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IEEE 14th International Symposium on Applied Computational Intelligence and Informatics (SACI)

作者： Carstea, Ciprian Butaru, Florin Ancuti, Mihaela-Codruta Musuroi, Sorin Deacu, Antheia Babaita, Mircea Stanciu, Alin Marius Univ Politehn Timisoara Elect Engn Dept Timisoara 300223 Romania Univ Politehn Timisoara Elect & Telecommun Dept Timisoara 300223 Romania Univ Politehn Timisoara Timisoara 300223 Romania

ISBN: (纸本)9781728173764

The purpose of the present paper is to build a driving algorithm ensuring, from the point of view of the captured wind energy, the wind turbine's operation within the optimum area, based on the measurements of the wind speed. The optimum values of the permanent magnet synchronous generator's (PMSG) delivered power are determined based on the kinetic moment equation, such that the PMSG's mechanical angular speed tends towards the optimum one. The operation of one wind power turbine, within the wind farm located in Dobrogea, is analyzed by measuring the wind speed with a sampling step of 30 [s]. The optimum values of the PMSG's delivered power are compared with the real ones, measured at the permanent magnet synchronous generator output. Finally, the conclusion are drawn.

关键词： permanent magnet synchronous generator (PMSG) optimum algorithm wind power plant energy efficiency optimum operation area variable wind speeds

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Ultra-wideband Passive radars Fundamental Theory and Applications 17

Ultra-wideband Passive radars Fundamental Theory and Applica...

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17th IEEE International Conference on Mathematical Methods in Electromagnetic Theory (MMET)

作者： Pavlikov, V. V. Volosyuk, V. K. Zhyla, S. S. Natl Aerosp Univ Kharkiv Aviat Inst Aerosp Radio Elect Syst Dept Kharkov Ukraine

ISBN: (纸本)9781538654385

Passive radars are such radars that record and process signals of the objects own radiation within the radio wave band. They are used to solve a wide range of remote sensing problems. The observations registered by such radars are a mixture of stochastic signals of the investigated and interfering objects, as well as the internal noise of the receiver. Signals and noise are completely random, and their statistical characteristics are the same. Another feature of the transmitting radio thermal signals is that their emission spectrum is ultra-wideband (UWB) (except for polyatomic gases, which are characterized by discrete absorption and emission lines). Therefore, it is expedient to provide wide-or UWB for the passive radars operating frequencies band. Transition to UWB signal processing requires the improvement of the passive UWB radars theory. This theory should be able to synthesize new algorithms for signal processing and reveal the physical essence of parameter estimates at the output of the radar. This will allow solving the inverse problems of estimating the parameters and characteristics of the objects. Results of many years of research are summarized in this paper, a logical connection is formed between the key elements of the microwave radiation theory, the mathematical apparatus for processing UWB signals and the fundamentals of the optimal signal processing algorithms synthesis. Examples of the signal processing algorithm synthesis in a single-and a multichannel passive radar are also given.

关键词： Passive radars optimal signal processing optimum algorithm stochastic signals radio thermal signals

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Radiometer with Signal Energies Ratio 3

Radiometer with Signal Energies Ratio

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3rd IEEE Radar Methods and Systems Workshop (RMSW)

作者： Pavlikov, V. V. Zhyla, S. S. Odokienko, A. V. Antonov, M. O. National Aerosp Univ Kharkiv Aviat Inst Kharkov Ukraine

ISBN: (纸本)9781509010509

The method of optimal signal processing in the radiometer with instability of predetection section is obtained. Unlike zero-type radiometer the method do not require controlled oscillator and can be realized on FPGA. A signal processing method feature is independence of parameter estimates on the instability of predetection section. The potential characteristics of this method are investigated. Also the radiometer block diagram is developed.

关键词： passive radar optimum algorithm signal processing

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Parameter Design and Optimization of Electric Vehicle

Parameter Design and Optimization of Electric Vehicle

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IEEE Transportation Electrification Conference and Expo (ITEC Asia-Pacific)

作者： Yin, Qidong Wu, Zhongbin Rui, Xiaoming North China Elect Power Univ Beijing Peoples R China

ISBN: (纸本)9781479942398

Improving the efficiency critical issue for electric vehicle's technologies. Suitable parameters of this system are beneficial to enhancing the fuel economy and extending the mileage since battery on electric vehicle has a limit of capacity. In this paper, we establish models of vehicle system and components in MATLAB/Simulink to study parameter design for electric vehicle. We apply genetic algorithm in optimizing parameters of the prototype. Control strategy is also discussed to obtain the optimal performance of electric vehicle. We use simulations to test our proposed design. The electric vehicle can meet the requirement of power and fuel economy characteristic. Improvement is obtained through optimizing the parameters of transmission. These results show an agreement between the theory and our design.

关键词： electric vehicle parameter design optimum algorithm powertrain system

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Application of Genetic algorithm in optimum Design of Structure

Application of Genetic Algorithm in Optimum Design of Struct...

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International Conference on Structures and Building Materials

作者： Liu, Xuebing Zeng, Fankui Li, Fuqiang Wang, Jing Xian Univ Architecture & Technol Sch Civil Engn Xian Peoples R China Qingdao Agr Univ Coll Architect Engn Qingdao Peoples R China China Northeast Architect Design & Res Inst Co Lt Qingdao Peoples R China

ISBN: (纸本)9780878492060

This paper introduces the basic principle and characteristic of genetic algorithm (called GA), and it points out the shortcoming of ordinary optimum algorithm and the merit of GA. Comparing the optimum results of GA with accurate value by exemplification, and it is good. This paper provides a systematic thought model and a good method for readers.

关键词： Genetic algorithm optimum algorithm Structure optimum Design

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Research on Multi-stage optimum Design Technology for Virtual Supply Chain Based on Cybermediary in Manufacturing Industry

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Journal of Donghua University(English Edition) 2011年第3期28卷 331-335页

作者：刘雪红张铖 School of Mechanical & Electronic Engineering Wuhan University of Technology

Virtual supply chain based on cybermediary (VSC-CM) is an innovative VSC pattern meeting informationization development requirements in the manufacturing industry. Methods and features of customer-demand-oriented optimum VSC design adopted by CM are discussed. A customer demand goal system applying to VSC-CM design and quantifying methods of these goals are accordingly given. Then a three-stage optimum VSC design scheme based on dynamic goals is designed, which considers both the holistic optimization of VSC and individuation demands of member enterprises. To implement the scheme, an optimum algorithm synthesizing fuzzy c-means clustering algorithm and topsis comprehensive evaluation algorithm is presented. Feasibility and rapidity of this scheme is proved through a case analysis finally.

关键词： virtual supply chain cybermediary customer demand goal three-stage scheme optimum algorithm

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Comparison of the Noise Robustness of FVC Retrieval algorithms Based on Linear Mixture Models

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REMOTE SENSING 2011年第7期3卷 1344-1364页

作者： Obata, Kenta Yoshioka, Hiroki Aichi Prefectural Univ Dept Informat Sci & Technol Nagakute Aichi 4801198 Japan

The fraction of vegetation cover (FVC) is often estimated by unmixing a linear mixture model (LMM) to assess the horizontal spread of vegetation within a pixel based on a remotely sensed reflectance spectrum. The LMM-based algorithm produces results that can vary to a certain degree, depending on the model assumptions. For example, the robustness of the results depends on the presence of errors in the measured reflectance spectra. The objective of this study was to derive a factor that could be used to assess the robustness of LMM-based algorithms under a two-endmember assumption. The factor was derived from the analytical relationship between FVC values determined according to several previously described algorithms. The factor depended on the target spectra, endmember spectra, and choice of the spectral vegetation index. Numerical simulations were conducted to demonstrate the dependence and usefulness of the technique in terms of robustness against the measurement noise.

关键词： fraction of vegetation cover linear mixture model propagated error vegetation index optimum algorithm asymmetric ellipse noise robustness

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Automatic setup of SCUBA-2 Detector Arrays

Automatic setup of SCUBA-2 Detector Arrays

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Conference on Millimeter and Submillimeter Detectors and Instrumentation for Astonomy IV

作者： Gao, Xiaofeng Kelly, Dennis Holland, Wayne S. MacIntosh, Michael J. Lunney, David Bintley, Dan Hiltonc, Gene C. Irwin, Kent D. Reintsema, Carl D. Amiri, Mandana Burger, Bryce Halpern, Mark UK Astron Technol Ctr Blackford Hill Edinburgh EH9 3HJ Midlothian Scotland Joint Astron Ctr Hilo HI 96720 USA

ISBN: (纸本)9780819472304

The detector arrays for the SCUBA-2 instrument consist of TES bolometers with superconducting amplifier and multiplexing circuits based on Superconducting Quantum Interference Devices (SQUIDs). The SCUBA-2 TES arrays and their multiplexed SQUID readouts need to be set-up carefully to achieve correct performance. algorithms have been developed and implemented based on the first available commissioning grade detector, enabling the array to be set up and optimized automatically.

关键词： TES superconducting detectors submillimetre astronomy SQUID array SCUBA-2 optimum algorithm automatic JCMT

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Stability analysis of underground engineering based on multidisciplinary design optimization

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Journal of Coal Science & Engineering(China) 2008年第4期14卷 608-612页

作者：马荣周科平高峰 School of Resources and Safety Engineering Central South UniversityChangsha 410083China

Aiming at characteristics of underground engineering,analyzed the feasibility of Multidisciplinary Design Optimization (MDO) used in underground engineering,and put forward a modularization-based MDO method and the idea of MDO to resolve problems in stability analysis,proving the validity and feasibility of using MDO in underground engi- *** of uncertainty,complexity and nonlinear become bottle-neck to carry on underground engineering stability analysis by ***,the application of MDO in underground engineering stability analysis is still at a stage of exploration,which need some deep research.

关键词： underground engineering multidisciplinary design optimization （MDO） stability analysis optimum algorithm

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Fuzzy comprehensive assessment in bridge state based on the uncertain analytic hierarchy process

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Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology 2005年第4期27卷 54-57页

作者： Fan, Jian-Feng Yuan, Hai-Qing Liu, Wen-Long Zeng, Dong-Shan Sch. of Civil Engineering and Architecture Wuhan Univ. of Technology Wuhan 430070 China

The analytic hierarchy process approach is usually applied to the bridge state assessment, but it can't reflect the uncertainty and fuzziness of the index. In this paper, an uncertain analytic hierarchy process was applied to the multistage synthesis fuzzy assessment of bridge structures. Adopting the uncertain weight judgment matrix, the optimized weight values were obtained through the optimum algorithm. Then the comment scores were fuzzed through the grade membership function of the fuzzy theory. When the fuzzy results were carried out, the grade of bridge state was determined by the maximal subjection grade and its near degree. In the end, an instance was given to prove the feasibility of using the uncertain analytic hierarchy process in the bridge state assessment.

关键词： Analytic hierarchy process Bridge assessment Fuzzy assessment Interval judgment matrix optimum algorithm

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