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第三十三届中国控制会议

作者： NGUYEN Hoang Vu HUANG Rong YANG Wankou SUN Changyin School of Automation Southeast University Faculty of Industrial Technology Tien Giang UniversityMy Tho 860000Viet Nam Key Lab of Measurement and Control of Complex Systems of Engineering Ministry of Education

ISBN: (纸本)9781479947249

Based on the recent success of Low-Rank matrix Representation(LRR),we propose a novel classification method for robust face recognition,named LRR-based Classification(LRRC).By the ideal that if each data class is linearly spanned by a subspace of unknown dimensions and the data are noiseless,the lowest-rank representations of a set of test vector samples with respect to a set of training vector samples have the nature of being both dense for within-class affinity and almost zero for between-class ***,the LRR exactly reveals the classification of the *** experimental results demonstrate that LRRC has competitive with state-of-the-art classification methods.

关键词： Low rank representation,Face recognition,Feature extraction,Classification,Sparse representation

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Consensus-based distributed estimation in homogeneous sensor networks

Consensus-based distributed estimation in homogeneous sensor...

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International Conference on control and Automation (ICCA)

作者： Ya Zhang Yu-Ping Tian Ministry of Education Key Laboratory of Measurement and Control of Complex Systems of Engineering Nanjing China

This paper studies distributed estimation of linear dynamical target in homogeneous sensor networks. Just some sensors can get observations of the target. A distributed estimator composing of Luenberger observers and consensus strategy is applied. Based on spectral radius analysis and algebraic graph theory, necessary conditions of distributed detectability are given for time-invariant and randomly switching networks, respectively. By applying Lyapunov functional analysis and solving a special LQR problem, sufficient detectability conditions are proposed for both networks. The sufficient conditions are composed of an explicit inequality concerning weights, topology switching probabilities and the eigenvalues of the target's system matrix. Simulation examples are given to illustrate the results.

关键词： Topology Network topology Sensors Switches Estimation Noise Loss measurement

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Study on short periodic solutions of a discretized second-order sliding-mode control system

Study on short periodic solutions of a discretized second-or...

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International Workshop on Variable Structure systems, VSS

作者： Xiangyu Wang Shihua Li Ministry of Education Key Laboratory of Measurement and Control of Complex Systems of Engineering Nanjing China

In this paper, short periodic solutions of a discretized second-order sliding-mode control system are investigated. Specifically, the existence and stability of short periodic solutions are analyzed. Moreover, the exp... 详细信息

关键词： Orbits Manifolds Stability analysis Educational institutions Sliding mode control Trajectory Switches

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Editorial tnnls special issues and editorial board changes

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IEEE Transactions on Neural Networks and Learning systems 2014年第1期25卷 1-8页

作者： Liu, Derong State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing 100190 China Department of Electrical and Computer Engineering University of Illinois at Chicago Chicago IL 60607 United States

An introduction is presented in which the editor discusses the theme of the periodical based on learning in nonstationary and evolving environments along with changes in the editorial board and also offers brief profi... 详细信息

关键词： LEARNING EDITORIAL boards (Publishing)

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State Estimation of Finite-State Hidden Markov Models Subject to Stochastically Event-triggered measurements

State Estimation of Finite-State Hidden Markov Models Subjec...

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IEEE Annual Conference on Decision and control

作者： Wentao Chen Junzheng Wang Ling Shi Dawei Shi State Key Laboratory of Intelligent Control and Decision of Complex Systems School of Automation Beijing Institute of Technology Beijing 100081 P.R. China Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong

ISBN: (纸本)9781479978878

We consider the event-triggered state estimation of a finite-state hidden Markov model with a general stochastic event-triggering condition. Utilizing the change of probability measure approach and the event-triggered measurement information available to the estimator, analytical expressions for the conditional probability distributions of the states are obtained, based on which the minimum mean square error event-based state estimates are further calculated. We show that the results also cover the case of packet dropout, under a special parameterization of the event-triggering conditions. With the results on state estimation, a closed-form expression of the average sensor-to-estimator communication rate is also presented. The effectiveness of the proposed results is illustrated by a numerical example and comparative simulations.

关键词： State estimation Hidden Markov models Event trigger Probability distribution Mean square error numerical example

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Motion comparison method combining segmented multi-Joint line graphs with the SIFT matching technique

Motion comparison method combining segmented multi-Joint lin...

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4th International Conference on Frontiers of Manufacturing Science and Measuring Technology, ICFMM 2014

作者： Zeng, Ming Ren, Hong Lin Meng, Qing Hao Chen, Chang Wei Ma, Shu Gen Tianjin Key Laboratory of Process Measurement and Control Institute of Robotics and Autonomous Systems School of Electrical Engineering and Automation Tianjin University Tianjin 300072 China

ISBN: (纸本)9783038351924

In this paper, an effective motion comparison method based on segmented multi-joint line graphs combined with the SIFT feature matching method is proposed. Firstly, the multi-joint 3D motion data are captured using the Kinect. Secondly, 3D motion data are normalized and distortion data are removed. Therefore, a 2D line graph can be obtained. Next, SIFT features of the 2D motion line graph are extracted. Finally, the line graphs are divided into several regions and then the comparison results can be calculated based on SIFT matching ratios between the tutor's local line graph and the trainee's local line graph. The experimental results show that the proposed method not only can easily deal with the several challenge problems in motion analysis, e.g., the problem of different rhythm of motions, the problem of a large amount of data, but also can provide detailed error correction cues. © (2014) Trans Tech Publications, Switzerland.

关键词： Motion analysis

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Recurrence characteristics analysis of near-Surface wind speed signal with different sampling frequencies

Recurrence characteristics analysis of near-Surface wind spe...

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4th International Conference on Frontiers of Manufacturing Science and Measuring Technology, ICFMM 2014

作者： Zeng, Ming Wu, Zhan Xie Meng, Qing Hao Li, Jing Hai Ma, Shu Gen Tianjin Key Laboratory of Process Measurement and Control Institute of Robotics and Autonomous Systems School of Electrical Engineering and Automation Tianjin University Tianjin 300072 China

ISBN: (纸本)9783038351924

The wind is the main factor to influence the propagation of gas in the atmosphere. Therefore, the wind signal obtained by anemometer will provide us valuable clues for searching gas leakage sources. In this paper, the Recurrence Plot (RP) and Recurrence Quantification Analysis (RQA) are applied to analyze the influence of recurrence characteristics of the wind speed time series under the condition of the same place, the same time period and with the sampling frequency of 1hz, 2hz, 4.2hz, 5hz, 8.3hz, 12.5hz and 16.7hz respectively. Research results show that when the sampling frequency is higher than 5hz, the trends of recurrence nature of different groups are basically unchanged. However, when the sampling frequency is set below 5hz, the original trend of recurrence nature is destroyed, because the recurrence characteristic curves obtained using different sampling frequencies appear cross or overlapping phenomena. The above results indicate that the anemometer will not be able to fully capture the detailed information in wind field when its sampling frequency is lower than 5hz. The recurrence characteristics analysis of the wind speed signals provides an important basis for the optimal selection of anemometer. © (2014) Trans Tech Publications, Switzerland.

关键词： Time series

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Biomechanical analysis of typical upper limb movements based on Kinect-LifeMOD

Biomechanical analysis of typical upper limb movements based...

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4th International Conference on Frontiers of Manufacturing Science and Measuring Technology, ICFMM 2014

作者： Zeng, Ming Chen, Chang Wei Meng, Qing Hao Ren, Hong Lin Ma, Shu Gen Tianjin Key Laboratory of Process Measurement and Control Institute of Robotics and Autonomous Systems School of Electrical Engineering and Automation Tianjin University Tianjin 300072 China

ISBN: (纸本)9783038351924

In traditional biomechanical analysis of upper limb, the high-precision motion data and lifelike human models are needed. It is obvious that those processes are costly and time-consuming. In this paper, a novel and simple combination method based on Kinect-LifeMOD is proposed. Firstly, the Microsoft Kinect (a latest depth sensor) is used to build a cheap and precise motion capture platform. Real-time and reliable key-node rotation data of human skeletons can be acquired by this motion capture system. Next, rotation data is converted into position data as the input of the LifeMOD software which can establish mathematical model of upper limb and execute biomechanical analysis automatically. The experimental results show that the proposed method could achieve the satisfactory performance. © (2014) Trans Tech Publications, Switzerland.

关键词： Biomechanics

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Differential spatial modulation in V2X

Differential spatial modulation in V2X

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European Conference on Antennas and Propagation, EuCAP

作者： Meng Zhang Xiang Cheng Liu-Qing Yang School of Electronics Engineering and Computer Science Peking University Beijing China National Mobile Communications Research Laboratory Southeast University Nanjing China State Key Laboratory of Management and Control for Complex Systems Institute of Automation Chinese Academy of Sciences Beijing China Qingdao Academy of Intelligent Industries Qingdao Shandong Province China

The rapid development of vehicle-to-vehicle and vehicle-to-infrastructure (V2X) communications calls for highly spectral efficient communication techniques under time-selective channels. Spatial modulation (SM) facilitates flexible trade-off between spectral and energy efficiency. In this paper, we propose a novel modulation technique based on SM for V2X, which discards the requirement of channel state information (CSI) at the receiver and exhibits enhanced robustness against time-selective fading and Doppler effects. Our proposed scheme tailors differential modulation to SM and is named differential spatial modulation (DSM). Monte Carlo simulations are carried out to demonstrate the advantage of the new scheme in terms of bit error rate (BER) performance for both point-to-point and dual-hop amplify-and-forward (AF) relaying systems in V2X channels.

关键词： Modulation Bit error rate Transmitting antennas Relays Vehicles MIMO Receiving antennas

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Asymptotical stabilization of linear distributed parameter switched systems

Asymptotical stabilization of linear distributed parameter s...

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第26届中国控制与决策会议

作者： Leping Bao Shumin Fei Key Laboratory of Measurement and Control of Complex Systems of Engineering Ministry of Education School of Automation Southeast University

In this paper, the asymptotical stabilization problem for ordinary differential equations switched systems has been extended to distributed parameter switched systems(DPSS) in Hilbert space. Based on semigroup and operator theory, sufficient conditions of asymptotical stabilization for linear DPSS are derived in linear operator inequalities(LOIs)framework. Being applied to three dimensional switched heat propagation equations, we transform the LOIs into the linear matrix inequalities(LMIs), which has the advantage of being numerically well tractable by using matlab software. In particular, the state feedback gain matrices are designed. Two examples are given to illustrate the proposed results.

关键词： Distributed parameter switched system,semigroup,Lyapunov function,asymptotical stabilization,linear operator inequalities.

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