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2010 Chinese Control and Decision Conference

作者： Xiaoqi Peng~(1,2),Jun Chen~(1,3),Hongyuan Shen~3 1.School of information Science and Engineering,Central South university,Changsha,410083,china 2.Department of information Science and Engineering,Hunan First Normal university,Changsha,410002,china 3.institute of information and Electrical Engineering,Hunan university of Science and technology,Xiangtan,411201,china

＜正＞Outlier detection can be treated as a part of the data preprocess or as the object of data *** is still no effective detection method for the high-dimensional nonlinear outlier *** paper presents an outlier detection method based on support vector machine（SVM）.A SVM model built by the clean sample set without outlier is used to predict the samples,when the error between the prediction-value and actual value exceeds the threshold,the sample is taken as an outlier,otherwise a normal *** present outlier detection method has been applied to analyze the practical copper-matte converting production *** results show that this method can efficiently and correctly detect the high dimensional nonlinear outlier sample and has considerable practical value.

关键词： Data Mining Outlier Detection Support Vector Machine Copper-matte Converting

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Compound Control with Hysteresis-band Switching for LOS Stabilization System

Compound Control with Hysteresis-band Switching for LOS Stab...

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2010 3rd IEEE International Conference on Computer Science and information technology—ICCSIT 2010

作者： Wei Ji Bo Xu and Jinliang Guo The School of Electrical and information Engineering Jiangsu university Zhenjiang china Qi Li Research institute of Automation Southeast university Nanjing china

The gyro stabilized platform control is required to isolate the line of sight （LOS） from the disturbance and vibration of carrier and ensure pointing and tracking for target in electro-optical tracking system. A compound adaptive fuzzy PID control with hysteresis-band switching is developed for this servo system with nonlinear property and some uncertainties. Here, in the adaptive fuzzy controller, the self-tuning factors are made to modify the parameters of fuzzy controller online, and a new learning algorithm of fuzzy rules modifier is proposed to adjust control efforts. The improved PID controller are adopted to restrain motor saturation and fulfil non-error control. The hysteresis-band switching （HBS） strategy is given to deal with jitter caused by single-point switching condition. The experimental results show that the proposed method can achieve perfect control performance and is proved to be effective in bating carrier disturbances within the scope of definite noise and sensitivity to acceleration.

关键词： Adaptive Fuzzy PID Hybrid Control Gyro Inertia Platform LOS Stabilization Hysteresis-band Switching

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Decentralized stabilization of large-scale systems with time delays

Decentralized stabilization of large-scale systems with time...

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2011 Chinese Control and Decision Conference（CCDC）

作者： Xiaoshi Xiao,Zhizhong Mao are with the Automation institute,College of information Science and Engineering,Northeastern university,Shenyang,Liaoning 110819,china

Based on Lyapunov-Krasovskii functional method,the problem of decentralized stabilization of large-scale systems with nonlinear time-delayed interconnections and uncertainties is investigated.A decentralized state-feedback controller is proposed to guarantee the asymptotic stability of the resulting closed-loop systems when bound functions of time-delayed interconnections are *** case one can not determine the bound functions of the nonlinear time-delayed interconnections,an adaptive fuzzy controller is put forward to guarantee the stability of the resulting closed-loop large-scale ***,a numerical is provided to demonstrate the efficacy of the proposed control schemes.

关键词： Decentralized stabilization adaptive fuzzy control large-scale systems time delay

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A Family of Reliable H_∞ State-Feedback Controllers for nonlinear Systems with Strictly Redundant Actuators: the Full information Case

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Journal of Systems Science and Systems Engineering 2001年第3期13卷 350-358页

作者： FU Yu-sun,\ TIAN Zuo-hua,\ SHI Song-jiao institute of Automation, Shanghai Jiaotong university, Shanghai 200030, china institute of Automation Shanghai Jiaotong University Shanghai 200030 China

The paper is concerned with the reliable H ∞ state feedback control and controller parameterization problem for nonlinear systems with strictly redundant actuators. Based on Hamilton Jacobi inequality, the sufficient condition is presented such that the reliable control problem is resolved, and a family of controllers is given such that the resulting closed loop systems are asymptotically stable and their L 2 gain is limitable not only when all actuators are operational but also when any one,but only one of actuators experiences an outage. The results of this paper provide a deep insight into the synthesis of the reliable nonlinear H ∞ state feedback.

关键词： nonlinear system H ∞ theory reliable control Hamilton Jacobi inequality

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维普期刊数据库

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MODELING AND DESIGNING OF A nonlinear TEMPERATURE-HUMIDITY CONTROLLER USING IN MUSHROOM-DRYING MACHINE

MODELING AND DESIGNING OF A NONLINEAR TEMPERATURE-HUMIDITY C...

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The Second IFIP International Conference on Computer and Computing Technologies in Agriculture (CCTA2008)

作者： Xiuhua Wu* Haiyan Luo Minhui Shi information and Electrical Engineering institute Shenyang Agricultural university Shenyang 110161 china

Drying-process of many kinds of farm produce in a close room, such as mushroom-drying machine, is generally a complicated nonlinear and time- delay cause, in which the temperature and the humidity are the main controlled elements. The accurate controlling of the temperature and humidity is always an interesting problem. It’s difficult and very important to make a more accurate mathematical model about the varying of the two. A math model was put forward after considering many aspects and analyzing the actual working circumstance in this paper. Form the model it can be seen that the changes of temperature and humidity in drying machine are not simple linear but an affine nonlinear process. Controlling the process exactly is the key that influences the quality of the dried mushroom. In this paper, the differential geometry theories and methods are used to analyze and solve the model of these small- environment elements. And at last a kind of nonlinear controller which satisfied the optimal quadratic performance index is designed. It can be proved more feasible and practical than the conventional controlling.

关键词： nonlinear controller mathematical model temperature-humidity control mushroom-drying machine

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Stability analysis and bifurcation control of generalized phytoplankton—zooplankton system

Stability analysis and bifurcation control of generalized ph...

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2011 Chinese Control and Decision Conference（CCDC）

作者： Qingling Zhang is with the institute of system science,Northeastern university,Shenyang,china.Yugen Chang is with the institute of system science,Northeastern university,Shenyang,china.Hong Niu is with the institute of system science,Northeastern university,Shenyang,china.Chao Liu is with the Department of information and Computational Science,Northeastern university at Qinhuangdao,Qinhuangdao,china.

In this article,a generalized Biological dynamical model of algal blooms is *** mathematical model consists of non-toxic phytoplankton,toxin producing phytoplankton,zooplankton with the economic values and harvest effort on *** accordance with the knowledge of nonlinear dynamic system theory,differential-algebraic system theory and control theory investigates the stability of the model around the boundary equilibrium points and unique interior equilibrium point,and studies the dynamical behavior of the system near the positive equilibrium point and its control ***,using MATLAB software,numerical simulation illustrates the accuracy of the results.

关键词： Differential-algebraic system Positive equilibrium point Jacobian matrix

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Identification of Hammerstein Models Based on Online Support Vector Regression

Identification of Hammerstein Models Based on Online Support...

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第三十届中国控制会议

作者： WANG Xianfang~1,ZHENG Yanbin~1,ZHANG Haiyan~2 1.School of Computer and information technology,Henan Normal university,Xinxiang 453007,P.R.china 2.School of information and Engineering,Henan institute of Science and technology,Xinxiang 453003,P.R.china

＜正＞This paper presents a method for the identification of Hammerstein models based on online Support Vector Regression （OSVR）.First,the intermediate linear model was established through converting the nonlinear equations of Hammerstein to a class of linear one by the function ***,training samples for intermediate linear model were obtained by operating measured data synthetically,and coefficients of the intermediate model were obtained by the OSVR ***,through the relations of the coefficients of intermediate model and that of Hammerstein model,the nonlinear static part and linear dynamic part were identified ***,the efficiency of the proposed algorithm was demonstrated by simulation examples.

关键词： Identification Parameter estimation Hammerstein models OSVR

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用简化模糊规则数的方法设计模糊PID控制系统

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石油大学学报（自然科学版） 2004年第5期28卷 126-130页

作者：陆奎汤培榕杨为民安徽理工大学计算机系安徽淮南232001 中国矿业大学机电与信息工程学院信息电子系北京100083 中国电子科技集团公司第八研究所安徽淮南232001

在对常规模糊控制器和PID控制器研究的基础上,提出了一种最简单的模糊PID控制系统。该系统基于T S模型,借助于线性系统理论解决非线性系统设计中的问题,用2个二维的模糊控制器或二维模糊控制器加上积分环节来替代三维模糊PID控制系统,... 详细信息

在对常规模糊控制器和PID控制器研究的基础上,提出了一种最简单的模糊PID控制系统。该系统基于T S模型,借助于线性系统理论解决非线性系统设计中的问题,用2个二维的模糊控制器或二维模糊控制器加上积分环节来替代三维模糊PID控制系统,大大简化了模糊PID控制系统的设计。仿真结果表明,这种模糊PID控制系统结构简单,规则数少,稳定性高。

关键词：模糊PID控制模糊控制器模糊规则二维模糊控制线性系统理论 T-S模型仿真结果积分非线性系统简化

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维普期刊数据库

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Spectra of spontaneous Raman scattering in taper-drawn micro/nano-fibers

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Chinese Physics B 2016年第12期25卷 266-270页

作者：徐颖鑫崔亮李小英郭骋李宇航徐忠扬王力军方伟 Department of Optical Engineering Zhejiang University College of Precision Instrument and Opto-electronics Engineering Tianjin UniversityKey Laboratory of Optoelectronics Information Technology of Ministry of Education Joint institute for Measurement Science Tsinghua University

We study the spontaneous Raman scattering （RS） in taper-drawn micro/nano-fibers （MNFs） by employing the photon counting technique. The spectra of RS in five MNFs, which are fabricated by using different heating flames （hydrogen flame or butane flame） and with different diameters, are measured within a frequency shift range of 1435 cm- 1_3200 cm- 1. From the measured spectra, we observe the RS peaks originated from silica and a unique RS peak with a frequency shift of - 2905 cm-1 （- 87.2 THz）. Unlike the former ones, the latter one is not observable in conventional optical fibers. Furthermore, the unique peak becomes obvious and starts to rapidly increase with the decrease of the diameter of MNFs when the diameter is smaller than 2 μm, and the intensity of the unique peak significantly depends on the heating flame used in the fabricating process. Our investigation is useful for the entanglement generation or optical sensing using taper-drawn MNFs.

关键词： nonlinear optics micro/nano-fibers Raman scattering

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Feature Extraction of Somatosensory Evoked Potentials Based on ICA for classification of External Tactile Stimuli in rat

Feature Extraction of Somatosensory Evoked Potentials Based ...

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2009 9th International Conference on Electronic Measurement & Instruments（ICEMI’2009）

作者： YaoMing Yu 1 RongChin Lo 2 (1 institute of Computer and Communication Engineering National Taipei university of technology Taiwan china) (2 Department of Electronic Engineering National Taipei university of technology Taiwan china)

Four neural signals are recorded by without stimulation, by stimulation using a toothbrush, pen shaft and needle under an anesthetized rat. First, spectral subtraction is used to reduce noise and the nonlinear energy operator is adopted to detect spikes. Then, independent component analysis is performed with dynamic dimension increase to extract the features and form a feature vector. Finally, k-means is employed to group the feature vector into different clusters. These four various evoked potentials are separated into respective cluster according to differential percentage of 100%, 67%, 43%, and 73% individually. The information of monitoring subsystem is applied to assist us in proving of experimental results. The presented methods are successfully utilized to extract the features from various evoked potentials and distinguish the stimulants from different sensory signals.

关键词： Intracortical Somatosensory evoked potential (SEP) nonlinear energy operator (NEO) Independent component analysis (ICA) Dynamic dimension increase (DDI)

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