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Bearings-only multi-sensor multi-target tracking based on rao-blackwellized Monte Carlo data association

Bearings-only multi-sensor multi-target tracking based on ra...

引用

作者： Wang, Yazhao Jia, Yingmin Du, Junping Yu, Fashan Beijing 100191 China Beijing 100191 China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo 454000 Henan China

ISBN: (纸本)9787894631046

This paper addresses the problem of tracking multiple targets using multi-sensor bearings-only measurements in the presence of noise and clutter. The Rao-Blackwellized Monte Carlo data association (RBMCDA) scheme and the unscented Kalman filter (UKF) are applied to solve the problems of uncertain association and nonlinear filtering, respectively. In particular, the sensors are assumed to move back and forth alternately. Simulation results show that the filtering algorithm produces reliable position estimates under single and multiple tracking scenarios.

关键词： Kalman filters

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Mobile sensing and simultaneously node localization in wireless sensor networks for human motion tracking

Mobile sensing and simultaneously node localization in wirel...

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11th International Conference on Control, Automation, Robotics and Vision, ICARCV 2010

作者： Zhang, Sen Xiao, Wendong Gong, Jun Ang Jr., Marcelo H. Tham, Chen Khong Tham, Ronny Quin Fai School of Mechanical and Aeronautical Engineering Singapore Polytechnic 500 Dover Road Singapore 139651 Singapore Networking Protocols Department Institute for Infocomm Research 21 Heng Mui Keng Terrace Singapore 119613 Singapore School of Information and Science Engineering Northeastern University Heping District Shenyang 110004 China Department of Mechanical Engineering National University of Singapore 9 Engineering Drive 1 Singapore 117576 Singapore Department of Electrical and Computer Engineering National University of Singapore 4 Engineering Drive 3 Singapore 117576 Singapore

ISBN: (纸本)9781424478132

This paper exploits optimal position of the mobile sensor to improve the target tracking performance of wireless sensor networks and simultaneously localize both of the static sensor nodes and mobile sensor nodes when tracking the human motion. In our approach, mobile sensors collaborate with static sensors and move optimally to achieve the required detection performance. The accuracy of final tracking result is then improved as the measurements of mobile sensors have higher signal-to-noise ratios after the movement. Specifically, we can simultaneously localize the mobile sensor and static sensors position when localizing the human's position based on augmented extended Kalman filters (EKF). In the algorithm, we develop a sensor movement optimization algorithm that achieves near-optimal system tracking performance. We also presented an sensor nodes management scheme in order to deduce the computation complexity when localizing the static sensor nodes. The effectiveness of our approach is validated by extensive simulations. ©2010 IEEE.

关键词： Sensor nodes

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SVM-based spectral matching for metabolite identification

SVM-based spectral matching for metabolite identification

引用

Annual International Conference of the IEEE engineering in Medicine and Biology Society (EMBC)

作者： Bin Zhou Amrita K. Cheema Habtom W. Ressom Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University Falls Church VA USA Department of Oncology George town University DC USA

Mass spectrometry-based metabolomics is getting mature and playing an ever important role in the systematic understanding of biological process in conjunction with other members of “-omics” family. However, the identification of metabolites in untargeted metabolomics profiling remains a challenge. In this paper, we propose a support vector machine (SVM)-based spectral matching algorithm to combine multiple similarity measures for accurate identification of metabolites. We compared the performance of this approach with several existing spectral matching algorithms on a spectral library we constructed. The results demonstrate that our proposed method is very promising in identifying metabolites in the face of data heterogeneity caused by different experimental parameters and platforms.

关键词： Correlation Support vector machines Databases Metabolomics Libraries Compounds Accuracy

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Ad hoc routing protocols optimization based on Orchestra

Ad hoc routing protocols optimization based on Orchestra

引用

International Conference on computer Science and Information Technology (CSIT)

作者： Siyu Zhan Yongxiang Peng Yaling Yang Jianping Li School of Computer Science and Engineering University of Electronic Science and Technology Sichuan China ECE Department Virginia Technology VA USA Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University VA USA

关键词： Routing protocols Engines Artificial neural networks Genetics Routing Maintenance engineering

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An easy, simple, and flexible control scheme for a three-phase grid-tie inverter system

An easy, simple, and flexible control scheme for a three-pha...

引用

IEEE Energy Conversion Congress and Exposition, ECCE

作者： Sung-Yeul Park Jih-Sheng Lai Woo-Cheol Lee Department Electrical & Computer Engineering University of Connecticut Storrs CT USA Future Energy Electronics Center Virginia Polytechnic Institute and State University Blacksburg VA USA Department of Electrical Engineering Hankyong National University Anseong South Korea

This paper proposed an easy, simple, and flexible control scheme for a three-phase grid-tie inverter system. A half-bridge single-phase grid-tie inverter was designed with a proportional-resonant control, an admittance compensator, and scalar control scheme. This single-phase control method was expanded in a three-phase grid-tie inverter system with duplicating three individual phases with 120° apart. Here are several benefits of the proposed control scheme: (1) it is easy to design by applying single-phase grid-tie inverter control method, (2) it requires less computation burden than that of the conventional three phase control scheme, (3) it provides either a constant power or a constant current to the utility grid with regardless three-phase grid voltage conditions, (4) it provides easily an active and reactive power, (5) it can be designed with a modular manner. A 3-kW power conditioning system has been built and tested in order to verify simulation results and experimental results.

关键词： Inverters Current control Voltage control Admittance Conferences Renewable energy resources

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An open architecture for the routing protocols design in ad hoc networks

An open architecture for the routing protocols design in ad ...

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International Conference on computer Science and Information Technology (CSIT)

A huge number of routing protocols have been proposed for ad hoc networks to improve the networks' performance. Because of the large number of designs, it's difficult to track all the designs and choose the optimal protocol for an ad hoc network under various scenarios. In addition, it is not clear if any of the original design ideas in the huge number of existing works can be combined to form new and better routing systems. To address this challenge, in this paper, a new open architecture is proposed, called Orchestra, which aims to bring a great change to the current design process of ad hoc routing protocols. The architecture can automatically assemble and test of a great variety of routing designs with high flexibility and compatibility by the help of routing algebra. Furthermore, it can also be combined with other algorithms like genetic algorithm to find the most suitable protocol design for a certain network scenario. The performance of the existing routing protocols implemented in Orchestra is as same as their original version in ns2, as which is shown in our simulation result.

关键词： Routing protocols Routing

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New resampling algorithm for generic particle filters

New resampling algorithm for generic particle filters

引用

作者： Fu, X. Jia, Y. Du, J. Yu, F. Beijing 100191 China Ministry of Education Beijing 100191 China Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo 454000 Henan China

ISBN: (纸本)9781424474264

This paper is devoted to the resampling problem of particle filters. We firstly demonstrate the performance of classical Resampling algorithm (also called as systematic resampling algorithm) using a novel metaphor, through which the existing defects of Resampling algorithm is vividly reflected simultaneously. In order to avoid these defects, the exquisite resampling (ER) algorithm is induced which involves some exquisite actions such as comparing the weights by stages and generating the new particles based on quasi-Monte Carlo method. Simulations indicate that the proposed ER algorithm can reduce the sample impoverishment effectively and improve the accuracy of estimation evidently, which confirm that ER algorithm is a competitive alternative to Resampling algorithm. © 2010 AACC.

关键词： Defects

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Analysis of two robust learning control schemes in the presence of random iteration-varying noise

Analysis of two robust learning control schemes in the prese...

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作者： Meng, Deyuan Jia, Yingmin Du, Junping Yu, Fashan Beijing 100191 China Ministry of Education Beijing China Beijing Key Laboratory of Intelligent Telecommunications Software and Multimedia School of Computer Science and Technology Beijing University of Posts and Telecommunications Beijing 100876 China School of Electrical Engineering and Automation Henan Polytechnic University Jiaozuo 454000 Henan China

ISBN: (纸本)9781424474264

This paper deals with the design problem of robust iterative learning control (ILC), in the presence of noise that is varying randomly from iteration to iteration. Two ILC schemes are considered: one adopts the previous iteration tracking error (PITE) and the other adopts the current iteration tracking error (CITE), in the updating law. For both schemes, the convergence results are obtained by using a frequency-domain approach, and a comparison between them is presented from the viewpoints of the convergence condition, robustness against plant uncertainty, and delay compensation. It shows that sufficient conditions can be derived to bound the tracking error and make its expectation monotonically convergent in the sense of L2-norm, which work effectively with robustness for all admissible plant uncertainties. Furthermore, the sufficient conditions for both schemes can also be formulated in terms of two complementary functions, which do not depend on the delay time as well as the plant uncertainty and, thus, make them convenient to be checked and solved using the frequency-domain tools. Numerical simulations are included to illustrate the effectiveness of the two proposed ILC schemes. © 2010 AACC.

关键词： Two term control systems

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Derivation of boost-buck converter based high-efficiency robust PV inverter

Derivation of boost-buck converter based high-efficiency rob...

引用

IEEE Energy Conversion Congress and Exposition, ECCE

作者： Zheng Zhao Ming Xu Qiaoliang Chen Jih-Sheng Lai Younghoon Cho The Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University Blacksburg VA USA FSP-Powerland Technology Inc. China

A single-phase grid connected transformerless PV inverter for residential application is presented. The inverter is derived from a boost cascaded with buck converter along with a line frequency unfolding circuit. High efficiency can be achieved because the converter allows the use of power MOSFET and ultra fast reverse recovery diode, which also features a robust structure because the phase-leg does not have shoot-through issue. By interleaving multiple phases, the ripple can be reduced, and thus the inductor size can also be reduced. This paper begins with theoretical analysis and modeling of this boost-buck converter based inverter to define the operation limit and to design the closed-loop controller. A two-phase interleaved inverter is then designed accordingly. Finally, the simulation and experiment results are shown to verify the concept.

关键词： Inverters Converters Photovoltaic systems Inductors Simulation Resonant frequency Voltage control

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Physical Layer Authentication Watermarks through Synthetic Channel Emulation

Physical Layer Authentication Watermarks through Synthetic C...

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IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, DySPAN

作者： Nate Goergen T. Charles Clancy Timothy R. Newman Electrical and Computer Engineering University of Maryland College Park MD USA Wireless@Virginia Tech Virginia Polytechnic and State Institution Blacksburg VA USA

We present an authentication device allowing for the validation of wireless transmissions by means of a watermark signal applied at the physical layer, and demonstrate how the method may be applied to digital broadcast television signals. The novel watermarking approach presented conveys the authentication signal through explicit emulation of innocuous channel responses, further preventing Primary User Emulation attacks in Dynamic Spectrum Access theaters. The undesirable effects of the watermark signal design are removed by the receiver by traditional channel equalization practices, resulting in nearly zero impact to the bit error rate (BER) of the primary signal received. The proposed mechanism may be implemented without modification to existing Digital Television (DTV) transmission equipment using a retrofitting approach, and does not require the modification of existing receivers or protocols. A key benefit of the proposed method is that the authentication signal may be received at a BER much lower than the primary-signal, all within original transmission power and bandwidth constraints. We discuss physical layer details of the new watermarking method, and demonstrate how proven cryptographic authentication measures may be applied to the problem.

关键词： Physical layer Authentication Watermarking Emulation Bit error rate Digital TV TV broadcasting Signal design TV receivers Cryptographic protocols

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