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2011 4th IEEE International Conference on Computer science and information technology(ICCSIT 2011)

作者： JIANG Jing ZHANG Xuesong North China Institute of Science and Technology China University of Mining and Technology Electro-optical Information Security Control Laboratory Northeast Institute of Electronics Technology

ISBN: (纸本)9781612848334

Two-dimensional fuzzy temperature controller was used to control the room temperature in the system of inverter air-conditioner,self-adjustment PID fuzzy controller was proposed to realize the function of real-time *** control mode of V /F was used to compensate with low *** average sampling algorithm was proposed to implement SPWM waveform ***,the feasibility of selfadjustment PID fuzzy controller was verified by simulation *** actual operation results had proved that selfadjustment PID fuzzy controller had reliable,good output waveform and small harmonic wave,which could meet operational requirements of inverter air-conditioner.

关键词： Parameters Self-adjustment PID Fuzzy controller frequency conversion control fuzzy controller

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Delay-dependent synchronization criteria for delayed chaotic systems with parameter mismatches

Delay-dependent synchronization criteria for delayed chaotic...

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作者： He, Wangli Qian, Feng Han, Qing-Long Key Laboratory of Advanced Control and Optimization for Chemical Processes Ministry of Education East China University of Science and Technology Shanghai 200237 China Centre for Intelligent and Networked Systems And School of Information and Communication Technology Central Queensland University Rockhampton 4702 Australia

ISBN: (纸本)9789881725592

This paper investigates synchronization between two delayed chaotic systems with parameter mismatches. Based on Lyapunov functional approach and generalized Halanay inequality, some delay-dependent criteria are derived to guarantee the synchronization error converges to a bounded ball, whose radius, referred to as the error level, is also estimated. Moreover, an optimization algorithm is established for error level estimate, and the feedback matrix design is also addressed. Finally, a chaotic neural network is used to illustrate the effectiveness of the proposed method. © 2011 Chinese Assoc of Automati.

关键词： Synchronization

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An EKF based resampling algorithm in particle filter

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Journal of Computational information Systems 2011年第8期7卷 2795-2802页

作者： Tang, Xu Huang, Jian Wei, Ping Department of Electronic Engineering University of Electronic Science and Technology of China Chengdu 611731 China National Laboratory of Information Control Technology for Communication System Jiaxing 314033 China

To deal with the sample degradation problem of particle filter, we proposed a novel resampling algorithm. It incorporates the most recent measurements via the extended Kalman filter (EKF) into the resampling procedure to drive particles to the highly likelihood regions. Compared with the EK-PF, which used EKF approximation in the proposal importance distribution, the proposed algorithm showed an improved estimation performance and reduced computational complexity in the simulation of two different nonlinear systems. © 2005 by Binary information Press.

关键词： Extended Kalman filters

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A novel effective ICI self-cancellation method

A novel effective ICI self-cancellation method

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54th Annual IEEE Global Telecommunications Conference: "Energizing Global communications", GLOBECOM 2011

作者： Wen, Miao-Wen Cheng, Xiang Wei, Xing Ai, Bo Jiao, Bing-Li School of Electronics Engineering and Computer Science Peking University Beijing 100871 China State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Beijing 100044 China Key Laboratory of Wireless Sensor Network and Communication Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences 865 Changning Road Shanghai 200050 China School of Information and Electronics Beijing Institute of Technology Beijing 100081 China

ISBN: (纸本)9781424492688

Orthogonal Frequency Division Multiplexing (OFDM) systems may suffer from both carrier frequency offset (CFO) and in-phase/quadrature-phase (I/Q) imbalance at the receiver front end. In this paper, a novel type of intercarrier interference (ICI) self-cancellation method using mirror mapping is proposed to combat these impairment. Based on the proposed novel method and by adopting two widely used mapping operations, we altogether derive two different mirror mapping schemes. Analysis and simulation results verify that the proposed mirror mapping schemes not only inherit the efficiency of the existing self-cancellation schemes in suppressing ICI caused by CFO but also have the ability of compressing or even eliminating IQ imbalance. © 2011 IEEE.

关键词： Mirrors

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A Research of Heart Rate Prediction Model Based on Evolutionary Neural Network

A Research of Heart Rate Prediction Model Based on Evolution...

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International Conference on Intelligent Computation and Bio-Medical Instrumentation (ICBMI)

作者： Feng Xiao Ming Yuchi Mingyue Ding Jun Jo Key Laboratory of Image Processing and Intelligent Control of Education Ministry of China Life College of Science and Technology Huazhong University of Science and Technology Wuhan China School of Information and Communication Technology Griffith University QLD Australia

Heart rate (HR) signal analysis is widely used in the medicine and medical research area. Physical activities (PA) are commonly recognized to greatly affect the changes of heart rate. A method of Evolutionary Neural Network - Neuro-evolution of Augmenting Topologies (NEAT) is used to build a PA-based HR predictor model. Through special coding, crossover and mutation operator, NEAT can implement network topology and connectivity weights evolution simultaneously. The common problem in evolutionary neural network, like competing conventions, how to protect the new innovation are effectively solved. The experimental results demonstrated the application potential of the approach.

关键词： Heart rate Biological neural networks Training Monitoring Neurons Encoding Biomedical monitoring

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Study of second harmonic generation technique for CO2 laser

Study of second harmonic generation technique for CO2 laser

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Academic International Symposium on Optoelectronics and Microelectronics technology (AISOMT)

作者： Zhao Wanli Chen Yanan Yan Xiusheng Guan Shanghong Du Yuping Han Weiwei Science and Technology on Electro-Optical Information Security Control Laboratory Hebei China Laser Saw Department The 45th Research Institute of China Electronics Technology Group Corporation Beijing China

Introduced the rule of choosing second harmonic generation (SHG) crystals, designed a TEA CO 2 laser SHG path using ZGP, studied the thermal load of ZGP and optimized the parameter.

关键词： Crystals Laser beams Frequency conversion Heating Absorption Power lasers Nonlinear optics

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Parallel Spatial Hashing for Collision Detection of Deformable Surfaces

Parallel Spatial Hashing for Collision Detection of Deformab...

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IEEE International Conference on Computer-Aided Design and Computer Graphics

作者： Wenshan Fan Bin Wang Jianliang Zhou Jiaguang Sun Tsinghua University Beijing Beijing CN Key Laboratory for Information System Security Ministry of Education of China China School of Software Tsinghua University China Tsinghua National Laboratory for Information Science and Technology China Beijing AeroSpace Control Center China

We present a fast collision detection method for deformable surfaces with parallel spatial hashing on GPU architecture. The efficient update and access of the uniform grid are exploited to accelerate the performance in our method. To deal with the inflexible memory system, which makes the building of stream data a challenging task on GPU, we propose to subdivide the whole workload into irregular segments and design an efficient evaluation algorithm, which employs parallel scan and stream compaction, to build the stream data in parallel. The load balancing is a key aspect that needs to be considered in the SIMD parallelism. We break the heavy and irregular collision computation down into lightweight part and heavyweight part, ensuring the later perfectly run in load balancing manner with each concurrent thread processes just a single collision. In practice, our approach can perform collision detection in tens of milliseconds on a PC with NVIDIAGTX 260 graphics card on benchmarks composed of millions of triangles. The results highlight our speedups over prior CPU-based and GPU-based algorithms.

关键词： Graphics processing unit Computational modeling Arrays Benchmark testing Compaction Deformable models Buildings

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Lag Quasi-Synchronization of Coupled Delayed Systems With Parameter Mismatch

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IEEE Transactions on Circuits and Systems I: Regular Papers 2011年第6期58卷 1345-1357页

作者： Wangli He Feng Qian Qing-Long Han Jinde Cao Key Laboratory of Advanced Control and Optimization of Chemical Processes Ministry of Education East China University of Science and Technology Shanghai China Centre of Intelligent and Networked Systems and the School of Information and Communication Technology Central Queensland University Rockhampton QLD Australia Department of Mathematics South-East University Nanjing China

This paper is concerned with lag synchronization of two coupled delayed systems with parameter mismatch. Due to parameter mismatch, complete lag synchronization can not be achieved. Therefore, a new lag quasi-synchronization scheme is proposed to ensure that coupled systems are in a state of lag synchronization with an error level. Several simple criteria are derived and the error level is estimated by applying a generalized Halanary inequality and matrix measure. Three examples are given to illustrate the effectiveness of the proposed lag quasi-synchronization scheme. It is shown that as the coupling strength increases, the estimated error level is close to the simulated one, which well supports theoretical results.

关键词： Synchronization Measurement uncertainty Delay Linear matrix inequalities Trajectory Delay effects Couplings

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A Novel Effective ICI Self-Cancellation Method

A Novel Effective ICI Self-Cancellation Method

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2011 IEEE Global Telecommunications Conference - GLOBECOM 2011

作者： Miao-Wen Wen Xiang Cheng Xing Wei Bo Ai Bing-Li Jiao School of Electronics Engineering & Computer Science Peking University Beijing China Key Laboratory of Wireless Sensor Network & Communication Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai China School of Information and Electronics Beijing Institute of Technology Beijing China State Key Laboratory of Rail Traffic Control and Safety Beijing Jiaotong University Beijing China

关键词： OFDM Mirrors Bit error rate Receivers Modulation Educational institutions Strontium

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A delay system method to design of event-triggered control of networked control systems

A delay system method to design of event-triggered control o...

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IEEE Conference on Decision and control

作者： Dong Yue Engang Tian Qing-Long Han Department of Control Science and Engineering and the Key Laboratory of Ministry of Education for Image Processing and Intelligent Control Huazhong University of Science and Technology Hubei 430074 China School of Electrical and Automation Engineering Nanjing Normal University 78 Bancang Street Nanjing 210042 China Center for Intelligent and Networked Systems and the School of Information and Communication Technology Central Queensland University Rockhampton Qld 4702 Australia

ISBN: (纸本)9781612848006

The event-triggered H_(infinity) control design is investigated for networked control systems with uncertainties and transmission delays. A novel event-triggering scheme is proposed, which has some advantages over traditional ones with a continuous detector. Considering the effect of the transmission delay, a delay system model for the analysis is firstly constructed. Then, based on the model and Lyapunov functional method, criteria for the stability with an H_(infinity) norm bound and criteria for the co-design of both the feedback gain and the trigger parameters are derived. In order to solve the feedback gain and the trigger parameters, the linear matrix inequality technique is employed. From the simulation example, it can be concluded that the proposed event-triggering scheme is superior to some other event-triggering schemes in some existing literature.

关键词： feedback gain Networked control systems Event trigger Delay systems Scheme Co-design control systems design control

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