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Special issue on approximate dynamic programming and reinforcement learning

Journal of control Theory and Applications 2011年第3期9卷 309-309页

作者： Ferrari, Silvia Sarangapani, Jagannathan Lewis, Frank L. Department of Mechanical Engineering and Materials Science Duke University Box 90300 Durham NC 27708-0005 United States Department of Electrical and Computer Engineering University of Missouri-Rolla Missouri-Rolla MO 65401 United States Automation and Robotics Research Institute The University of Texas at Arlington 7300 Jack Newell Blvd. S Ft. Worth TX 76118-7115 United States

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Wavelet autoregressive forecasting of climatic parameters for photovoltaic systems

Wavelet autoregressive forecasting of climatic parameters fo...

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IEEE SSD International Multi-Conference on Systems, Signals and Devices

作者： Chokri Ben Salah Anouar Ben Mabrouk Mohamed Ouali Research Unit on Intelligent Control Optimization design & optimization of complex Systems (ICOS) Department of Electrical Engineering National School of Engineers of Sfax Sfax Tunisia Department of Computer Sciences Higher Institute for Applied Sciences and Technology HIAST Sousse Tunisia Department of Electrical Engineering National School of Engineers of Sfax Sfax Tunisia

ISBN: (纸本)9781457704130

In this paper wavelet decomposition is combined with autoregressive models to analyze and predict climate time series such as solar radiation and photovoltaic cell temperature. The method is tested on climate parameters for analysis, and solar radiation and cell temperature for prediction. The work effectiveness is evaluated by the prediction of the electric energy produced by a 100 Wp photovoltaic panel. Finally, the performance of predictor is measured by standardized error.

关键词： Mathematical model Temperature measurement Time series analysis Predictive models Solar radiation Wavelet analysis Photovoltaic systems

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Formation control of mobile robots with input constraints: An elliptic approximation approach

Formation control of mobile robots with input constraints: A...

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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

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PARTICLE SWARM OPTIMIZATION（PSO）OF POWER ALLOCATION IN COGNITIVE RADIO SYSTEMS WITH INTERFERENCE CONSTRAINTS

PARTICLE SWARM OPTIMIZATION（PSO）OF POWER ALLOCATION IN COG...

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2011 4th IEEE International Conference on Broadband Network and Multimedia Technology

作者： Saeed Motiian Mohammad Aghababaie Hamid Soltanian-Zadeh Control and Intelligent Processing Center of Excellence School of Electrical and Computer Engineering Colleague of EngineeringUniversity of TehranTehran 14399-57131Iran School of Cognitive Sciences Institute for Research in Fundamental Sciences(IPM)Tehran 19548-56316 Iran Image Analysis Laboratory Radiology DepartmentHenry Ford HospitalDetroitMichigan 48202USA

Cognitive radio is used for enhancement of spectrum *** many works have been accomplished on the power allocation of cognitive radio,limited efforts have considered evolutionary *** this paper,we study this problem in the cognitive radio networks where interference constraints are defined for protection of quality of service（QoS）for both primary and secondary *** defined as functions of the signal-to-interference-plus-noise ratio（SINR） are matched for each secondary user which meets Nash’s *** general,the region of utilities that meets the constraints is *** is possible to make simplifications,generate a convex region,and then use common convex optimization approaches to obtain a ***,Particle Swarm Optimization（PSO）does not need such simplifications and thus its results are superior to those of the convex optimization *** is an evolutionary algorithm based on social intelligence,utilized in many optimization *** is a global optimizations algorithm that does not require the objective function be differentiable as required in classic optimization methods.

关键词： Cognitive radio Power allocation Particle Swarm Optimization（PSO）.

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Design and modeling of integrated Hall-effect sensor based on-line thickness measurement device for incremental sheet forming processes

Design and modeling of integrated Hall-effect sensor based o...

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IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)

作者： Imre Paniti Annamaria Paroczi Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13-17 H-1111 Budapest Hungary Budapest University of Technology and Economics Department of Mechatronics Optics and Engineering Informatics Bertalan Lajos u. 4-6 Building D room 415 H-1111 Budapest Hungary

ISBN: (纸本)9781457708381

The use of Numerical control and computers in manufacturing has enabled the development of new sheet forming processes. One of these flexible processes is called Incremental Sheet Forming (ISF) in which deformation is localized by the movement of a spherical or flat forming tool. ISF is carried out regularly by a CNC machine tool or by a Robot, which follows a tool-path generated by CAM programs, without the need for costly dies. Despite research progresses in understanding the deformation mechanism in ISF the process still needs a further optimization to guarantee the reliability required for industrial applications. This paper deals with the design of a new smart forming tool, applying FEM modeling and simulation, which is able to measure one of the key process parameters: the sheet thickness during the forming process. The authors analyze the possibility to use a Hall-effect sensor integrated into the forming tool for more precise on-line thickness measurement than what can be found in the literature and first results are reported.

关键词： Thickness measurement Force Magnetic flux density Magnetic field measurement Materials Finite element methods

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Multiple faults diagnosis based on multi-scale designated component analysis

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Nanjing Hangkong Hangtian Daxue Xuebao/Journal of Nanjing University of Aeronautics and Astronautics 2011年第SUPPL.1期43卷 91-96页

作者： Zhou, Funa Wen, Chenglin Chen, Zhiguo Leng, Yuanbao School of Computer and Information Engineering Henan University Kaifeng 475004 China Institute of Information and Control Hangdian University Hangzhou 310018 China Yellow River Institute of Hydraulic Research Zhengzhou 450002 China

Multi-scale principal component analysis(MSPCA) is not a good fault diagnosis method because of pattern compounding effect of principal component analysis(PCA). In addition, multi-scale filtering is required for multiple PCA modeling to increase the computational complexity. In this paper, a multi-scale designated component analysis (MSDCA) method is proposed by using the designated pattern as a uniform projection frame. MSDCA can well solve the problem of pattern compounding effect of MSPCA and reduce the complexity of establishing multiple PCA modeling during multi-scale filtering. Furthermore, MSDCA can also improve the performance of designated component analysis(DCA) fault diagnosis method. Simulation shows the effectiveness of this algorithm.

关键词： Failure analysis

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Feature referenced tip localization enhanced by probability motion model for AFM based nanomanipulations

Feature referenced tip localization enhanced by probability ...

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IEEE International Conference on Robotics and Biomimetics

作者： Shuai Yuan Lianqing Liu Zhidong Wang Ning Xi Yuechao Wang Zaili Dong Zhiyu Wang Zhibo Wang College of Information & Control Engineering of Shenyang Jianzhu University State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences Department of Advanced Robotics Chiba Institute of Technology Department of Electrical and Computer Engineering Michigan State University

ISBN: (纸本)9781457721366

The spatial uncertainties of tip positioning due to the nonlinearity of the PZT scanner and thermal drift hinder the further application of the AFM based nanomanipulation. This paper brings forward feature referenced tip localization enhanced by probability motion model to reduce the spatial uncertainties. An improved motion model is probabilistically built by incorporating the PI model, the creep model and the thermal drift model. For calibrating the accurate model parameters, the statistical experiments are designed and performed. Then the tip position is optimally estimated by combining with a local scan based feature sensing method. The simulation and corresponding experiments are performed to illustrate the validity and feasibility of the calibrated parameters and the algorithm.

关键词： Atomic Force Microscopy terminal interface processor nonlinearity based model parameters Drift models

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Active Collision Avoidance Maneuver Design Under Constant Thrust ⋆

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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

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Imaging and measuring the protein distribution of lymphoma cells using atomic force microscopy

Imaging and measuring the protein distribution of lymphoma c...

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IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS)

作者： Mi Li Lianqing Liu Ning Xi Yuechao Wang Zaili Dong Guangyong Li Osamu Tabata Xiubin Xiao Weijing Zhang State Key Laboratory of Drug Research Shanghai Institute of Materia Medica Chinese Academy of Sciences Shanghai China State Key Laboratory of Robotics Shenyang Institute of Automation Chinese Academy of Sciences Shenyang China Chinese Academy and Sciences Beijing China Department of Electrical and Computer Engineering Michigan State University East Lansing MI USA Department of Electrical and Computer Engineering University of Pittsburgh Pittsburgh PA USA Department of Micro Engineering Kyoto University Kyoto Japan Department of Lymphoma Affiliated Hospital of Military Medical Academy of Sciences Beijing China

Atomic force microscopy (AFM) has proven to be a powerful tool for imaging the topographic properties of biological samples and measuring the molecular specific binding forces at cellular and molecular levels. However, there are still great difficulties in using AFM to acquire images of mammalian suspension live cells due to the suspension growth manner and the softness of the cell membrane. In this paper, lymphoma live cells were trapped in microfabricated patterned pillars and then imaged by AFM in phosphate buffered saline (PBS) solution. In addition, the CD20 distribution on the lymphoma cell surface was visualized three-dimensionally by tethering rituximabs (anti-CD20 monoclonal antibody) onto the AFM tips. The experimental results indicate that immobilization with microfabricated patterned pillars provides a novel way for anchoring suspension mammalian cells, opening the way for further investigation of the molecular mechanisms of rituximab's anti-cancer effect.

关键词： Force Surface topography Atomic force microscopy Surface morphology Suspensions

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

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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

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