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检索条件"机构=Science and Technology on Blind Signal Processing Laboratory"

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Electrical detection of single particle in cylindrical solid-state nanopores

Electrical detection of single particle in cylindrical solid...

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IEEE Conference on Electron Devices and Solid-State Circuits

作者： Yu Zhang Jun Luo Yansong Liu Minquan Li Chao Zhao Chengjun Huang Key Laboratory of Intelligent Computing and Signal Processing Anhui University China Key Laboratory of Microelectronics Device and Integrated Technology Institute of Microelectronics of Chinese Academy of Science Beijing China

This paper presented a new technique for electrical detection of single nanoparticle in a cylindrical solid-state nanopore by measuring the blockage ionic current change. Both numerical and analytical models were developed to simulate and optimize the electrical responses of the device when a single particle was passing through the nanopore. The effects of different nanopore geometries on nanoparticle detection performance were discussed, which could provide guidelines for the device fabrications and nanoparticle detection applications.

关键词： Conferences Electron devices Solid state circuits

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Attitude Control of a Quadrotor Using Model Free Based Sliding Model Controller

Attitude Control of a Quadrotor Using Model Free Based Slidi...

引用

International Conference on Control Systems and Computer science (CSCS)

作者： Haoping Wang Xuefei Ye Yang Tian Nicolai Christov Sino-French International Joint Laboratory of Automatic Control and Signal Processing (LaFCAS) Nanjing University of Science & Technology Nangjing China LaFCAS CRIsTAL Lille 1 University of Science and Technology Lille France

In this paper, a model free based sliding mode control (MFSMC) is developed to realize the attitude control of a quadrotor whose model contains the system uncertainties and external disturbances. Firstly, a model free based intelligent PD controller (iPD) which contains time-delay estimation is designed. The problem is that although the proposed design of the controller does not need to know the system model, but it exists the unknown dynamics estimation error. Then for the considered problem, the MFSMC is proposed. This referred controller which consists of three parts: the equivalent control law, exponent reaching law and correction control law, ensures the trajectories tracking. Finally, the proposed MFSMC method is validated on the quadrotor with system uncertainties and external disturbances and compared with classic PD and iPD control. The corresponding simulation results demonstrate the effectiveness and performance of the MFSMC controller against the controllers of iPD and PD.

关键词： Control systems

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A Broadband Polarization Insensitive Graphene Absorber with Wide Incident Angle

A Broadband Polarization Insensitive Graphene Absorber with ...

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2015 International Conference on Communication Problem-Solving(ICCP)

作者： Y.Wang Y.N.Jiang S.M.Li W.P.Cao X.Gao X.H.Yu R.Yuan Guangxi Key Laboratory of Wireless Wideband Communication & Signal Processing Guilin University of Electronic Technology Guangxi Experiment Center of Information Science School of Electrical and Information Engineering Guangxi University of Science and Technology

The development of radar technology is a serious threat to the stealth of aircraft. To decrease the radar cross section(RCS) and enhance the stealth ability of targets, the absorber can be used. Based on graphene in this paper, a broadband absorber is proposed. The absorption rate of the proposed absorber is more than 90% in the 2.1-9.0GHz range with the relative bandwidth of 123%. Moreover, it has the microwave absorbing properties of polarization insensitive and wide incident angle range.

关键词： graphene broadband absorber polarization insensitive

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A Bandwidth Broadened Pattern-Reconfigurable Antenna Based on Graphene

A Bandwidth Broadened Pattern-Reconfigurable Antenna Based o...

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2015 International Conference on Communication Problem-Solving(ICCP)

作者： R.Yuan Y.N.Jiang S.M.Li W.P.Cao X.Gao X.H.Yu Y.Wang Guangxi Key Laboratory of Wireless Wideband Communication & Signal Processing Guilin University of Electronic Technology Guangxi Experiment Center of Information Science School of Electrical and Information Engineering Guangxi University of Science and Technology

Based on graphene, this paper proposes a configuration of a bandwidth broadened pattern-reconfigurable antenna. The antenna is a monopole surrounded by a cylindrical graphene-based impedance surface coating, and the radiation pattern is dynamically controlled via graphene’s field effect by applying adequate bias voltages. This antenna can work in the directional mode over the entire azimuth plane or omnidirectional mode;correspondingly, its relative bandwidth can reach 67% and 50% respectively by the coupling of graphene-based impedance surface coating.

关键词： Graphene pattern-reconfigurable antenna impedance surface

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A novel high-capacity reversible data-hiding scheme using two steganographic images

A novel high-capacity reversible data-hiding scheme using tw...

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International Conference on BioMedical Engineering and Informatics (BMEI)

作者： You-Jing Lu Wan-Li Lyu School of Computer Science and Technology Anhui University Hefei China Key Laboratory of Intelligent Computing and Signal Processing of Ministry of Education Anhui University Hefei China

This paper proposes a novel reversible data-hiding scheme utilizing two steganographic images. The proposed method is able to hide more secret messages than other messages by studying the characters of embedded messages. We transformed the form of the secret message byte from 8 binary bits to 7-base digits, which was departed to 3-digit planes to allow for hiding more secret messages through use of an extensional key matrix M*. The horizontal and vertical coordinate of the key matrix M* ranges are from 0 to 255. Therefore, we use the pixel pairs in a cover image to help hide secret message bytes in the method proposed. In key matrix M*, a point can be located by a horizontal coordinate and a vertical coordinate, which are the exact paired pixels. After embedding data by using the coordinates in the key matrix and then obtaining two stego images, we can recover the cover image after extracting the embedded data. Experiments show that the method proposed can hide more pixels in an image and recover the image accurately with only a tiny decrease in image quality.

关键词： Image quality Visualization Histograms Mathematical model Data mining Matrix converters Computer science

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Improving the detection of mtbi via complexity analysis in resting - state magnetoencephalography

Improving the detection of mtbi via complexity analysis in r...

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IEEE International Workshop on Imaging Systems and Techniques (IST)

作者： Marios Antonakakis Stavros I. Dimitriadis Andrew C. Papanicolaou George Zouridakis Michalis Zervakis Digital Image and Signal Processing Laboratory School of Electronic and Computer Engineering Technical University of Crete Chania Greece Neuroinformatics Group Aristotle University Thessaloniki Greece Cardiff University Brain Research Imaging Centre (CUBRIC) School of Psychology Cardiff University Cardiff United Kingdom Departments of Pediatrics and Anatomy and Neurobiology University of Tennessee Health Science Center Memphis TN USA Neuroscience Institute Le Bonheur Children's Hospital Memphis TN USA Departments of Engineering Technology Computer Science Biomedical Engineering and Electrical and Computer Engineering University of Houston Houston TX USA

ISBN: (纸本)9781509018185

Diagnosis of mild Traumatic Brain Injury (mTBI) is difficult due to the variability of obvious brain lesions using imaging scans. A promising tool for exploring potential biomarkers for mTBI is magnetoencephalography which has the advantage of high spatial and temporal resolution. By adopting proper analytic tools from the field of symbolic dynamics like Lempel-Ziv complexity, we can objectively characterize neural network alterations compared to healthy control by enumerating the different patterns of a symbolic sequence. This procedure oversimplifies the rich information of brain activity captured via MEG. For that reason, we adopted neural-gas algorithm which can transform a time series into more than two symbols by learning brain dynamics with a small reconstructed error. The proposed analysis was applied to recordings of 30 mTBI patients and 50 normal controls in δ frequency band. Our results demonstrated that mTBI patients could be separated from normal controls with more than 97% classification accuracy based on high complexity regions corresponding to right frontal areas. In addition, a reverse relation between complexity and transition rate was demonstrated for both groups. These findings indicate that symbolic complexity could have a significant predictive value in the development of reliable biomarkers to help with the early detection of mTBI.

关键词： Complexity theory Time series analysis Sensitivity Integrated circuits Indexes Brain Laplace equations

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A sliding model control based on intelligent PID control for wind turbine system

A sliding model control based on intelligent PID control for...

引用

International Conference on Systems and Control (ICSC)

作者： Shanzhi Li Haoping Wang Yang Tian Abdel Aitouche Sino-French laboratory of Automatic Control and Signal Processing (LaFCAS) Nanjing University of Science and Technology China LaFCAS Lille University Nord of France Lille France

ISBN: (纸本)9781479983193

This paper is presented a sliding model control (SMC) based intelligent PID method for a variable speed-constant frequency wind turbine system. This method regards power fluctuation which it is affected by the turbine wind or other factors as disturbance. This controller has two components. Firstly, an intelligent PID controller is designed by estimating the disturbance and compensating them online. Further more, in order to decrease the effect of error estimation, an extra sliding model controller is designed for compensating it. This method has been tested by a 5MW wind turbine system by Matlab/Simulink platform. The results confirm that the proposed method is powerful for the active power and is superior in the respond time.

关键词： Mathematical model Wind turbines Rotors Stators Wind speed Reactive power Voltage control

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An Improved Algorithm Based On Reference Selection for Time Difference of Arrival Location

An Improved Algorithm Based On Reference Selection for Time ...

引用

International Congress on Image and signal processing

作者： Qiang Xu Yang Lei Jingmin Cao Hewen Wei Science and Technology On Blind Signal Processing Laboratory

ISBN: (纸本)9781479958368

Least Square (LS) estimation is a simple but not good enough for localization method which is widely used for target position estimation. The time difference of arrival (TDOA) location based on LS method needs to select a reference sensor to obtain a series of equations. Thus, the measured error of the selected first sensor will certainly influence the location accuracy. In our article, an algorithm based on select the primary sensor is proposed, which selects the primary station according the residual. New algorithm improves performs better than conventional method in harsh environment. Simulation shows that the location precise of new algorithm is much better than the other NLOS mitigation methods.

关键词： Reference selection LLS TDOA

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Discovery of ovarian cancer candidate genes using protein interaction information 11th

Discovery of ovarian cancer candidate genes using protein in...

引用

11th International Conference on Intelligent Computing, ICIC 2015

作者： Zhang, Di Wang, Qingbao Zhu, RongRong Li, Hai-Tao Zheng, Chun-Hou Xia, Junfeng Key Laboratory of Intelligent Computing and Signal Processing Ministry of Education Institute of Health Sciences School of Computer Science and Technology Anhui University Hefei Anhui230039 China Clinical Laboratory Center The First Affiliated Hospital Anhui University of Traditional Chinese Medicine Hefei Anhui230012 China College of Electrical Engineering and Automation Anhui University Hefei Anhui230601 China

ISBN: (纸本)9783319221854

Ovarian cancer (OVC) is one of the deadliest cancers in women. At present, effective clinical therapy for OVC is still limited. We adopted a computational method to identify OVC candidate genes based on subnetwork extraction algorithm in the protein interaction network. Of the final identified five genes, MSH3 and PIK3R3 genes have been reported to be implicated in OVC tumorigenesis, indicating that the method is effective, whereas the other three genes (MAPK8IP1, PICK1, and IQGAP3) might have potential roles in OVC development. The results provided a novel insight into identifying the OVC-related genes and exploring new methods for OVC therapy. © Springer International Publishing Switzerland 2015.

关键词： Proteins

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Proportional integral sliding mode observer for uncertain Takagi Sugeno systems with unknown inputs

Proportional integral sliding mode observer for uncertain Ta...

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International Conference on Modelling, Identification and Control (ICMIC)

作者： Ilyes Elleuch Atef Khedher Kamel Ben Othmen Research Laboratory in automatic signal processing and imaging Doctoral School: Sousse University Monastir Tunisia Research Laboratory: LARA Automatic ENIT Higher Institute of Applied Science and Technology Gafsa Tunis

This paper deals with the problem of state and faults estimation for nonlinear uncertain systems described by Takagi Sugeno structures (named multiple models). In this work, only actuator are considered, they are considered as unknown inputs. The state and faults estimation is made using a structure of sliding mode observer where an integral term is added. This structure of observer is named proportional integral sliding mode observer. The integral term permits the fault estimation. The observer convergence conditions are formulated in LMI form allowing to compute the observer gains. The proposed proportional integral sliding mode observer is applied in the case of a numerical example showing the efficiency of the fault and state estimation.

关键词： Observers Actuators Convergence Uncertainty Estimation error

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