Systems and Control Beihang University Beijing China Key Laboratory of Mathematics Informatics and Behavioral Semantics (LMIB) Ministry of Education SMSS Beihang University Beijing China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo Henan China

In this paper, an adaptive iterative learning control (ILC) scheme is proposed for trajectory tracking of uncertain delay systems based on model matching technique. The reference model is a delay system operating over in a finite time interval. An iterative model matching controller is designed and an iteration domain adaptive law is chosen to estimate the unknown parameters. It shows that the model matching technique can be applied in a straightforward method to ILC problem. A simulation example is included to illustrate the designed scheme.

关键词： Adaptation models Polynomials Adaptive systems Delay effects Delay systems

来源：评论

学校读者我要写书评

暂无评论

Gaussian Mixture PHD Smoother for Jump Markov Models in Multiple Maneuvering Targets Tracking

Gaussian Mixture PHD Smoother for Jump Markov Models in Mult...

引用

2011 American control Conference (ACC)

作者： Wenling Li Yingmin Jia Junping Du Fashan Yu Seventh Research Division and the Department of Systems and Control Beihang University Beijing China Key Laboratory of Mathematics Informatics and Behavioral Semantics (LMIB) Ministry of Education SMSS Beihang University Beijing China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo Henan China

This paper presents a Gaussian mixture probability hypothesis density (GM-PHD) smoother for tracking multiple maneuvering targets that follow jump Markov models. Unlike the generalization of the multiple model GM-PHD filters, our aim is to approximate the dynamics of the linear Gaussian jump Markov system (LGJMS) by a best-fitting Gaussian (BFG) distribution so that the GM-PHD smoother can be carried out with respect to an approximated linear Gaussian system. Our approach is inspired by the recognition that the BFG approximation provides an accurate performance measure for the LGJMS. Furthermore, the multiple model estimation is avoided and less computational cost is required. The effectiveness of the proposed smoother is verified with a numerical simulation.

关键词： Target tracking Approximation methods Markov processes Covariance matrix Smoothing methods Radar tracking Computational efficiency

来源：评论

学校读者我要写书评

暂无评论

Microcontroller-based engineering education innovation

Microcontroller-based engineering education innovation

引用

2010 International Conference on Educational and Information Technology, ICEIT 2010

作者： Ni, Jianyun Luo, Jing Tianjin Key Laboratory for Control Theory and Applications in Complicated Systems School of Electrical Engineering Tianjin University of Technology Tianjin 300384 China College of Electrical Engineering and Automation Tianjin Polytechnic University Tianjin 300160 China

ISBN: (纸本)9781424480340

The goal of innovative education in engineering field is to cultivate excellent engineering talents with high quality, innovative spirit, innovative ability and innovative quality. With the wide application of microcontroller technology, innovative education in engineering field based on microcontroller will be agility, convenience and effectively. In order to adapt to the needs of engineering education innovation, a novel engineering education innovation scheme by microcontroller technology has been proposed, including education of microcontroller course, experimental course in class, engineering practical extracurricular and science competition of college students. The proposed scheme combine curriculum with practice, by making full use of teaching and self-study advantages and bypassing spoon-speed disadvantages. By applying the scheme, engineering education innovation using microcontroller can be carried out with high efficiency, high quality, and individualization. College students will achieve innovative ability, practice ability and competition ability of employment by the scheme. Practice has demonstrated that the scheme is applicable. © 2010 IEEE.

关键词： Microcontrollers

来源：评论

学校读者我要写书评

暂无评论

Multi-objective minimum entropy controller design for stochastic processes

Multi-objective minimum entropy controller design for stocha...

引用

作者： Afshar, Puya Nobakhti, Amin Wang, Hong Chai, Tianyou Control Systems Centre University of Manchester Manchester United Kingdom Electrical Engineering Sharif University of Technology Tehran Iran Centre of Automation Northeastern University Shenyang China

ISBN: (纸本)9781424474264

Minimum variance control is an established method in control of systems corrupted by noise. In these cases, as it is not possible to directly control the actual value of the system variables, one aims to reduce the variations instead. However, when the system noises are non-Gaussian, this approach fails because non-Gaussian noise cannot be characterised by simple measures such as variance. In these cases, the Entropy is proposed as a generalisation of the variance measure and the control objective becomes that of minimising the Entropy. Previously a limited form of this problem has been solved using first order Newtonian methods. In this paper, the control objective is first expanded to also include an error term related to the closed loop tracking performance, and the combined problem is then solved using a fast global optimisation search algorithm. The effectiveness of the approach is demonstrated through a case study based on a first principle model of a nonlinear heat exchanger. © 2010 AACC.

关键词： Stochastic systems

来源：评论

学校读者我要写书评

暂无评论

Optimal control in reducing rotor vibrations 10

Optimal control in reducing rotor vibrations

引用

10th International Conference on Motion and Vibration control, MOVIC 2010

作者： Kiviluoto, Sami Wu, Ying Zenger, Kai Gao, Xiao-Zhi Department of Automation and Systems Technology Aalto University Espoo Finland Department of Control Science and Engineering Harbin Institute of Technology Harbin China Department of Electrical Engineering Aalto University Espoo Finland

This paper presents three different LQ controllers, which are used to attenuate rotor vibrations in an electrical motor. The controllers are compared in performance and control effort. A dynamic way of solving the related Riccati equation is discussed to overcome the issue of finding the solution, when the model including disturbance dynamics is not stabilizable. One LQ controller is calculated utilizing particle swarm optimization, and the benefits of doing so are evaluated with respect to the cases when no optimization was used in tuning the controller. Copyright © 2010 by the Japan Society of Mechanical Engineers.

关键词： controllers

来源：评论

学校读者我要写书评

暂无评论

A cultural Particle Swarm Optimization algorithm

A cultural Particle Swarm Optimization algorithm

引用

International Conference on Natural Computation

作者： Wu, Ying Gao, Xiao-Zhi Huang, Xian-Lin Zenger, Kai Department of Control Theory and Engineering Harbin Institute of Technology Harbin China Department of Electrical Engineering Aalto University Espoo Finland Department of Automation and Systems Technology Aalto University Espoo Finland

ISBN: (纸本)9781424459612

A new culture-based Particle Swarm Optimization (PSO) with mutation, CPSOM, is proposed in this paper to improve the overall optimization performance of the original PSO and combat with the well-known premature problem. In the CPSOM, the Evolutionary Programming (EP) mutation operator is applied to a proportion of the particles in the population space based on the influence function. The mutation operation is directed by the knowledge stored in the belief space, and the mutation proportion can vary linearly with the growth of the swarm generations. Our CPSOM is investigated using ten high-dimension and multi-peak functions. Numerical simulation results demonstrate that it can indeed outperform both the original PSO and EP. © 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

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：