检索结果-内蒙古大学图书馆

2012 International Conference on Materials engineering and Automatic control, ICMEAC 2012

作者： Hu, Shuo Wu, Na Zhang, Xuguang Key Laboratory of Industrial Computer Control Engineering of Hebei Province Institute of Electrical Engineering Yanshan University Qinhuangdao 066004 China Key Laboratory of Measurement Technology and instrumentation of Hebei Province Institute of Electrical Engineering Yanshan University Qinhuangdao 066004 China

ISBN: (纸本)9783037854587

The equation for the recovered spectrum is derived in spatially modulated interferometric imagers, which takes into account the pixel photosensor width. The results show that the effect of the pixel photosensor width on the recovered spectral intensity is related to the wavenumber and the intensity of the incident spectrum, which causes the broadband spectral waveform changed, and the distortion increases with the spectral bandwidth increasing. A mathematical algorithm is given to correct the distortion, and the experimental results show this method is effective. © (2012) Trans Tech Publications, Switzerland.

关键词： Pixels

来源：评论

学校读者我要写书评

暂无评论

Hybrid neural network based on ART2 - BP information fusion control in Circulating Fluidized Bed Boiler (CFBB)

Hybrid neural network based on ART2 - BP information fusion ...

引用

5th International Conference on Advances in Brain Inspired Cognitive Systems, BICS 2012

作者： Niu, Peifeng Ma, Yunfei Li, Pengfei Zhang, Yang Li, Guoqiang Zhang, Xiangye Key Lab. of Industrial Computer Control Engineering of Hebei Province Yanshan University Qinhuangdao 066004 China National Engineering Research Center for Equipment and Technology of Cold Strip Rolling Qinhuangdao 066004 China

ISBN: (纸本)9783642315602

Circulating Fluidized Bed Boiler (CFBB) involves a kind of combustion boiler that can clean and desulfurize the coal efficiently in the combustion process. It is highly adapted to all kinds of high quality coals and low grade coals. CFB boiler has more superior performance, features and a wide range of applications than other boilers, accordingly, problems on automatic control underlined in the combustion process blocked its wide application. This is a typical thermal object, hard to control,and due to the special combustion type of CFBB that makes it a great inertia, multivariable, strong coupling, nonlinear, time-varying object. This paper designs an ART2-BP-BP Hybrid Neural Network of fusion cluster control system and completes data fusion from the data level, the feature level to the decision level. Results of simulation show that the control system in this paper is feasible and effective, in particular, the control system still has more satisfactory control effects in the case of a variety of sensor failures. © 2012 Springer-Verlag.

关键词： control systems

来源：评论

学校读者我要写书评

暂无评论

Effects and solution of electric power steering system on vehicle handling stability

引用

Journal of Computational Information Systems 2012年第1期8卷 65-72页

作者： Zang, Huaiquan Geng, Jia Key Lab of Industrial Computer Control Engineering of Hebei Province Institute of Electrical and Engineering Yanshan University Qinhuangdao 066004 China

To research the effects of electric power steering (EPS) system on vehicle handling stability and to improve it, this paper derives the expressions of road feeling and steering sensitivity, regards which as the performance targets that estimates the vehicle handling stability in addition. Finally, a dynamic compensation controller is presented for the EPS system. The simulation results show the compensated EPS system takes account of a good steering feeling and a rapid response of steering sensitivity. Its handing stability is better than the EPS vehicle which only considers the power effect. © 2012 Binary Information Press January 2012.

关键词： Steering

来源：评论

学校读者我要写书评

暂无评论

The dynamic control during mode-switches for PHEV

引用

Journal of Information and Computational Science 2012年第15期9卷 4501-4508页

作者： Zang, Huaigang Han, Yanlong Niu, Yanxia Key Lab. of Industrial Computer Control Engineering of Hebei Province National Engineering Research Center for Equipment and Technology of Cold Strip Rolling Qinhuangdao 066004 China Key Lab. of Industrial Computer Control Engineering of Hebei Province Institute of Electrical Engineering Yanshan University Qinhuangdao 066004 China

The control system of a hybrid electric vehicle assigns powers between the engine and the motor according to the vehicle's running conditions, switching the optimum driving mode. So, how to keep the torque transition swift and steady during mode-switches becomes an important aspect of hybrid electric vehicles' control problem. To solve this kind of problems, basing on the estimation of the engine's torque, this paper uses the motor's output to compensate power shortages of the vehicle caused by the engine's time-relay, and verifies its efficiency by building simulation models. The results illustrate that torque dynamic compensation algorithms can effectively guarantee the desired torque during mode-switches, and make sure swiftness and stability of torque transition. © 2012 by Binary Information Press.

关键词： Torque

来源：评论

学校读者我要写书评

暂无评论

An Improved Method for MRAC System of Indirectly Designed

An Improved Method for MRAC System of Indirectly Designed

引用

2012年控制与信息国际会议

作者： Huishan Han Yan Liu Defang Cheng Xue Gao Xingtai Polytechnic College Key Lab of Industrial Computer Control Engineering of Hebei Province Yanshan University

Based on Lyapunov stability theorem, a MRAC system was researched to solve that differential value of plant output is unknown. Meanwhile an improved design for MRAC system aimed on the factor of restricting convergence of system is given. The method not only solves the problem that makes the system can not work well as a result of the adjustable parameters, but also improves the convergence of plant. The simulation graphs have shown that the plant can follow the output of the reference model quit well

关键词： MRAC system · Lyapunov theory · Convergence

来源：评论

学校读者我要写书评

暂无评论

Bearing fault diagnosis based on multiple classifiers group of Fuzzy C Means

Bearing fault diagnosis based on multiple classifiers group ...

引用

31st Chinese control Conference, CCC 2012

作者： Xinbin, Li Xi, Sun Qiang, Chen Yun Key Lab of Industrial Computer Control Engineering of Hebei Province Yanshan University Qinhuangdao 066004 China

ISBN: (纸本)9789881563811

In this paper, Fuzzy C-Means (FCM) is adopted to constitute multiple classifiers group to classify the bearing failure and its clustering centers are optimized by Particle Swarm Optimization (PSO) algorithm with global optimization and fast convergence characteristics. Classification recognition rate obtained by FCM is integrated by fuzzy integral information fusion system to gain the final result, in which fuzzy measure also is optimized by the PSO algorithm. Simulation of identifying the bearing inner race, outer race and rolling bodies fault, the results show that the classifier improves the recognition accuracy rate of the fault diagnosis. © 2012 Chinese Assoc of Automati.

关键词： Failure analysis

来源：评论

学校读者我要写书评

暂无评论

A New Duffing-Lorenz Chaotic Algorithm and Its Application in Image Encryption

A New Duffing-Lorenz Chaotic Algorithm and Its Application i...

引用

International Conference on control engineering and Communication Technology (ICCECT)

作者： Jianming Liu Huijing Lv Key Lab of Industrial Computer Control Engineering of Hebei Province in Yanshan University Qinhuangdao P.R China

ISBN: (纸本)9781467344999

The Duffing and Lorenz chaotic algorithm proposed of today are too simple in structure and have inadequate parameters, so that they are not suitable for the encryption in cryptography. By mixing the Duffing chaotic algorithm with the Lorenz chaotic algorithm, a new six-dimensional chaotic cryptographic algorithm with a more complex structure is proposed. The Lyapunov exponent simulation shows that the new chaotic algorithm has strong chaotic features. It can be used in the image encryption after undergoing a newly designed dynamic mapping.

关键词： Heuristic algorithms Chaotic communication Algorithm design and analysis Encryption Histograms

来源：评论

学校读者我要写书评

暂无评论

The Overlayed Characteristics of Chen and Duffing Chaos and Its Circuit Realization

The Overlayed Characteristics of Chen and Duffing Chaos and ...

引用

International Conference on control engineering and Communication Technology (ICCECT)

作者： Jianming Liu Lejun Li Key Lab of Industrial Computer Control Engineering of Hebei Province in Yanshan University Qinhuangdao P.R. China

In order to analyze the overlayed characteristics of Chen and Duffing chaotic phenomenon appeared in the electric power system, a new complex chaotic model is produced by overlaying Chen chaotic model with Duffing chaotic model. The features of phase space maps, Lyapunov exponents maps and time domain of the new complex chaotic model are analysed. The Lyapunov exponent simulation results of the chaotic model show that new complex chaotic model has strong chaotic features. The results of theoretical analysis and experiment show that the new complex chaotic model belongs to a hyperchaotic model. Finally, the analog circuits are designed based on the new complex chaotic model.

关键词： Mathematical model Chaotic communication Power systems Equations Analytical models Analog circuits

来源：评论

学校读者我要写书评

暂无评论

Study on parameter selection of phase space reconstruction for chaotic time series

引用

Advances in Information Sciences and Service Sciences 2012年第2期4卷 67-77页

作者： Zhang, Wenyuan Ma, Yunfei Yang, Gang Department of Computer EandA College Hebei Normal University of Science and Technology Qinhuangdao 066004 Hebei China Key Laboratory of Hebei Province Industrial Computer Control Engineering Institute of Electrical Engineering Yanshan University Qinhuangdao 066004 Hebei Province China

Based on the principle that the selection of delay time and embedding dimension has no correlation in the process of phase space reconstruction, this paper puts forward a new method of identifying the embedding dimension by Cao Liangyue Theory (CAO Theory) after the delay time is identified by Mutual Information Function. By means of the numerical verification of a few typical examples of chaotic dynamic system, the result shows that the method can identify the valid delay time of phase space reconstruction and the best embedding dimension. In addition, a new way of identifying the chaotic signal is provided and this method can effectively reconstruct the phase space of the original system from the time series.

关键词： Time series

来源：评论

学校读者我要写书评

暂无评论

Object Tracking Method Based on SURF

引用

AASRI Procedia 2012年 3卷 351-356页

作者： Hu Shuo Wu Na Song Huajun Key Lab of Industrial Computer Control Engineering of Hebei Province Institute of Electrical Engineering Yanshan University Qinhuangdao 066004 China Key Lab of Measurement Technology & Instrumentation of Hebei Province Institute of Electrical Engineering Yanshan University Qinhuangdao 066004 China Institute of Information and Control Engineering China University of Petroleum (East China) Dongying 257061 China

An object tracking algorithm based on SURF is presented in this paper. Interest points are detected by SURF detector in reference region which is located in the first frame manually. In the following sequences, the SURF feature points are extracted in a larger window which is selected as test region. In the matching stage, we calculate the Euclidean distance between the descriptor vectors of interest points in the test image and ones in the reference image. The proposed algorithm is implemented on an embedded platform with TI's DM6446 high performance processor. The experimental results show that our system implements a real-time tracking with robustness against appearance variations, scale change, and cluttered scenes.

关键词： Object track SURF descriptor Feature detection DM6446

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：