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2013 International Conference on Vehicle and Mechanical Engineering and Information technology, VMEIT 2013

作者： Guo, Jing Liu, De Sheng Guo, Qin Science and Technology on Complex Electronic System Simulation Laboratory The Academy of Equipment Huairou Beijing China School of Humanities and Social Sciences National University of Defense Technology Changsha Hunan China

ISBN: (纸本)9783037858202

Following the continual development and maturation of the technology of association analysis, it can be used to mine the relation between spatial data. The paper introduced definition and classification of association analysis technology. It analyses the spatial Association from physics layer, link layer and act layer. Based on above, it provides the process of association analysis about spatial data. © (2013) Trans Tech Publications, Switzerland.

关键词： Data mining

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Research on hall for workshop of meta-synthetic engineering for demonstration on weapon equipment system of system

Research on hall for workshop of meta-synthetic engineering ...

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3rd International Conference on Materials science and Information technology, MSIT 2013

ISBN: (纸本)9783037857700

Aimed to the complexity of and weapon equipment 'system of system'(SoS) and demonstration process, we demonstrated the building needs of hall for workshop of meta-synthetic engineering(HWME) for demonstration on weapon equipment SoS from the angle of function and application. Based on the process of demonstration, the framework of HWME for demonstration of weapon equipment system was built. Based on the mechanism of message transferring, arithmetic and mutual ability, the discussion system of weapon equipment SoS was designed by intelligent decision, group decision, parallel engineering. At last, the paper gave the mutual relation on each composing of the discussion system. © (2013) Trans Tech Publications, Switzerland.

关键词： Demonstrations

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Research on behavioral decision method of simulation entity based on cognitive model

Research on behavioral decision method of simulation entity ...

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2013 International Conference on Applied Mechanics, Mechatronics and Intelligent system, AMMIS 2013

作者： Yang, Haitao Li, Peng Wei Zhao, Hong Li Science and Technology on Complex Electronic System Simulation Laboratory Academy of Equipment Beijing 101416 China Company of Postgraduate Management Academy of Equipment Beijing 101416 China Academy of Equipment Beijing 101416 China

ISBN: (纸本)9783037857625

This paper studies how to use the cognitive model to model the behavioral decision-making for the tactical level simulation. The decision making process includes initial behavior planning and behavior modification. This method has the advantages of accuracy and real-time, this makes the behaviors of the simulation entity more realistic and improves the credibility of simulation. © (2013) Trans Tech Publications, Switzerland.

关键词： Decision making

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An Architectural Approach for Capability Mapping and Gap Analysis

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Journal of systems science and Information 2013年第1期1卷 86-96页

作者： Kewei YANG Bingfeng GE Qingsong ZHAO Jiang JIANG Science and Technology on Complex Systems Simulation Laboratory National University of Defense Technology College of Information System and Management

To cope with the increasing complexity and constantly changing capability requirements of system-of-systems, an architectural approach for capability mapping and gap analysis is ***, a more specific architecture framework is presented. Secondly, on the basis of the analysis of the semantic relationships between constituent architecture data elements, a capability mapping approach is proposed to manage the relations between capabilities and systems based on the mapping matrixes representing associations of core entities. Then, a four-step capability mapping process for the mapping from capabilities to systems is suggested. Moreover, the capability gap analysis on how to identify and fill the capability gaps is also studied. Finally, an example of specific Net-Centric Warfare mission of Precision Engagement is used to illustrate the feasibility of the approach.

关键词： system-of-systems capability architecture description mapping matrixes core entities gap analysis

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Multiuser interference suppression for the uplink of interleaved MIMO OFDMA

Multiuser interference suppression for the uplink of interle...

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2013 International Conference on Communications, Circuits and systems, ICCCAS 2013

作者： Han, Wei Wang, Gang System Simulation Department Zhong Xing Telecommunication Equipment Corporation Shanghai 211203 China National Key Laboratory of Science and Technology on Communications University of Electronic Science and Technology of China Chengdu 610054 China

ISBN: (纸本)9781479930517

In the uplink of multiple-input multiple-output (MIMO) orthogonal frequency division multiple access (OFDMA) systems, multiuser interference (MUI) occurs due to carrier frequency offsets (CFOs). In this paper, a novel scheme is presented to suppress MUI for the interleaved MIMO OFDMA system. The first stage is to compensate the multiple CFOs, which is based on a calculation of optimum CFO correction value maximizing the average signal-to-interference ratio (SIR). And the second stage uses minimum mean square error (MMSE) frequency domain equalizer (FDE), considering the residual MUI as additive noise, to further improve the systems' performance. simulation results show that the proposed scheme exhibits a significant improvement over conventional scheme. © 2013 IEEE.

关键词： Frequency division multiple access

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Parameterized expressions for an improved Rouse equation

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International Journal of Sediment Research 2013年第4期28卷 523-534页

作者： Chen CHENG Zhi-yao SONG Yi-gang WANG Jin-shan ZHANG School of Marine Sciences Nanjing University of Information Science&Technology Key Laboratory of Virtual Geographic Environment under Ministry of Education and Jiangsu Key Laboratory for Numerical Simulation of Large-Scale Complex SystemNanjing Normal University College of Harbor Coastal and Offshore EngineeringHohai University River Harbor Engineering Department Nanjing Hydraulic Research Institute

The equilibrium profile of suspended sediment concentration（SSC） in steady,uniform turbulent flow has been extensively studied since the proposition of Rouse equation（Rouse,1937）.Many researchers keep studying and attempting to improve the Rouse equation by modifying the mixing length *** and Dey（2009） improved Rouse equation based on the modified sediment diffusivity,however,their proposed sediment diffusivity has two parameters,the depth modification factor α and the reciprocal of the sediment Schmidt number β=1/S;,and the corresponding expressions were not given properly in their *** paper aims to parameterize the relevant coefficients,the results shows:（1）α is parameterized from a reasonable approximation by the analysis of surface boundary condition of SSC;（2） considering some effect factors on the settling velocity,β can be expressed by an extended and modified Montcs-Ippen formula,and its related parameters are calibrated by substantial data about the relationship between the primary Rouse parameter Z.= ω;/*** its counterpart Z.’=ω;/β*** verification with some experimental and field datasets,and comparison with related formula,the results show that the sediment diffusivity and SSC profiles have a good agreement with measured data used the present parameterized expressions of a and β,so the present improved Rouse equation is reasonable,and can be applied in practical ***,an approximation and simplified expression of the improved Rouse equation is deduced by using the approach of perturbation,which can be applied easily for the estimation of suspended sediment transport rate.

关键词： Improved Rouse equation Parameterization Sediment transport

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An adaptive image decompression algorithm based on the flight velocity

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Journal of Computational Information systems 2013年第24期9卷 10085-10093页

作者： Bian, Yanshan Zou, Peng Yang, Chao Yu, Ronghuan Graduation School of the Academy of Equipment Beijing 101416 China Science and Technology on Complex Electronic System Simulation Laboratory The Academy of Equipment Beijing 101416 China

This paper presents an adaptive image decompression algorithm based on the changing flight velocity of aircrafts in aerial applications with limited bandwidth, for instance visual navigation systems of helicopters. Based on the observation that there is much visual redundancy for fast-moving viewpoint, our approach dynamically truncates the initially compressed bitstream of an original image tile in an image pyramid to reconstruct the image with different resolutions when real-time flying through the large terrain data. To achieve this, a relationship function between bits per pixel of a reconstructed image tile and the flight velocity of an aircraft is established and then verified by experiments. Also, a lifting wavelet transform based compression algorithm is introduced to meet the requirements of the aforementioned relationship function, accordingly an image compression and decompression framework is designed. Experimental results demonstrate that the proposed algorithm meets the high speed requirement of aerial applications and is very easy of implementation. At the same time, good image quality is evaluated by mean opinion score, which is used to score the decompression images with fast-moving viewpoint. Copyright © 2013 Binary Information Press.

关键词： Redundancy

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Research and Appliance of the Zero-burden based SoS Comprehensive Evaluation Method

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Procedia Computer science 2013年 20卷 290-297页

作者： Zhang Jing Wang Mingyang He Yan Liu Zhiqiang Li Wei Science and Technology on Complex System Simulation Laboratory Beijing Institution of System Engneering Beijing 100101 China PostBox 2857 100085 Bejing China

Current SoS (system of systems) evaluation usually adopts the simulation techniques methods, which always need a mass of manpower, cost a long time, could hardly illustrated the structure information and domain knowledge inside SoS. So it couldn’t satisfy the requirements of SoS comprehensive evaluation very well. To solve the problem above, a new method was prompted. Starting from the SoS concept and closely surrounding the SoS forming mechanism, this paper epurates a serious of factors which most impact the holistic level of SoS, further models the factors, the relationship between factors and the forming mechanism, then proposes a new SoS efficiency evaluation method. Different with other current SoS efficiency evaluation methods, this method not only integrates the domain knowledge, but also costs far less time than simulation, is nearly zero- burden. The requirements of SoS evaluation, such as great complexity, large sample, uncertainty and high performance computing, could be satisfied. Applications proved the rationality and validity of the zero-burden based SoS evaluation method.

关键词： system of systems (SoS) Comprehensive Evaluation SoS simulation Zero-Burden (0-B) Domain Knowledge

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Joint polarization for micro-Doppler signature enhancement

Joint polarization for micro-Doppler signature enhancement

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2013 10th European Radar Conference, EuRAD 2013 - Held as Part of 16th European Microwave Week, EuMW 2013

作者： Cheng, Xu Chang, Yuliang Rao, Bin Liu, Jin Li, Yongzhen College of Electronic Science and Engineering National University of Defense Technology Changsha China State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System National University of Defense Technology Changsha China

ISBN: (纸本)9782874870330

Full polarization radar systems can exploit full polarization to obtain a better degree of TFD's image formation of micro-Doppler target. In this paper, the polarimetric optimization algorithm to improve the TFD's image formation of micro-Doppler has been proposed. The effectiveness of the algorithm is demonstrated by the simulation experiment as well as by the measurement experiment of a space precession target in a microwave anechoic chamber. © 2013 EMA.

关键词： Image enhancement

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A massive grid-connected power accumulator battery testing system using hybrid AC-DC microgrid

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Diangong Jishu Xuebao/Transactions of China Electrotechnical Society 2014年 29卷 449-453页

作者： Long, Bo Sun, Hongbin Wang, Bin Yao, Shuqing Fang, Xu Yao, Gaoxiang University of Electronic Science and Technology Chengdu610054 China State Key Laboratory of Control and Simulation of Power System and Generation Equipments Tsinghua University Beijing100084 China Bohai New Century Machinery Manufacturing Co. Ltd. TianJin300280 China

Nowadays, the network mode of the most energy recovery power battery testing instruments adopts AC-microgrid, which has the drawbacks of low energy recovery efficiency, complicated power circuit topology, cumbersome of the control algorithms. Aiming at these issues, a hybrid AC-DC microgrid system which is based on the power battery testing system has been put forward in this paper. The proposed scheme is composed by an energy storing system, a bidirectional DC-DC converter for test experiment, the grid-side loads, compared with conventional scheme, the proposed scheme has the merits of higher energy recovery efficiency, simplified power circuit for testing instruments. ©, 2014, Diangong Jishu Xuebao/Transactions of China Electrotechnical Society. All right reserved.

关键词： DC-DC converters

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