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IEEE Annual Conference on Decision and control

作者： Xiaojie Su Peng Shi Ligang Wu Hamid Reza Karimi Rongni Yang Space Control and Inertial Technology Research Center Harbin Institute of Technology Department of Computing and Mathematical Sciences University of Glamorgan Department of Engineering Faculty of Engineering and Science University of Agder School of Control Science and Engineering Shandong University

ISBN: (纸本)9781467320658

This paper is focused on the problem of H_∞ filtering for a class of discrete-time T-S fuzzy time-varying delay systems. Our interest is how to design full- and reduced-order filters that guarantee the filtering error system to be asymptotically stable with a prescribed H_∞ performance. Sufficient conditions for the obtained filtering error system are proposed by applying an input-output approach and a two-term approximation method, which is employed to approximate the time-varying delay. The corresponding full and reduced-order filter design is cast into a convex optimization problem, which can be efficiently solved by standard numerical algorithms.

关键词： error system reduced order filters Fuzzy systems time varying discrete-time Filtration filter design

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Electrothermal effect on the electrical resistivity of single carbon nanocoils

Electrothermal effect on the electrical resistivity of singl...

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International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale (3M-NANO)

作者： Ming-Dao Wu Cheng-Chun Huang Wen-Pin Shih Sergej Fatikow Department of Mechanical Engineering National Taiwan University Taipei Taiwan Division of Microrobotics and Control Engineering Department of Computing Science University of Oldenburg Oldenburg Germany

We electrothermally determined the internal electrical resistivity of a single carbon nanocoil (CNC) which was assembled on the AFM tip. A heat-transfer modeling which considered the Joule's heat was employed to extract the electrical resistivity. The current and resistance of the loop circuits were applied in the calculation in which the thermal measurement was not required. During the electrical measurement, the overall resistance of the heating loop depended on the current variation and decreased abruptly at the beginning of the measurement. It was suggested that the contact resistances between the CNC and metal electrodes were eliminated due to the shortened difference of the work functions between the two materials. The developed electrothermal model agreed well with the experiment at steady state and gave the CNC resistivity of 1.64*10 -4 ~8.81*10 -4 Ω-m. This result confirmed the amorphous phase of the synthesized CNC.

关键词： Computer numerical control Resistance Temperature measurement Electrical resistance measurement Carbon Current measurement

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Association analysis between symptoms (signs) and syndromes of chronic gastritis based on associated density

Association analysis between symptoms (signs) and syndromes ...

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2012 International Conference on System Simulation, ICUSS 2012

作者： Liu, G.P. Li, G.Z. Yan, S.X. Li, F.F. Fu, J.J. Zhen, R.W. Laboratory of Information Access and Synthesis of TCM Four Diagnosis Basic Medical College Shanghai University of Traditional Chinese Medicine Shanghai 201203 China Key Laboratory of Embedded System and Service Computing Department of Control Science and Engineering Tongji University Shanghai 201804 China

ISBN: (纸本)9781849195386

Purpose: The analysis of syndrome distribution and the association between symptom((signs))-syndrome in chronic gastritis (CG) patients can provide references for research about Traditional Chinese Medicine (TCM) diagnosis and treatment of CG. Method: This paper applies the investigation method of clinical epidemiology, adopts probability statistics method and comes up with the concept of associated density to conduct association analysis of symptom-syndrome. Result: In the distribution of syndromes patients who have a single syndrome occupy 64.7% of the whole sample;some symptoms have been selected out, of which the associated density is more than 0.6. Conclusion: Through this comparison of the values, we found the obvious one-way relationship of the symptoms (signs) and syndromes, and the results are in line with traditional Chinese medicine theory. This method effectively complements and supports traditional Chinese medicine point of view and hypothesis.

关键词： Diagnosis

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Fish robot modeling and simulation: Fish-tail and rigid-body motion

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International Journal of Advancements in computing Technology 2012年第18期4卷 105-114页

作者： Suebsaiprom, Pichet Lin, Chun-Liang Saimek, Saroj Bioinformatic Computing and Control Laboratory Department of Electrical Engineering National Chung Hsing University Taichung Taiwan Department of Mechanical Engineering King Mongkut's University of Technology Thonburi Bangkok Thailand

Derivation of the mathematical model for a robot fish considering forward motion and yaw angle kinematics is presented. This model has included details of the hydrodynamic force by considering the condition of fish swimming underwater which wasn't revealed in the previous literature. The nonlinear dynamical model in Carangiform locomotion type is derived by use of Lagrange's equation, which concerning about 4 links of fish robot equivalent model similar to the 4-link planar robot manipulator. Computer simulations have conducted both in terms of dynamic response and animation motion of the fish robot swimming. These results indicate feasibility of the model for the designed robot. The tracking simulation by means of simplify proportional controller reveals the feasibility of path-tracking control for the fish robot while swimming. The model derived can be served as a basis for further investigation of compatible control design for sophisticated objectives.

关键词： Nonlinear equations

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Bearing-Only Tracking with a Mixture of von Mises Distributions

Bearing-Only Tracking with a Mixture of von Mises Distributi...

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IEEE/RSJ International Conference on Intelligent Robotics and Systems

作者： Ivan Markovi? Ivan Petrovi? I. Markovi? and I. Petrovi? are with University of Zagreb Faculty of Electrical Engineering and Computing Department of Control and Computer Engineering HR-10000 Zagreb Croatia

ISBN: (纸本)9781467317375

This paper presents a novel method for Bayesian bearing-only tracking. Unlike the classical approaches, which involve using Gaussian distribution, the tracking procedure is completely covered with the von Mises distribution, including state representation, transitional probability, and measurement model, since it captures and models well the peculiarities of directional data. The state is represented with a mixture of von Mises distributions, thus offering advantages of being able to model multimodal distributions, handle nonlinear state transition and measurement models, and to completely cover the whole state space, all with a modest number of parameters. The tracking procedure is solved by convolution with a von Mises distribution (prediction step) and multiplication with a mixture representing the measurement model (update step). Since in the update step the number of mixture components grows exponentially, a method is presented for component reduction of a von Mises mixture. Furthermore, a closed-form solution is derived for quadratic Rényi entropy of the von Mises mixture. The algorithm is tested and compared to a particle filter representation in a speaker tracking scenario on a synthetic data set and real-world recordings. The results supported the proposed approach and showed similar performance to the particle filter.

关键词： Mises Distributions to completely von Mises mixture

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An application of circumscribed circle filter in the multi-stencils fast marching method 12

An application of circumscribed circle filter in the multi-s...

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27th Annual ACM Symposium on Applied computing, SAC 2012

作者： Liu, Hong Hung, Chih-Cheng Hu, Huaifei Yu, Mali Song, Enmin School of Computer Science Huazhong University of Science and Technology Wuhan China Key Laboratory of Education Ministry for Image Processing and Intelligent Control Wuhan Hubei 430074 China School of Computing and Software Engineering Southern Polytechnic State University Marietta GA 30060 United States

ISBN: (纸本)9781450308571

We develop an effective method for improving the segmentation result based on the Multi-Stencils Fast Marching method (MSFM). In MSFM, the gradient information of the image plays a vital role for calculating edges. It is straightforward to obtain the edge of good quality images;however, MSFM may not have robust edge maps available for images with spurious edges. Thus, a special multi-direction circumscribed circle filter is proposed to calculate the image gradient information which is then used in the MSFM. Using the new gradient information, better image contours can be obtained with MSFM. The size of the radius used in our circle filter is constant even the standard deviation of zero-mean Gaussian noise changes while the parameters of mean filter and Canny filter for gradient computation have to be correctly selected according to different noisy images. Our proposed method shows that it is effective through the experiments of image segmentation. © 2012 ACM.

关键词： Image segmentation

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Astronomical systems analysis and object detection

Astronomical systems analysis and object detection

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International Conference on Radioelektronika

作者： Frantisek Mojzis Jaromir Kukal Jan Svihlik Department of Computing and Control Engineering Institute of Chemical Technology in Prague Prague Czech Republic Department of Software Engineering In Economics CTU-Prague Praha Czech Republic

This paper is devoted to the astronomical systems analysis and object detection in images acquired by these systems. It brings general overview of object detection methods used in digital image processing and focuses on different approach via. mathematical statistics. Astronomical systems analysis introduces statistical test for Poisson distribution and False Discovery Rate used in multiple hypothesis testing. Mentioned methods are firstly used for analysis of the dark frames. These results are then used for the purpose of object detection. Proposed methods are applied to the model data and then to the real images acquired by MAIA (Meteor Automatic Imager and Analyzer) system.

关键词： Object detection Charge coupled devices Data models Temperature sensors Digital images Testing Transforms

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An entropy approach to filtering for networked control systems

An entropy approach to filtering for networked control syste...

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作者： Zhang, Jianhua Du, Lilong Wang, Aiping Wang, Hong School of Control and Computer Engineering North China Electric Power University Beijing 102206 China Institute of Computing Sciences Anhui University Hefei China Control Systems Centre University of Manchester Manchester M601QD United Kingdom Key Laboratory of Integrated Automation of Process Industry Ministry of Education and Research Center of Automation Northeastern University Shenyang China

This paper is concerned with minimum error entropy filter design for non-linear Networked control Systems (NCSs) with multiple-packet transmission mechanism. Since the error of the filter in NCSs is generally non-Gaussian, the filter is designed under the information theoretic learning frame. The convergent condition of the proposed filter is established. A simulation example shows that the proposed approach is feasible and effective. Copyright © 2012 Inderscience Enterprises Ltd.

关键词： Entropy

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A recursive local linear estimator for identification of nonlinear ARX systems

A recursive local linear estimator for identification of non...

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Universite Libre de Bruxelles

作者： Zhao, Wen-Xiao Zheng, Wei Xing Bai, Er-Wei Key Laboratory of Systems and Control Academy of Mathematics and Systems Science CAS Beijing China National Center for Mathematics and Interdisciplinary Sciences CAS Beijing China School of Computing Engineering and Mathematics University of Western Sydney Penrith NSW 2751 Australia Department of Electrical and Computer Engineering University of Iowa Iowa City IA 52242 United States

In this work, we propose a recursive local linear estimator (RLLE) for identification of nonlinear autoregressive systems with exogenous inputs, along with an analysis of its strong consistency and asymptotical mean s... 详细信息

ISBN: (纸本)9783902823069

关键词： Mean square error

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Common multidisciplinary prototypes of remote laboratories in the educational curricula of electrical & computer engineering

Common multidisciplinary prototypes of remote laboratories i...

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119th ASEE Annual Conference and Exposition

作者： Tawfik, Mohamed Sancristobal, Elio Martin, Sergio Gil, Rosario Pesquera, Alberto Edmundo, Tovar Llamas-Nistal, Martin Orueta, Gabriel Diaz Peire, Juan Castro, Manuel Madrid Spain Electrical Electronic and Control Department Spain Electrical and Computer Engineering Department Industrial Engineering School Spanish University for Distance Education Spain Spain Quality and Strategic Planning in the Computing School Universidad Politcnica de Madrid Spain School of Telecommunication Engineers University of Vigo Spain Universidad Nacional de Educacion A Distancia Spain

ISBN: (纸本)9780878232413

On recent years, the educational paradigm of electrical and computer engineering has undergone a significant transformation with the advent and the exploitation of computer and communication technologies. Such transformation was necessitated in order to harmonize the learning process with the needs of the daily life. As a result, E-learning has been adopted and has added two major aspects to the learning process: 1) Interactivity;owing to the integration of simulation and multimedia technologies. 2) Ubiquity;owing to the integration of synchronous and asynchronous communication tools, and remote laboratories. Thereby, thanks to E-learning students incentives toward learning have increased. There is no doubt that practical sessions have an intrinsic role in electrical and computer engineering education;they augment the learning outcomes by strengthening the understanding of scientific concepts and theories. However, cost and administration burdens have hindered the adoption of practical sessions in engineering education until the appearance of remote laboratories. Remote laboratories have tackled these concerns by bringing practical sessions online and providing workbenches unconstrained by neither geographical nor time considerations. For these reasons, remote laboratories have proliferated among many universities and institutes around the world to be adopted in most of the disciplines of electrical and computer engineering curricula. A study carried out by the authors deduced that most of the developed remote laboratories around the world are based on common prototypes that are subsets of a common architecture, which is going to be the main topic of this paper. The paper reports on the common prototypes of today's remote laboratories for electrical and computer engineering education and addresses the most outstanding developments for the multidisciplinary applications that are based on such prototypes. These applications encompass embedded systems (e.g. Programmabl

关键词： engineering education

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