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AIAA Journal 2006年第1期44卷 1-10页

作者： Oran, Elaine Kailasanath, Kazhikathra Aggarwal, Suresh K. Ahmadian, Mehdi Alexandrov, Natalia Auweter-Kurtz, Monika Bailly, Christophe Balachandran, Balakumar Berman, Alex Candler, Graham V. Chelliah, Harsha K. Chokani, Ndaona Fujii, Kozo Gaitonde, Datta V. Ghia, Kirti Karman N. Givi, Peyman Gore, Jay P. Kaplan, Carolyn R. Livne, Eli Lucht, Robert P. Messac, Achille Wing, N.G. Palazotto, Anthony N. Pierre, Christophe Plotkin, Allen Roy, Ajit K. Saigal, Sunil Sforza, Pasquale M. Shivakumar, Kunigal N. So, Ronald M.C. Springer, Anthony M. Anatolitumin, Anthony M. Zhong, Xiaolin United States Division of Computational Physics United States United States AIAA United States APS United States National Academy of Engineering United States Center for Reactive Flow and Dynamical Systems Naval Research Laboratory United States Institute of Physics Department of Mechanical Engineering University of Illinois at Chicago United States ASME Combustion Institute Department of Mechanical Engineering Virginia Polytechnic Institute State University United States Aeronautics Systems Analysis Branch NASA Langley Research Center United States SIAM ISSMO Aerospace Engineering Institute of Space Systems Universität Stuttgart Germany Amelia Earhart Italy International Amelia Earhart Award Committee Italy France France Mechanical Engineering University of Maryland College Park United States AAM SPIE ASA ASME Technical Committees of Multi-Body Systems Nonlinear Dynamics Dynamics and Control of Structures and Systems American Helicopter Society United States Aerospace Engineering and Mechanics University of Minnesota United States AIAA Thermophysics Technical Committee Mechanical and Aerospace Engineering University of Virginia United States AIAA Propellants and Combustion Technical Committee AIAA's Transition Study Group Aerodynamics Measurement Technology Technical Committee Thermophysics Technical Committee Japan MOSAIC project on the Technology Pressure-sensitive Paint Measurement System Japan High-Speed Flows Group Air Vehicles Directorate Air Force Research Laboratory Wright-Patterson Air Force Base United States Wright State University United States Aerospace Engineering and Engineering Mechanics United States United States Mechanical Engineering University of Pittsburgh United States School of Mechanical Engineering Purdue University United States Committee on Heat Transfer in Fire and Combustion Systems Japan Board of Advisors Central States Section Combustion Institute United States AIChE United States Tau Beta Pi United States

No abstract available

关键词： institute of Space and Astronautical Science American Society of Mechanical Engineers Direct Numerical Simulation Aerospace engineering MDO Propellant Air Forces Aerodynamics Heterogeneous Combustion NASA Langley Research Center

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A combined SOC estimation method under varied ambient temperature for a lead-acid battery

Conference Proceedings - IEEE Applied Power Electronics Conf...

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Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC 2005年 2卷 991-997页

作者： Colemn, M. Zhu, C.B. Lee, C.K. Hurley, W.G. Power Electronics Research Centre National University of Ireland Galway Ireland Department of Automation Measurement and Control Engineering Harbin Institute of Technology Harbin China

ISBN: (纸本)0780389751

This paper describes a practical ambient temperature dependant battery state of charge (SOC) estimation algorithm that can determine the SOC of a battery operating under load conditions. SOC is an essential parameter in a monitoring system, which is the basis of a Battery Management System (BMS). Temperature has a profound effect on the actual capacity or SOC of the battery. The proposed model in this paper determines the SOC by incorporating the changes occurring to charge acceptance, power deliverable and internal resistance due to the variations in temperature. © 2005 IEEE.

关键词： Lead acid batteries

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Uncertainty of thin cylinder diameter measured by means of optical diffraction

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Guangdian Gongcheng/Opto-Electronic engineering 2005年第7期32卷 55-58页

作者： Cui, Jian-Wen Zhang, Jun Tang, Wen-Yan Li, Hui-Peng Department of Automation Measurement and Control Engineering Harbin Institute of Technology Harbin 150001 China

To improve measurement accuracy of thin cylinder's diameter by optical diffraction, an improved model is established with recursive method, which is more accurate. Theoretical error of customary model created by diffraction angle is eliminated so that the measurement accuracy is improved when the diameter is measured with the improved model. The uncertainty of measurement is created by three cases, namely the wavelength error of light source, position error of dark fringe and adjustment error of focal length of lens. The uncertainty errors due to above three cases are 0.024 μm, 1.920 μm and 0.529 μm respectively calculated with the improved model. Experimental results show that the relative measurement error is less than 0.5%, which is better than the present level of 1%, and uncertainty of measurement is less than 2 μm, which agrees well with theoretical analysis.

关键词： Cylindrical measurement Diameter measurement Fraunhofer diffraction Measuring errors

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Development and application of reflective intensity-modulated fiber optic sensing technique for displacement measurement

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Guangxue Jishu/Optical Technique 2005年第SUPPL.期31卷 342-344+349页

作者： Li, Hai-Yan Pu, Zhao-Bang Ge, Wen-Tao Department of Automatic Measurement and Control Harbin Institute of Technology Harbin 150001 China Department of Control Science and Engineering Harbin Institute of Technology Harbin 150001 China

For its unique merits, the reflective intensity-modulated fiber-optic sensing technique was widely applied in displacement detection and became research hotspot. However, the stability of light source, the disturbance of environment and the reflectivity variation of the measured surface had effects on the merchandising process. The current work for us to do was to find out some technique scheme suitable for the product merchandising. Thus the fiber-optic sensing technique could be used more widely in national defence and economic construction. The working principle of reflective intensity-modulated fiber optic sensor was presented. And the latest research findings and the application of it in displacement detection were also given.

关键词： Displacement detection Fiber optic sensing Intensity-modulated

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Contour extraction of a moving vehicle in visible images based on image fusion

Contour extraction of a moving vehicle in visible images bas...

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International Conference on Machine Learning and Cybernetics, ICMLC 2005

作者： Zhao, Peng Wang, Ni-Hong Pu, Zhao-Bang Information and Computer Engineering Institute North East Forestry University Harbin City 150040 China Department of Automation Measurement and Control Harbin Institute of Technology Harbin City 150001 China

ISBN: (纸本)078039092X

Infrared (IR) and visible images are commonly used in the detection and tracking of a moving target. A novel contour extraction scheme for a moving vehicle is proposed in this paper. Firstly, a motion segmentation technology is applied to get an initial contour. Secondly, a dynamic contour is applied to represent the initial contour and then converges to the target's contour. Lastly, a novel image fusion is proposed, which minimizes the B-spline norm's square of control point vector's difference in two modal images. Image registration is not required. The experiment indicates that for visible images, average contour extraction error decreases by 58.14% after the fusion. Moreover, a fast iteration algorithm of dynamic contour based on the Newmark algorithm is devised. This image fusion is implemented only with control point vectors and is suitable for real-time processing. © 2005 IEEE.

关键词： Feature extraction

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Evaluation of anti-fouling performance for ion-rod water treater with automatic dynamic simulator of fouling

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化工学报 2005年第4期56卷 668-671页

作者：孙灵芳杨善让秦裕琨徐志明 Power Engineering and Engineering Thermophysics Postdoctoral Workstation Harbin Institute of Technology Harbin 150001HeilongjiangChina Energy Conservation and Measurement-control Technique Research Center Northeast China Institute of Electric Power EngineeringJilin 132044JilinChina Power Engineering and Engineering Thermophysics Postdoctoral Workstation Harbin Institute of Technology Harbin 150001HeilongjiangChina

The application of a novel Automatic Dynamic Simulator of Fouling (ADSF) to evaluate the effectiveness of ion-rod water treater is *** effects of some parameters of the water treater were studied with an ADSF made according to patented technology, and orthogonal experimental design was adopted with the use of artificial hard *** results validated that the ion-rod water treater could mitigate fouling,and the anti-fouling efficiency varies with the test *** anti-fouling efficiency of treater increased with the increase of flow velocity in the range of 0.8—1.2 m·s -1 and output voltage in the range of 7500—15000 *** efficiency weat up initially, and then went down with the increase in *** rough surface of ion-rod was superior to the smooth *** order of influence on treater performance with respect to these factors was as follows: water hardness, roughness of surface, flow velocity and output *** research also provided a guide to improving the performance of ion-rod water treater.

关键词：污垢离子棒水处理器阻垢性能

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Nonlinear flow control based on a low dimensional model of fluid flow

Nonlinear flow control based on a low dimensional model of f...

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Symposium on Nonlinear control and Observer Design: From Theory to Applications, 2005

作者： King, Rudibert Seibold, Meline Lehmann, Oliver Noack, Bernd. R. Morzyński, Marek Tadmor, Gilead Measurement and Control Group Berlin University of Technology Germany Hermann-Föttinger-Institut Berlin University of Technology Germany Institute of Combustion Engines and Transportation Poznań University of Technology Poland Department of Electrical and Computer Engineering Northeastern University Boston United States

ISBN: (纸本)3540279385

Nonlinear control design is shown to be a critical enabler for robust model-based suppression of a flow instability. The onset of oscillatory vortex shedding is chosen as a well investigated benchmark problem of flow control. A low-dimensional Galerkin model using a Karhunen-Loève decomposition of the flow field is adopted from earlier studies of the authors as a control-oriented fluid flow representation. Several strategies of nonlinear controller design are employed, both, to the Galerkin model and to the flow via a direct numerical simulation of the Navier-Stokes equations (NSE). The aim is to find methods which respect the validity of low order models. Examples are formal methods such as input-output linearization, Lyapunov-based, backstepping controllers etc., and physically motivated controllers. Whereas the first test-bed is easily mastered by the formal methods, the application to the NSE is more critical, due to robustness issues. © Springer-Verlag Berlin Heidelberg 2005.

关键词： Navier Stokes equations

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Novel iris recognition method

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Guangdian Gongcheng/Opto-Electronic engineering 2005年第5期32卷 89-92页

作者： Zhang, Peng-Fei Li, De-Sheng Wang, Qi Department of Automation Measurement and Control Harbin Institute of Technology Harbin 150001 China College of Mechanical Engineering and Applied Electronic Technol. Beijing University of Technology Beijing 100022 China

A novel iris recognition method based on multi-texture feature fusion is presented in the paper. The extraction of the texture features with different resolutions in different directions are carried out by performing Gabor wavelet transform for iris image and the extracted features are used as global features of iris. The local features of iris are extracted by applying gray scale level Co-Occurrence Matrix (COM) to the filtered sub-window image. The global features and local features will be recognized and sorted by weighting Euclidean distance and the minimum distance, respectively. A sorting method with Fuzzy Inference System (FIS) feature fusion is designed to improve the robustness of iris recognition. Experimental results show that the method is effective and feasible with recognition ratio up to 98.5%, False Acceptance Rates (FAR) lower than 0.1% while False Rejection Rates (FRR) keeping 1.4%.

关键词： Feature extraction Feature fusion Image preprocessing Iris recognition

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Novel contour extraction algorithm for a moving target based on image fusion

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Guangdianzi Jiguang/Journal of Optoelectronics Laser 2005年第8期16卷 973-977页

作者： Zhao, Peng Cao, Jun Pu, Zhao-Bang Zhang, Tian-Wen Department of Automation Measurement and Control Harbin Institute of Technology Harbin 150001 China Mechanic and Electronic Institute Northeast Forestry University Harbin 150040 China Department of Computer Science and Engineering Harbin Institute of Technology Harbin 150001 China

A contour extraction algorithm for a moving target is proposed. This algorithm consists of three steps. Firstly, motion segmentation is applied respectively to infrared and visible image sequences to get an initial contour of a moving target. Secondly, a dynamic contour is applied to make the initial contour converge to the target's contour. Finally, two novel image fusions are applied. The first fusion minimizes L2 norm's square of the difference of control point vectors in two modal images without image registration. The second fusion is realized by the modified differential coupling with image registration. Contrasting detection experiments indicate the second fusion is better. Meanwhile, a fast iteration algorithm of dynamic contour based on the Newmark method is devised. A contrasting experiment indicates its iteration time for stable convergence decreases by 21.01% compared with the Wilson-θ method.

关键词： Object recognition

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Algorithm for circle subpixel location detecting based on point Hough transformation

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Guangxue Jishu/Optical Technique 2005年第SUPPL.期31卷 155-157页

作者： Chen, Shi-Zhe Pu, Zhao-Bang Liu, Guo-Dong Hu, Tao Qu, Yu-Fu Department of Automatic Measurement and Control Harbin Institute of Technology Harbin 150001 China School of Instrument Science and Photoelectric Engineering Beijing University of Aeronautics and Astronautics Beijing 100083 China

In order to improve location precision and speed of base circle in PCB (Printed Circuit Board) detecting, an algorithm for circle subpixel location detection was presented. At first, the edge points could be obtained from edge detecting the filtered image using canny operator, then the circle approximately position and its parameter could be gained through dealing with the edge points using point Hough transformation;secondly, the circle's edge points could be got through deleting big noise points according to the circle's parameter, then the circle's subpixel edge points could be obtained from subdividing the circle's edge points;finally the circle's precision location and its parameter could be obtained through fitting the circle's subpixel edge points using least square method. The experiments demonstrate that this algorithm can detect the base circle's subpixel location and its parameter. The center location precision is up to 0.5 pixel, and the radius detection precision is up to 0.3 pixel, and the speed is very high.

关键词： Circle detection Location PCB Point Hough transformation Subpixel

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