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International Conference on Electrical and control engineering (ICECE)

作者： Qingfeng Chen Guoli Li Qunjing Wang Rui Zhou Guanghui Fang Wei Xu College of Information Engineering Zhejiang University of Technology Hangzhou China College of Electrical Engineering and Automation Anhui University Hefei China College of Communication and Control Engineering Jiangnan University Wuxi China Wuhu Tongli Motor Company Limited Wuhu China

Based on the principle of ant colony algorithm, combined with the characteristics of three-phase asynchronous motor design, this paper applies a Multi-Objective Ant Colony Algorithm (MOACA) to three-phase asynchronous machine design, the detail process of optimization design is given. The optimization results of typical examples indicate that this method is effective.

关键词： Algorithm design and analysis Torque Stator cores Educational institutions Simulated annealing Electromagnetics

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A Modified Diamond Search algorithm

A Modified Diamond Search algorithm

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IEEE International Symposium on Information (IT) in Medicine and Education, ITME

作者： Yun Cheng Xine You Minlian Xiao Minlei Xiao Department of Communication and Control Engineering Hunan Institute of Humanities Science and Technology Loudi China Department of Electronic and Information Engineering Loudi Vocational and Technical College Loudi China Department of Computer Science and Technology Hunan Institute of Humanities Science and Technology Loudi China

DS (Diamond Search) is one of the most famous motion estimation algorithms. By analyzing the characteristics of DS, it is found that DS can be improved more efficiently. A Modified Diamond Search (MDS) algorithm is proposed in this paper. Firstly, MDS employs Small Diamond Search Pattern(SDSP) to judge if the MBD(Minimum Block Distortion) point is the initial search center. If the MBD point does not locate at the search center, Simplified Large Diamond Search Pattern(SLDSP) will be used in the next search step. If the MBD point is not within the circular area with a radius of one pixel, SLDSP will be employed continually to locate the best matching block with large motion vector until the search center become the MBD point. Finally SDSP will be adopted to refine the motion vector. Experimental results show that MDS can speed up the motion estimation process greatly under the same encoding efficiency compared to DS, especially for those video sequences with simple and slow motion vectors.

关键词： Vectors Motion estimation Diamond-like carbon Algorithm design and analysis Signal processing algorithms Encoding Prediction algorithms

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Grading test platform for Stereo Matching Algorithms

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4th International Symposium on Computational Intelligence and Industrial Applications, ISCIIA 2010

作者： Yu, Shuchun Yan, Dan Wang, Ying Yu, Xiaoyang School of Measure-Control Technology and Communication Engineering Harbin University of Science and Technology Harbin 150040 China

ISBN: (纸本)9787121113154

A variety of studies on Stereo Matching Algorithms present that the process of Stereo Matching Algorithms can be reduced to five stages. The core three stages of Stereo Matching Algorithms are the attainment of initial match cost, the generation of candidate match cost and parallax calculation. Based on this theoretical, the grading test platform for stereo matching methods was present, on the context of using vc++6.0 to realize class encapsulation in each stage. There are four kinds of image to control data stream and unified interface between classes in this platform. Testing platform was divided into three parts - area of images-displaying, area of time-displaying and area of parameter-input In the images-displaying area, different parameters can be selected to control the execution of different algorithms. In the time-displaying area, the length of time of different algorithms can be compared, meanwhile, the bottleneck to improve the real time of algorithms can be detected. Performance-checking experiments of the test platform show it is excellent;its structure is clear;its function is perfect;its operation is simple;its expansibility is good.

关键词： Grading

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Sliding mode simulation and robustaness controller

Sliding mode simulation and robustaness controller

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International Conference on engineering and Industries (ICEI)

作者： Ali Amer Ahmed R. B Ahmad Saadi A. Alobaidi Abid Yahya L. A. Hassnawi Z. G. Ali Hazim H. Tahir School of Computer and Communication Engineering University Malaysia Perlis Malaysia Head of Computer Techniques Eng. Dept. Dijlah University College Baghdad Iraq Mechatronics Department Control and Mechatronics Research Ministry of Science and Technology Baghdad Iraq

Thailand has exported longan to international market more than four decades, and China is the main international market. After Thailand and China agreed the ASEAN framework under Free Trade Agreement (FTA) since 2003, the average volume and value of longan export per year during 2004-2010, grow up to 200,000 tons and 2,737 million Baht respectively. And the average of growth rate per year of volume and value is 18%, 15%. Therefore, the objectives of the research aim to investigate the supply chain performance, collaborative supply chain of exported longan and impact factors under Thailand-China FTA. The results are based upon empirical studies, a grower and an exporter. The questionnaires developed by Q-sort technique, have been intensively employed in order to collect data. As a significant result; this paper finds exporters have high level out of eight factors, it illustrates that good competence in business for this part of supply chain as well as are well-packed and much stronger than the grower. Nevertheless, the results from regression analysis also confirm the relationship of factors in all four models. From these experimental results, both international business and agriculture business have to be emphasized in order to manage longan export.

关键词： Equations Mathematical model Switches DC motors Trajectory Dynamics

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Dynamic control approaches of spectrum sensing in multi-band cognitive radio networks

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The Journal of China Universities of Posts and Telecommunications 2010年第5期17卷 20-25页

作者： AN Chun-yan JI Hong SI Peng-bo MAO Xu College of Information and Communication Engineering Beijing University of Posts and Telecommunications Beijing 100876 China College of Electronics Information and Control Engineering Beijing University of Technology Beijing 100022 China

In this paper,the dynamic control approaches for spectrum sensing are proposed,based on the theory that prediction is synonymous with data compression in computational ***,a spectrum sensing sequence prediction scheme is proposed to reduce the spectrum sensing time and improve the throughput of secondary *** use Ziv-Lempel data compression algorithm to design the prediction scheme,where spectrum band usage history is *** addition,an iterative algorithm to find out the optimal number of spectrum bands allowed to sense is proposed,with the aim of maximizing the expected net reward of each secondary user in each time ***,extensive simulation results are shown to demonstrate the effectiveness of the proposed dynamic control approaches of spectrum sensing.

关键词： spectrum sensing sequence optimal number of spectrum bands cognitive radio networks Ziv-Lempel algorithm

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Pulse-to-pulse periodic signal sorting features and feature extraction in radar emitter pulse sequences

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Journal of Systems engineering and Electronics 2010年第3期21卷 382-389页

作者： Qiang Guo Zhenshen Qu Changhong Wang College of Information and Communication Engineering Harbin Engineering University Harbin 150001 R R. China Space Control and Inertial Technology Research Center Harbin Institute of Technology Harbin 150001 R R. China

A novel class of periodically changing features hidden in radar pulse sequence environment,named G features,is *** fractal theory and Hilbert-Huang transform,the features are extracted using changing characteristics of pulse parameters in radar emitter *** features can be applied in modern complex electronic warfare environment to address the issue of signal sorting when radar emitter pulse signal parameters severely or even completely *** results show that the proposed feature class and feature extraction method can discriminate periodically changing pulse sequence signal sorting features from radar pulse signal flow with complex variant features,therefore provide a new methodology for signal sorting.

关键词： signal sorting fractal geometry Hilbert-Huang transform(HHT) G feature extraction.

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Design of automatic positioning system based on multi-sensor for big crane-form pipeline

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4th International Symposium on Computational Intelligence and Industrial Applications, ISCIIA 2010

作者： Yu, Hong Yang, Junqing School of Measure-Control Technology and Communication Engineering Harbin Univ. of Sci. and Tech. Harbin 150040 China School of Environment and Chemical Engineering Nanchang University China

ISBN: (纸本)9787121113154

Automatic positioning system for big crane-form pipeline is mainly to achieve the precise positioning of circular opening and big crane-form pipeline, and it's also the auxiliary system of achieving automatic loading. In order to speed up the positioning and improve its precision, the system is designed to use a combined method of infrared and machine vision;infra-red is used to quickly positioning, while template matching and circle center detection are used to precise positioning. The system transmits the data of position of circular opening to PLC through serial port. And then, the big crane-form pipeline is controlled to backward, forward, lower and transport oil by PLC. The positioning of the system is precise and express.

关键词： Edge detection

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Study on the priority of passage for BRT at intersections based on multi-mode control

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Journal of Beijing Institute of technology (English Edition) 2011年第SUPPL.1期20卷 238-244页

作者： Cao, Jie Li, Xuan Hou, Liang Wang, Jin-Hua Zhang, Mo-Yi College of Electrical and Information Engineering Lanzhou University of Technology Lanzhou 730050 China Key Laboratory of Gansu Advanced Control for Industrial Processes Lanzhou 730050 China School of Computer and Communication Lanzhou University of Technology Lanzhou 730050 China

A new active traffic signal control priority strategy was proposed based on the traffic signal control and bus rapid transit(BRT) priority investigation of which combined with optimized fixed-timing, green extension-red truncation and phase skipping. Multi-modes control was used according to the study of signal controlled isolated intersection BRT priority passage control methods. Phase skipping control mode was used in the light traffic flow. While Green extension-red truncation control mode was used in the moderate traffic flow and optimized fixed-timing control mode was used in the heavy traffic flow. For based on the condition of normal traffic is not influenced, the proposed method can effectively reduce the delay time of intersection average person of BRT, per BRT delay time and BRT stopped time. © Copyright.

关键词： Traffic signals

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Detection and estimation for the traffic flow based on Kalman filter

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Journal of Beijing Institute of technology (English Edition) 2011年第SUPPL.1期20卷 271-275页

作者： Cao, Jie Xu, Gui-Hua Hou, Liang Wang, Jin-Hua Zhang, Mo-Yi Key Laboratory of Gansu Advanced Control for Industrial Processes Lanzhou 730050 China College of Electrical and Information Engineering Lanzhou University of Technology Lanzhou 730050 China School of Computer and Communication Lanzhou University of Technology Lanzhou 730050 China

Integrated method of detection and estimation for the traffic flow based on Kalman filtering was proposed by introducing the new traffic detection technology-radio frequency identification devices(RFID). With the demands of traffic information collection in CVIS (cooperative vehicle infrastructure systems), the detection technique and data processing method become more and more important in the period of the internet of things (IOT). Compared with the traditional traffic information collecting technology, the RFID technology has many advantages such as: higher accuracy, lower interference and it can achieve the real-time traffic flow data collection reliably with lower cost. Based on the test data of Qingyang road in Lanzhou, the vehicle with RFID card was simulated by VISSIM(a microscopic traffic flow simulation system developed by PTV company in Germany) and the model is verified to conduct the traffic flow detection and estimate effectively. © Copyright.

关键词： Kalman filters

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Blind multi-user detection based on BP neural network

Blind multi-user detection based on BP neural network

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International Conference on Intelligent System Design and engineering Application (ISDEA)

作者： Yamin, Wang Wang, Wei Xiangcun, Hou College of Communication and Information Engineering Xi'an University of Science and Technology Xi'an China School of Electric and Control Engineering Xi'an University of Science and Technology Xi'an China

ISBN: (纸本)9780769542126

Combat multiple access interference(MAI) and near-far effect, to some degree, BP neural network can be better suppression interference, because of its use of the least squares method, prone to local minimum. In this paper, instead of using the MMSE algorithm for least squares and the addition of a new kind of constraints, and gain iterative formula of BP neural network blind multiuser detection algorithm, to achieve the blind multi-user detection, Simulation results indicate: with constraints BP-MMSE algorithm has better convergence properties and lower bit-error ration, to some extent, Certain limits on the effective suppression of multiple access interference, also has an effective capability against near-far effect. © 2010 IEEE.

关键词： Multiple access interference

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