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检索条件"机构=School of Measure-Control Technology and Communication Engineering"

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The Fusion of Multisensor Images with Multi-resolutions

The Fusion of Multisensor Images with Multi-resolutions

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第三十三届中国控制会议

作者： Liping Yan Bo Xiao Yuanqing Xia Meiling Wang Mengyin Fu School of Automation Key Laboratory of Intelligent Control and Decision of Complex SystemsBeijing Institute of Technology School of Information and Communication Engineering Beijing University of Posts and Telecommunications

ISBN: (纸本)9781479947249

Images taken by different sensors at different time instant with different resolutions are formulated by state space models, and are fused by use of Multiscale Kalman Filter(MKF). The effectiveness of the presented algorithm is shown by comparing it with the wavelet based method through experiments, where four performance measures are used. The performance evaluation indices are the root mean square errors(RMSE), the information entropy(Entropy), the space frequency(SF) and the space visibility(SV). Theretical analysis and experimental results show the effectiveness of the presented algorithm.

关键词： Image fusion,multiresolution,multiscale Kalman filter,state space model

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Sequential Fusion and State Estimation for Asynchronous Multirate Multisensor Dynamic Systems

Sequential Fusion and State Estimation for Asynchronous Mult...

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第三十三届中国控制会议

作者： Lu Jiang Liping Yan Bo Xiao Yuanqing Xia Mengyin Fu School of Automation Key Laboratory of Intelligent Control and Decision of Complex SystemsBeijing Institute of Technology School of Information and Communication Engineering Beijing University of Posts and Telecommunications

A sequential fusion and state estimation algorithm for an asynchronous multirate multisensor dynamic system is presented in this *** dynamic system at the finest scale is *** are multiple sensors observing a single target independently with different sampling rates,and the observations are obtained *** present algorithm is shown to be more effective and efficient than the existed *** on a radar tracking system with three sensors are done and show the effectiveness of the present algorithm.

关键词： state estimation,sequential fusion,asynchronous,multirate multisensor,Kalman filter

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Analysis of three-dimensional reality modeling algorithm in animation design

Analysis of three-dimensional reality modeling algorithm in ...

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2nd International Conference on Precision Mechanical Instruments and measurement technology, ICPMIMT 2014

作者： Cai, Bai Chuan Mei, Rong Fang Mei, Jian Guo Yang, Bo School of Software East China Normal University Putuo shanghai 200062 China Department of electronic information and control engineering Yibin Vocational and Technical College Yibin Sichuan 644003 China School of computer and communication engineering University Of Chongqing Shapingba Chongqing 400044 China Chongqing Municipal Health Technical School Banan chongqing 401320 China College of Art and Design Shaanxi University of Science and Technology Shanxi Xian710021 China

ISBN: (纸本)9783038351948

During animation design process, when the overlap of animation graphics is overtopping, inaccurate three-dimensional feature points appear in the established model, which resulting in low fidelity of model. For this drawbacks, a three-dimensional reality animation design modeling based on an optimization algorithm of animation modeling fidelity is proposed. Triangle refinement method is utilized to refine feature points distributed disorderly in the three-dimensional animation model, so as to obtain a three-dimensional animation composed of triangles, according to the method of calculating the intersection of intersecting triangles, optimal triangles can be achieved, i.e. the new three-dimensional coordinate points are acquired. Afterwards, two-dimensional coordinate calculation is processed for the new added points to get the exact coordinates of the point in the three-dimensional animation model, eventually obtain a three-dimensional animation model with high degree of fidelity. © (2014) Trans Tech Publications, Switzerland.

关键词： Three dimensional computer graphics

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Simulation on eliminating interference in long-distance communication

Simulation on eliminating interference in long-distance comm...

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2nd International Conference on Precision Mechanical Instruments and measurement technology, ICPMIMT 2014

作者： Mei, Rong Fang Cai, Bai Chuan Mei, Jian Guo Li, Xiu Ying School of computer and communication engineering University Of Chongqing Shapingba Chongqing 400044 China Department of electronic information and control engineering Yibin Vocational and Technical College Yibin Sichuan 644003 China School of Software East China Normal University putuo shanghai 200062 China Chongqing Municipal Health Technical School banan chongqing 401320 China Institute of Computer Technology Southwest Jiaotong University Chengdu Sichuan 610031 China Wuliangye Institute of Technology Yibin Vocational and Technical College Yibin Sichuan 644003 China

ISBN: (纸本)9783038351948

Due to wide frequency band, the long-distance communication is prone to be jammed by traditional radios. Furthermore, severe interference will lead to serious deterioration of performance. To solve this problem, the paper proposes energy-balance interference eliminated method and mixed communication algorithm, namely interference cancellation system model. The system elects a cluster head by utilizing the residual energy of nodes and the distance between cluster heads to balance the energy consumption and maximum the life cycle of the network. A Boolean vector corresponding to a random number defined is applied to this interference cancellation system. Experimental results show that under the premise of accurate channel estimation, systems using this technology to eliminate external interference in long-distance communication system have practical significance. © (2014) Trans Tech Publications, Switzerland.

关键词： Energy utilization

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Optimal power allocation for heterogeneous data traffic in NAF relay-assisted uplink transmission

Optimal power allocation for heterogeneous data traffic in N...

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International Symposium on communications and Information Technologies (ISCIT)

作者： Peng Gong Haiqiao Wu Ping Li Wenbo Shi Duk Kyung Kim Beijing Institute of Technology National Key Lab. of Mechatronic Engineering and Control Beijing China Northeastern University School of Computer and Communication Engineering Qinhuangdao China Department of Information and Communication Engineering Inha University Nam-gu Incheon Korea

ISBN: (纸本)9781479944156

For the future wireless networks, heterogeneous data traffic services, i.e., variant bit-rate (VBR) service and constant bit rate (CBR) service are needed to be supported. The optimal power allocation algorithm for the non-orthogonal AF (NAF) Relays-assisted multicast transmission, which may be suitable for the VBR service, has been investigated in [2]. However, the power allocation algorithms for the cases of CBR service and heterogeneous data traffics service are not considered. In this paper, a power allocation problem is addressed by considering the heterogeneous data traffic with VBR and CBR services in the uplink data transmission, where Different from assumption of infinite length of spreading code in [2], a finite length of spreading code is considered and the interference among the signals from mobile terminal and relays exists. And then, an optimal power allocation algorithm is proposed by solving its inverse problem. Simulation results demonstrate the efficiency of the proposed algorithm.

关键词： Relays Mobile communication Algorithm design and analysis Three-dimensional displays Resource management Power demand Radio access networks

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Adaptive Object Retrieval with Kernel Reconstructive Hashing

Adaptive Object Retrieval with Kernel Reconstructive Hashing

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IEEE Conference on Computer Vision and Pattern Recognition

作者： Haichuan Yang Xiao Bai Jun Zhou Peng Ren Zhihong Zhang Jian Cheng School of Computer Science and Engineering Beihang University School of Information and Communication Technology Griffith University College of Information and Control Engineering China University of Petroleum Software School Xiamen University Institute of Automation Chinese Academy of Sciences

ISBN: (纸本)9781479951192

Hashing is very useful for fast approximate similarity search on large database. In the unsupervised settings, most hashing methods aim at preserving the similarity defined by Euclidean distance. Hash codes generated by these approaches only keep their Hamming distance corresponding to the pairwise Euclidean distance, ignoring the local distribution of each data point. This objective does not hold for k-nearest neighbors search. In this paper, we firstly propose a new adaptive similarity measure which is consistent with k-NN search, and prove that it leads to a valid kernel. Then we propose a hashing scheme which uses binary codes to preserve the kernel function. Using low-rank approximation, our hashing framework is more effective than existing methods that preserve similarity over arbitrary kernel. The proposed kernel function, hashing framework, and their combination have demonstrated significant advantages compared with several state-of-the-art methods.

关键词： Kernel Eigenvalues and eigenfunctions Euclidean distance Equations Approximation methods Training Binary codes

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A two-layer optimization framework for UAV path planning with interval uncertainties

A two-layer optimization framework for UAV path planning wit...

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IEEE Workshop on Computational Intelligence in Production and Logistics Systems (CIPLS)

作者： Bai Li Raymond Chiong Mu Lin School of Control Science and Engineering Zhejiang University Hangzhou China School of Design Communication and Information Technology The University of Newcastle Callaghan Australia College of Biomedical Engineering and Instrument Science Zhejiang University Hangzhou China

We propose a two-layer optimization framework for the unmanned aerial vehicle path planning problem to handle interval uncertainties that exist in the combat field. When evaluating a candidate flight path, we first calculate the interval response (i.e., the upper and lower bounds) of the candidate flight path within the inner layer of the framework using a collocation interval analysis method (CIAM). Then, in the outer layer, we introduce a novel criterion for interval response comparison. The artificial bee colony algorithm is used to search for the optimal flight path according to this new criterion. Our experimental results show that the CIAM adopted is a feasible option, which largely eases the computational burden. Moreover, our derived flight paths can effectively handle bounded uncertainties without knowing the corresponding uncertainty distributions.

关键词： Uncertainty Path planning Cost function Educational institutions Programming Bismuth

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The Multi-Objective Hybrid SA Algorithm for DC Motor Design

The Multi-Objective Hybrid SA Algorithm for DC Motor Design

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2014 International Conference on Artificial,Intelligence and Software engineering(AISE 2014)

作者： Xiao-min ZHAO Guo-li LI Rui ZHOU Kun JIANG Cun-gang HU Guang-hui FANG Hao MENG School of Electrical Engineering and Automation Anhui University National Engineering Laboratory of Energy-Saving Motor & Control Technology Anhui University Anhui Province Laboratory of Electrical Economize and Safety Anhui University College of Computer Science and Technology Anhui University School of Communication and Control Engineering Jiangnan University School of Information and Computer Anhui Agricultural University

The DC motor is optimal designed using multi-objective hybrid Simulated Annealing(SA) algorithm. Typical examples of optimization show the efficiency and feasibility of the algorithm.

关键词： DC motor Hybrid SA algorithm Multi-objective Optimization

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A single-station location method based on long baseline interferometer

A single-station location method based on long baseline inte...

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International Symposium on communications and Information Technologies (ISCIT)

作者： Li Ping Wang Guohong Xiaopeng Yan Gong Peng Wenbo Shi Liu Jian Beijing Institute of Technology National Key Lab. of Mechatronic Engineering and Control Beijing China Northeastern University School of Computer and Communication Engineering Qinhuangdao China China Electronics Technology Group Corporation Zhejiang China

ISBN: (纸本)9781479944156

Conventional long baseline interferometer based Direction of Arrival (DOA) requires multi-group long baselines and short baselines to deblur. In this paper, only using the time difference of arrival (TDOA) data of long baseline interferometer can cancel the debluring shortage and achieve high-precision DOA estimation. Meanwhile iterative filtering algorithm is adopted to extract high-precision changing rate of phase difference from the fuzzy phase difference data of long baseline. Combined with the measured DF and the change rate of phase difference, particle filter algorithm is utilized to achieve high-precision single-station passive location. Parameter measurement and the distribution of location error are verified through theoretical simulations. And the simulation results demonstrate the efficiency of the single-station location method based on long baseline interferometer.

关键词： Direction-of-arrival estimation Accuracy Filtering Atmospheric measurements Particle measurements

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Experimental research for 60 GHz OFDM-RoF system with concatenated RS/PTCM code

Experimental research for 60 GHz OFDM-RoF system with concat...

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International Conference on Information Science, Electronics and Electrical engineering (ISEEE)

作者： Minlei Xiao Yun Cheng Lin Chen Department of Information Science and Technology Hunan University of Humanities Science and Technology Loudi China Department of Communication and Control Engineering Hunan University of Humanities Science and Technology Loudi China School of Information Science and Engineering Hunan University Changsha China

RS code concatenated with PTCM technology and symbol interleaver are experimentally investigated in 60 GHz OFDM-RoF system. Symbol interleaver is used to combat the asymmetrical error distribution in OFDM sub-carriers, and RS with high code rate concatenated with PTCM can correct errors to improve performance of the OFDM system. Experimental results show that the receiver sensitivity of 2.5 Gb/s OFDM signal adopted the 16QAM modulation format with RS-PTCM scheme can save up to 7 dB receive power relative to 2.5 Gb/s OFDM signal with the uncoded QPSK scheme.

关键词： OFDM Optical fibers Radio frequency Phase shift keying Optical receivers

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