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2012 3rd IEEE/IET International Conference on Audio, Language and Image Processing, ICALIP 2012

作者： Fang, Liu Biao, Yang Li, Kai Gang School of Electronic Information and Control Engineering Beijing University of Technology Beijing 100124 China Department of Automation North China University of Technology Beijing 100041 China

ISBN: (纸本)9781467301718

Evolutionary programming(EP) has been applied with success to many numerical and combinatorial optimization problems in recent years. EP has rather slow convergence rates, however, on some function optimization problems. In this paper the Bi-Group evolutionary programming is proposed to overcome the premature convergence. There are two groups in the Bi-Group evolutionary programming. The global group is responsible for searching the whole space. The local group is responsible for searching the local part in detail. The cooperation and specialization between different groups are considered during the algorithm design. The experimental results show the Bi-Group evolutionary programming is efficient in image processing. © 2012 IEEE.

关键词： Evolutionary algorithms

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A holistic protection based on network access control

A holistic protection based on network access control

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2nd International Conference on Intelligent systems Design and engineering Applications, ISDEA 2012

作者： Fan, Yanfang Li, Dong Xie, Yongqiang Xu, Bo Wang, Haifei Department of Electronic Engineering Tsinghua University Beijing 100094 China Institute of Command Automation PLA University of Science and Technology Jiangsu 210007 China Network Research Center Insitute of China Electronic Equipment System Engineering Company 100141 Beijing China

ISBN: (纸本)9780769546087

With the heterogeneous threats of network ongoing, the problems of network security become more and more intractable, besides, the compatibility issues of security protection-equipments are emerging in endlessly. Thus, the unified treat management has been a research hotpot currently. In this paper, based on analyzing the status quo of UTM (unified treat management), as well as the performance detects of related equipments, we present the NAC-UTM, a holistic protection scheme of intranet, which combines UTM with technology of network access control. The emphasis of our research is to illustrate the operating principle of UTM-NAC scheme, and then we verify the superiority of this scheme with a simplified experiment. The test result indicates that our solution could greatly promote performance of UTM equipments. © 2012 IEEE.

关键词： Network security

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Data fusion for target tracking in wireless sensor networks using quantized innovations and Kalman filtering

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Science China(Information Sciences) 2012年第3期55卷 530-544页

作者： XU Jian1,2 , LI JianXun1,2 & XU Sheng3 1department of automation, Science and Technology on Avionics Integration Laboratory, Shanghai Jiao Tong University, Shanghai 200240, China 2department of automation, system control and Information Processing, Ministry of Education of China, Shanghai Jiao Tong University, Shanghai 200240, China 3School of Mechanical engineering, Shanghai Jiao Tong University, Shanghai 200240, China 1. Department of Automation Science and Technology on Avionics Integration Laboratory Shanghai Jiao Tong University Shanghai 200240 China2. Department of Automation System Control and Information Processing Ministry of Education of China Shanghai Jiao Tong University Shanghai 200240 China3. School of Mechanical Engineering Shanghai Jiao Tong University Shanghai 200240 China

A novel networked data-fusion method is developed for the target tracking in wireless sensor networks (WSNs). Specifically, this paper investigates data fusion scheme under the communication constraint between the fusion center and each sensor. Such a message constraint is motivated by the bandwidth limitation of the communication links, fusion center, and by the limited power budget of local sensors. In the proposed scheme, each sensor collects one noise-corrupted sample, performs a quantizing operation, and transmits quantized message to the fusion center. Then the fusion center combines the received quantized messages to produce a final estimate. The novel data-fusion method is based on the quantized measurement innovations and decentralized Kalman filtering (DKF) with feedback. For the proposed algorithm, the performance analysis of the estimation precision is provided. Finally, Monte Carlo simulations show the effectiveness of the proposed scheme.

关键词： data fusion target tracking limited bandwidth quantized innovation Kalman filtering

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Optimal control of linear discrete-time systems with multiplicative noises

Optimal control of linear discrete-time systems with multipl...

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31st Chinese control Conference, CCC 2012

作者： Guangming, Liu Weizhou, Su Jie, Chen Autonomous System and Networked Control Lab South China University of Technology Guangzhou 510640 China Electronic Engineering Department City University of Hong Kong Hong Kong

ISBN: (纸本)9789881563811

This paper studies mean-square stabilization and optimal control problems via state feedback for linear discrete-time systems with state and control multiplicative noises. We first show that in general the state feedback stabilization problem in mean-square sense amounts to solving a generalized eigenvalue problem(GEVP). Next, we pose the H2 optimal control problem equivalent to an optimal mean-square stabilization problem. As a consequence, both the mean-square stabilization and the H2 optimal control problems can be solved efficiently as one of generalized eigenvalue problems, for which computational algorithms are readily available. The optimal state feedback in turn can be designed by solving a modified algebraic Riccati equation (MARE). © 2012 Chinese Assoc of Automati.

关键词： State feedback

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Color temperature compensation for LED lighting illumination

Color temperature compensation for LED lighting illumination

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2012 International Conference on Machine Learning and Cybernetics, ICMLC 2012

作者： Chou, Chia-Te Lee, Chia-Liang Juan, Chang-Jung Lin, Tien-Lu Tsai, Ming-Jong Graduate Institute of Automation and Control National Taiwan University of Science and Technology Taipei 106 Taiwan Department of Electronic Engineering Hua-Hsia Institute of Technology New Taipei Taiwan

ISBN: (纸本)9781467314855

The paper presents both chrominance uniformity and color temperature compensation for RGB LED lighting illumination. A self-developed color optical sensing module and an integrating sphere were used to measure the color characteristics of LED pixels. Firstly, the transfer coefficients for each color measurement were calibrated. A calibrated sensing module was applied to inspect the color characteristics of 3 in 1 color LED modules. With the required target color chrominance or color temperature, the compensated RGB lighting ratio can be derived according to the mixed light formula associated with original RGB measurement. The experimental results from the 4x4 LEDs show that the deviation of white chrominance by using a 3 in 1 LED module is about 0.1001 before compensation, but the average color deviation is reduced to 0.002 and the average color temperature deviation is less than 71K after compensation by using the proposed method. © 2012 IEEE.

关键词： Temperature measurement

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A study on ARMA model based corporate equipment maintenance expenditure prediction

A study on ARMA model based corporate equipment maintenance ...

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2012 IEEE International Conference on Service Operations and Logistics, and Informatics, SOLI 2012

作者： Lv, Minhui Zhao, Hongxia Shchool of Management Department of Equipment Economics and Management Naval University of Engineering Wuhan China State Key Laboratory of Management and Control for Complex System Institute of Automation Chinese Academy of Sciences Beijing China

ISBN: (纸本)9781467324007

This paper focuses on macro prediction of corporate equipment maintenance expenditure, adopts ARMA to establish the model for historical data of corporate equipment maintenance expenditure and makes demand analysis and prediction so as to provide a scientific basis for decision makers in equipment maintenance expenditure prediction, and they can control the overall budget for equipment maintenance. Based on analysis and compassion of actual model calculation results, the paper reaches the conclusion that ARMA model enjoys an advantage over traditional predicting models in corporate equipment maintenance prediction. © 2012 IEEE.

关键词： Forecasting

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The extended co-learning framework for robust object tracking

The extended co-learning framework for robust object trackin...

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2012 13th IEEE International Conference on Multimedia and Expo, ICME 2012

作者： Gong, Chen Liu, Yang Li, Tianyu Yang, Jie He, Xiangjian Department of Automation Shanghai Jiao Tong University Key Laboratory of System Control and Information Processing Shanghai China Faculty of Engineering and Information Technology University of Technology Sydney PO Box 123 Sydney NSW Australia

ISBN: (纸本)9781467316590

Recently, object tracking has been widely studied as a binary classification problem. Semi-supervised learning is particularly suitable for improving classification accuracy when large quantities of unlabeled samples are generated (just like tracking procedure). The purpose of this paper is to fulfill robust and stable tracking by using collaborative learning, which belongs to the scope of semi-supervised learning, among three classifiers. Different from [1], random fern classifier is incorporated to deal with 2bitBP feature newly added and certain constraints are specially implemented in our framework. Besides, the way for selecting positive samples is also altered by us in order to achieve more stable tracking. Algorithm proposed in this paper is validated by tracking pedestrian and cup under occlusion. Experiments and comparison show that our algorithm can avoid drifting problem to some degree and make tracking result more robust and adaptive. © 2012 IEEE.

关键词： Supervised learning

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On-line and dynamic estimation of Rician fading channels in GSM-R networks

On-line and dynamic estimation of Rician fading channels in ...

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International Conference on Wireless Communications and Signal Processing (WCSP)

作者： Yongsen Ma Pengyuan Du Xiaofeng Mao Chengnian Long Department of Automation Key Laboratory of System Control and Information Processing Ministry of Education Shanghai Jiaotong University China Department of Electronic Engineering Shanghai Jiaotong University China

ISBN: (纸本)9781467358309

The on-line and dynamic estimation algorithm for Rician fading channels in GSM-R networks is proposed, which is an expansion of local mean power estimation of Rayleigh fading channels. The proper length of statistical interval and required number of averaging samples are determined which are adaptive to different propagation environments. It takes advantage of the sampling signals and Rician fading parameters of last estimation to reduce measurement overhead. The performance of this method was evaluated by measurement experiment along the Beijing-Shanghai high-speed railway. When it is NLOS propagation, the required sampling intervals can be increased from 1.1λ in Lee's method to 3.7λ of the on-line and dynamic algorithm. And the sampling interval can be set up to 12λ although the length of statistical interval decreases when there is LOS signal, which can reduce the measurement overhead significantly. The algorithm can be applied in coverage assessment with lower measurement overhead, and in dynamic and adaptive allocation of wireless resource.

关键词： Dynamic Estimation Rician Rician fading channels Rician fading IN-LINE dynamic Dynamic algorithms sampling interval Self tuning

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Fairness-guaranteed pricing and power allocation with a friendly jammer against eavesdropping

Fairness-guaranteed pricing and power allocation with a frie...

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International Conference on Wireless Communications and Signal Processing (WCSP)

作者： Jianting Yue Bo Yang Xinping Guan Department of Electronic Engineering Key Laboratory of System Control and Information Processing Ministry of Education Shanghai Jiaotong University Shanghai China Department of Automation Key Laboratory of System Control and Information Processing Ministry of Education Shanghai Jiaotong University Shanghai China

In wireless communication, jamming is a promising solution to provide improvement in secrecy rate, especially when security requirement is difficult to satisfy in realistic environment. Users could pay the friendly jammer for some interference to the eavesdropper and consequently improve the secrecy rate of their own, while the jammer wants to get maximum revenue within its capability. Thereby a Stackelberg game is introduced. Fairness also deserves particular attention, as unfair allocation of the limited resource deteriorates the performance of whole network. In this paper, we discuss a network with one jammer and several users, where they participate in the game and reach equilibrium ultimately. We utilize Kalai-Smorodinsky bargaining solution to guarantee fairness among users, making them balance their utility so as to make the best of the interference from the jammer. Moreover, we propose implementation of algorithm and demonstrate the performance.

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Second order sliding mode controller for longitudinal wheel slip control

Second order sliding mode controller for longitudinal wheel ...

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2012 IEEE 8th International Colloquium on Signal Processing and Its Applications, CSPA 2012

作者： Hamzah, Norhazimi Md Sam, Yahaya Selamat, Hazlina Aripin, M. Khairi Ghazali, Rozaimi Faculty of Electrical Engineering Universiti Teknologi MARA Pulau Pinang Malaysia Faculty of Electrical Engineering Universiti Teknologi Malaysia Johor Malaysia Control Instrumentation and Automation Department Faculty of Electrical Engineering UTeM Melaka Malaysia Faculty of Electrical and Electronic Engineering Universiti Tun Hussein Onn Malaysia Johor Malaysia

ISBN: (纸本)9781467309615

This paper investigates the longitudinal wheel slip tracking control approach for ground vehicle. A mathematical model of a quarter vehicle undergoing a straight-line braking maneuver is used as the control model. Second order sliding mode (SOSM) control approach using super-twisting technique is proposed to manipulate the braking torque to control the wheel slip. The effectiveness of the SOSM is compared to the conventional sliding mode in the simulations of emergency straight line braking in Simulink. With the SOSM, the chattering phenomenon is eliminated, giving a smooth tracking trajectory and lower slip error and control effort. © 2012 IEEE.

关键词： Sliding mode control

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