检索结果-内蒙古大学图书馆

Annual Conference of Industrial Electronics Society

作者： Kiran Kumari Bijnan Bandyopadhyay Abhisek K. Behera Johann Reger Systems and Control Engineering Indian Institute of Technology Bombay Mumbai India Computer Science and Automation Department Technische Universität Ilmenau Ilmenau Germany

The paper presents an event-triggering based sliding mode control law for delta operator systems with disturbance. The discrete domain representation of a system using shift operator becomes numerically ill-conditioned at very high sampling rates. To circumvent this problem, the system is represented using delta operator. The delta operator creates a rapprochement between continuous-time and discrete-time system model at very high sampling rates. A discrete-time sliding mode (DTSM) control law is developed to achieve robustness against external disturbances. Further to reduce the resource utilization, an event-triggered DTSM control law is proposed such that the closed loop system is stable. Due to the inherent discrete nature of the control there is no accumulation of triggering instants at any instant of time. Hence the zeno free execution of the control updating instants is always guaranteed. Simulation results are also shown to illustrate the effectiveness of the proposed method.

关键词： Sliding mode control Trajectory Discrete-time systems Manifolds Numerical models Robustness

来源：评论

学校读者我要写书评

暂无评论

An Initial Research:Towards Accurate Pitch Extraction for Speech Synthesis Based on BLSTM

An Initial Research:Towards Accurate Pitch Extraction for Sp...

引用

2016 IEEE 13th International Conference on Signal Processing（ICSP2016）

作者： Yibin Zheng Zhengqi Wen Bin Liu Ya Li Jianhua Tao National Laboratory of Pattern Recognition Institute of AutomationChinese Academy Sciences School of Computer and Control Engineering University of Chinese Academy of Sciences CAS Center for Excellence in Brain Science and Intelligence Technology Institute of AutomationChinese Academy Sciences

Accurate pitch extraction from speech is important but challenging problem for speech synthesis. However, the additive nature and long-term suprasegmental property of pitch features have not been fully exploited in most of the existing pitch estimators as they are operated frame by frame. As a result, they would cause some inherent discontinuities, such as double/half F0 errors and unvoiced/voiced(U/V) error. This would adversely affect the quality of synthetic speech as well as the expressiveness of the prosody information. In this paper, we explore the novel use of multi-tasks(Task 1: U/V;Task 2: Pitch) bidirectional long short-term memory recurrent neural network(BLSTM) to model the pitch and voicing decision simultaneously in a unified framework. The features used in this study are extracted from the frequency domain. We compute the log-frequency power spectrogram and then normalize to the long-term speech spectrum to attenuate noises. A filter is then used to enhance the harmonicity. Experiments show that the proposed approach substantially outperforms RAPT, which behaves the best in clean condition. Besides, our proposed approach can even work well with a certain level of background noise.

关键词： pitch extraction voicing decision BLSTM logfrequency power spectrogram speech synthesis

来源：评论

学校读者我要写书评

暂无评论

Corrigendum: Dielectric cross-shaped-resonator-based metasurface for vortex beam generation at mid-IR and THz wavelengths (Nanophotonics (2019) 8:7 (1263–1270) DOI: 10.1515/nanoph-2019-0112)

引用

Nanophotonics 2019年

作者： Dharmavarapu, Raghu Izumi, Ken-ichi Katayama, Ikufumi Ng, Soon Hock Vongsvivut, Jitraporn Tobin, Mark J. Kuchmizhak, Aleksandr Nishijima, Yoshiaki Bhattacharya, Shanti Juodkazis, Saulius Centre for NEMS and Nanophotonics (CNNP) Department of Electrical Engineering Indian Institute of Technology Madras Chennai 600036 India Centre for Micro-Photonics Faculty of Science Engineering and Technology Swinburne University of Technology Hawthorn VIC 3122 Australia Melbourne Centre for Nanofabrication ANFF 151 Wellington Road Clayton VIC 3168 Australia Physics Department Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan Infrared Microspectroscopy Beamline Australian Synchrotron Clayton VIC 3168 Australia Institute of Automation and Control Processes Far Eastern Branch Russian Academy of Sciences Vladivostok 690041 Russia Far Eastern Federal University Vladivostok 690090 Russia Department of Electrical and Computer Engineering Graduate School of Engineering Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan Institute of Advanced Sciences Yokohama National University 79-5 Tokiwadai Hodogaya-ku Yokohama 240-8501 Japan Tokyo Tech World Research Hub Initiative (WRHI) School of Materials and Chemical Technology Tokyo Institute of Technology 2-12-1 Ookayama Meguro-ku Tokyo 152-8550 Japan

There was a mistake in the grant number used in the recently published paper (DOI: https://***/10.1515/ nanoph-2019-0112. Published Online: 2019-07-09). The text should read: A.K. is grateful for support via the Russian Science Foundation (grant no. 17-19-01325), and R.D. thanks the IIT Madras-Swinburne joint PhD program. © 2019 De Gruyter. All rights reserved.

关键词：

来源：评论

学校读者我要写书评

暂无评论

An Augmented Estimation of Distribution Algorithm For Multi-Carpooling Problem With Time Window

An Augmented Estimation of Distribution Algorithm For Multi-...

引用

IEEE Vehicular Technology Conference

作者： Fang Zhang Z. J. Yang Y. Wang Fangjun Kuang School of Computer and Communication Engineering Liaoning Shihua University Lab. of Networked Control Systems Shenyang Institute of Automation Chinese Academy of Sciences University of Stuttgart

ISBN: (纸本)9781509016990

A multi-carpooling model is proposed for the multi-vehicle carpooling problem in distributed parallel computing environment. A two-stage stochastic optimization of the estimation of distribution algorithm solves the optimum of the multi-carpooling problem with a carpooling probabilistic matrix. A ridable matrix initiates the carpooling probabilistic matrix, and the carpooling probabilistic matrix continues updating during the optimization. The carpooling model mines efficient and compromised ridesharing routes for shared riders by the optimization iterations. Experimental results indicate that the carpooling model has the characteristics of effective and efficient traffic including shorter waiting time, more passenger load, and less average riding distance.

关键词： Carpooling problem Pickup and delivery problem Estimation of distribution algorithm Stochastic optimization Allocation Algorithm CARPOOLING delivery problem Time windows

来源：评论

学校读者我要写书评

暂无评论

control reconfiguration of physically interconnected systems by decentralized virtual actuators 9

Control reconfiguration of physically interconnected systems...

引用

9th IFAC Symposium on Fault Detection, Supervision and Safety for Technical Processes, SAFEPROCESS 2015

作者： Vey, D. Hügging, S. Bodenburg, S. Lunze, J. Institute for Automation and Computer Control Ruhr-Universität Bochum Bochum Germany

This paper presents a new method for decentralized control reconfiguration after actuator failures in physically interconnected systems by decentralized linear virtual actuators (DELVA). In a decentralized control system, the direct application of the design method for linear virtual actuators (LVA) based on the model of the overall system results in a centralized reconfigured controller. This paper introduces an alternative reconfiguration method that reconfigures only the faulty subsystem, retains the decentralized control structure and guarantees stability for the reconfigured overall system. Depending on reconfigurability conditions for the faulty subsystem, different DELVAs, including appropriate design rules, are presented. The main result is a design method for a DELVA that stabilizes the reconfigured control loop without requiring an information exchange over a digital network. The DELVA is illustrated by an application to a thermo-fluid process. © 2015, IFAC (International Federation of Automatic control) Hosting by Elsevier Ltd. All rights reserved.

关键词： Fault tolerance

来源：评论

学校读者我要写书评

暂无评论

Social role clustering with topic model

Social role clustering with topic model

引用

IEEE International Conference on Intelligence and Security Informatics, ISI

作者： Jie Bai Linjing Li Daniel Zeng Junjie Lin The State Key Laboratory of Management and Control for Complex Systems Institute of Automation China School of Computer and Control Engineering University of Chinese Academy of Sciences China Department of Management of Information Systems The University of Arizona USA

ISBN: (纸本)9781509038664

In this paper, we propose a new role analyzing paradigm for social networks enlightened by topic modeling, which can be adopted as a primitive building block in various security related tasks, such as hidden community finding, important person recognizing and so on. We first present the social network under analyzing as a heterogeneous network constructed by both the users and the subjects discussed among them. We then view this network in a Bag-of-Users schema, which mimics its classical Bag-of-Words counterpart. In this schema, the subjects discussed are treated as “documents” while the users are treated as “words” which construct the “documents”. Based on this novel presentation, we finally apply topic modeling technology to perform the social role clustering. Experiments on a practical security-related social network dataset prove the effectiveness of our approach.

关键词： Social network services Heterogeneous networks Analytical models Computational modeling Finance Security Data models

来源：评论

学校读者我要写书评

暂无评论

LQG control for Networked control Systems in the Presence of Data Packet Drops

LQG Control for Networked Control Systems in the Presence of...

引用

第35届中国控制会议

作者： Kun Xu Jianming Zhou Fei Liu Guoxiang Gu Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education) Institute of AutomationJiangnan University School of Electrical Engineering and Computer Science Louisiana State University

ISBN: (纸本)9781509009107

We study the linear-quadratic-Gaussian(LQG) control for multiple-input/multiple-output(MIMO) discrete-time networked control systems(NCSs) in the presence of data packet drops that are modeled as multiplicative noises,assumed to be white *** will first analyze the mean square(MS) stability problem for MIMO feedback systems in the presence of the multiplicative noises,and provide a new useful MS stability *** LQG control under packet data drops will then be studied in which the critical probability of the received data packet can be computed by solving a set of linear matrices inequalities(LMIs),beyond which the modified algebraic Riccati equations,associated with the LQG control,admit the stabilizing *** a numerical example from the known literature is employed to illustrate our results.

关键词： Networked control system LQG control data packet drop

来源：评论

学校读者我要写书评

暂无评论

control reconfiguration of full-state linearizable systems by a virtual actuator

引用

IFAC-PapersOnLine 2015年第21期48卷 339-344页

作者： Vey, D. Lunze, J. Žáčeková, E. Pčolka, M. Šebek, M. Institute for Automation and Computer Control Ruhr-Universität Bochum Bochum Germany Department of Control Engineering Czech Technical Uiversity in Prague Prague Czech Republic

This paper presents a new method for control reconfiguration of nonlinear, input-affine systems subject to actuator failures. For full-state linearizable systems it is shown that after the occurrence of an actuator failure the linearizing feedback has to be adapted to the failure case. In a second step, the reconfiguration of the re-linearized system can be accomplished by means of a static linear virtual actuator. An interesting observation is the fact that the faulty system stays reconfigurable as long as there is one actuator left in the faulty plant. This paper illustrates the method by considering a fluid process. © 2015

关键词： Feedback linearization

来源：评论

学校读者我要写书评

暂无评论

Real time Object Tracking based on Local Texture Feature with Correlation Filter

Real time Object Tracking based on Local Texture Feature wit...

引用

2016 IEEE International Conference on Digital Signal Processing, DSP 2016

作者： Qiao, Meina Wang, Tian Dong, Yuan Shi, Jingang Teng, Jing Snoussi, Hichem School of Automation Science and Electrical Engineering Beihang University Beijing China School of Electronic and Control Engineering Chang'An University Shaanxi Xi'an China School of Electronic and Information Engineering Xi'An JiaotongUniversity Shaanxi Xi'an China School of Control and Computer Engineering North China Electric Power University Beijing China Institute Charles Delaunay-LM2S-UMR STMR 6279 CNRS University of Technology of Troyes France

ISBN: (纸本)9781509041657

Object tracking is a fundamental problem in computer vision, therefore attracts many researchers and there has been many influential algorithms in the list few years. A good feature descriptor is half of the success. In this paper, we propose an effective tracking algorithm based on texture feature with correlation filter. We improve the tracking precision by Haar-like feature and speed it up via discrete Fourier transform. The feature which is a good representation of the target can be obtained via dense sampling. What is more important is that the feature containing a great deal of information of the target appears only in the form of low-dimension. With the property of circluant matrix, we can translate the processes of training and testing into Fourier domain, which can cut the computation and reduce the time complexity. Our algorithm is proved to have better performance especially in deformation and rotation in the benchmark datasets. © 2016 IEEE.

关键词： Discrete Fourier transforms

来源：评论

学校读者我要写书评

暂无评论

AR and ARMA spectral analysis of suspension system of a commercial city bus

AR and ARMA spectral analysis of suspension system of a comm...

引用

International Symposium on Computational Intelligence and Informatics

作者： Ferenc Szauter György Istenes Gábor Rödönyi Széchenyi István University Research Center of Vehicle Industry Gyór Hungary Systems and Control Laboratory Computer and Automation Research Institute of Hungarian Academy of Sciences

Concerning the increasing demand for intelligent and efficient urban vehicle systems with low cost maintainability and high passenger comfort, reliable methods are needed to model and to evaluate the imposed performances. The measurements, vibrations emerging on the wheels and the body, that has ben taken on a city bus are analyzed in the frequency domain. In this paper a parametric spectral analysis (AR/ARMA method) of the suspension system of a commercial city bus is presented. The goal of the analysis is to find the right structure for the systems. Parametric methods used in this paper justify and extend the results obtained by non-parametric ones and provide more accurate results for vibration analysis. One of the main conclusions of the investigations is that the quarter-car model structure based on first principles does not reflect the true frequency domain behavior of the system. Thus the identification of the physical model must be complemented with a suitable uncertainty modeling and classification.

关键词： Roads Suspensions Spectral analysis Data models Urban areas Autoregressive processes Estimation

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：