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检索条件"作者=china 2.school of control science and engineering"

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Adaptive Parallel Simultaneous Stabilization of Two Nonlinear Descriptor Systems via Hamiltonian Function Method

Adaptive Parallel Simultaneous Stabilization of Two Nonlinea...

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第二十九届中国控制会议

作者： SUN Liying1,2,WANG Yuzhen2 1.school of science,University of Jinan,Jinan 250022,P.R.china 2.school of control science and engineering,Shandong University,Jinan 250061,P.R.china

This paper investigates the adaptive parallel simultaneous stabilization problem of two nonlinear descriptor systems via the Hamiltonian function ***,under the Hamiltonian realizations of the two nonlinear descriptor systems and an adaptive output feedback law,two nonlinear descriptor systems are equivalently transformed into two nonlinear Hamiltonian differential-algebraic systems by nonsingular transformations,and then the two systems are combined to generate an augmented dissipative Hamiltonian differential-algebraic system by using the system-augmentation *** on the dissipative system,the adaptive parallel simultaneous stabilization controller of two nonlinear descriptor systems is designed via the Hamil-tonian function method.

关键词： Adaptive Parallel Simultaneous Stabilization Nonlinear Descriptor Systems Hamiltonian Function Method.

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Improved Adaptive Wavelet Threshold for Image Denoising

Improved Adaptive Wavelet Threshold for Image Denoising

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2009中国控制与决策会议

作者： Wei Zhang~(1,2),Fei Yu~1,Hong-mi Guo~1 1.school of Automation and Electronic engineering,Qingdao University of science and Technology,Qingdao,266042,china 2.school of control science and engineering,Shandong University,Jinan,250061,china

＜正＞Adaptive wavelet threshold for Bayes shrink（Bayes threshold） is a simple and effective method for image *** wavelet representations have excellent performance in image *** this paper,combining the multiple wavelet representations with the Bayes threshold and using their advantages in image denoising,proposes a new image denoising algorithm which called M-Bayes *** is simple and *** results show that the proposed M-Bayes threshold can achieve the state-of-the-art image denoising performance at the low computational complexity.

关键词： Image denoising Adaptive wavelet threshold Bayes shrink Multiple wavelet representations

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Optimal Finite-horizon control Problem of Context-sensitive Probabilistic Boolean Networks with Perturbation

Optimal Finite-horizon Control Problem of Context-sensitive ...

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第三十一届中国控制会议

作者： Liu Zhenbin~(1 2) Wang Yuzhen~2 1.science and Information College Qingdao Agricultural University Qingdao 266109 P.R.china 2.school of control science and engineering Shandong University Jinan 250061 P.R.china

＜正＞This paper investigates the optimal finite-horizon control problem of context-sensitive probabilistic Boolean control networks with perturbation by using the semi-tensor product of matrices,and presents a number of new results/***, the context-sensitive probabilistic Boolean network with perturbation is expressed in an algebraical form,and the transition matrix is given by three parts:the general part,the switched part and the perturbation ***,the optimal finite-horizon control problem is studied and a new algorithm is established to choose a sequence of control actions to minimize a given cost functional over finite ***,the study of an illustrative example shows that the results/algorithm presented in this paper are very effective.

关键词： Optimal control Context-sensitive Probabilistic Boolean Network Perturbation Semi-tensor Product

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Stochastic Discrete-Time Nash Games for Wireless Networks

Stochastic Discrete-Time Nash Games for Wireless Networks

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第二十七届中国控制会议

作者： Kong Shulan1,Zhang Huanshui2 1.school of Mathematics science,Qufu Normal University,Qufu 273165,P.R.china 2.school of control science and engineering,Shandong University,Jinan 250061,P.R.china

Stochastic linear-quadratic Gaussian nonzero-sum Nash games with constrained state information is proposed for joint control of power and rate in wireless *** each player（node） is constrained to use a linear Kalman-like state estimator to solve one’s optimal strategy,state estimators of two players are investigated according to information structure:the current output and a one-step delayed control input of the *** model the loop delay in distributed wireless networks,an optimal power and rate control scheme that minimizes the energy of the difference between the actual and desired Signal-toInterference-plus-Noise-Ratio（SNR） levels and the two players’control sequence is obtained for the congestion levels and the information *** for computing Nash-optimal feedback gains are *** optimal controllers of two players for the closed-loop Nash equilibrium solution are interrelated and cannot be determined *** fact exactly demonstrates a cooperative and influential relationship between players.

关键词： Stochastic linear-quadratic gaussian(LQG) Nash equilibrium solution Power control Wireless networks

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Interframe Variation Vector-Based Gait Recognition

Interframe Variation Vector-Based Gait Recognition

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2008 3rd International Conference on Intelligent System and Knowledge engineering(ISKE 2008)

作者： Song-Zhi Su 1 Li Wang 2 Shao-Zi Li 1 1.Cognitive science Department Xiamen University Xiamen Fujian 361005 china 2.school of control science and engineering Shandong University Ji’nan Shandong 250061 china

The reliable extraction of characteristic gait features from image sequences is an important issue in gait *** this paper we propose a simple,but efficient approach to extract gait *** view of the spatio-temporal motion characteristic of gait,we adopt the shape variation information between successive frames to denote gait information,called Interframe Variation *** with other features,IVV doesn’t condense a gait sequence into single image,which ignores the spatial attribute,but records the whole moving process in a IVV *** signature not only preserves all the movements of limbs of the body,above all it maintains the order of movement which is the nature of *** with other gait signatures,it can fully capture the essential feature of *** result on CASIA gait database shows that our proposed method has an encouraging recognition performance.

关键词：

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Risk-Sensitive Filter for Linear Discrete-Time Systems with Multiple Time-Delay Measurements

Risk-Sensitive Filter for Linear Discrete-Time Systems with ...

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第三十届中国控制会议

作者： ZHAO Hongguo~1,CUI Peng~2 1.school of Information science and Technology,Taishan University,Taian Shandong 271021,P.R.china 2.school of control science and engineering,Shandong University,Jinan Shandong 250061,P.R.china

＜正＞The risk-sensitive filtering problem is considered for linear discrete-time systems with time-delay measurement processes which are described by l+1 *** problem can be converted into an optimization problem with quadratic form. By introducing an auxiliary state-space model,we can use indefinite space approach to solve the optimization problem and design risk-sensitive filter with the help of the innovation ***,the necessary and sufficient conditions of existence for the risk-sensitive filter will be given when the risk-sensitive parameter is negative.（The risk-sensitive filter always exists when the risk-sensitive parameter is positive.）

关键词： Risk-sensitive filtering Time-delay Innovation analysis

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State-Feedback Stabilization control Design for a Class of Time-Delay High-Order Nonlinear Systems

State-Feedback Stabilization Control Design for a Class of T...

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第三十届中国控制会议

作者： SUN Zongyao~1,LIU Yungang~2 1.Institute of Automation,Qufu Normal University,Qufu 273165,P.R.china 2.school of control science and engineering,Shandong University,Jinan 250061,P.R.china

＜正＞The stabilization problem is investigated for a class of time-delay high-order nonlinear *** the flexible way of adding a power integrator,the recursive design procedure of a continuous state-feedback controller is derived,and globally asymptotic stability of the resulting closed-loop system is proven with the aid of the delicate construction of an appropriate Lyapunov-Krasovskii ***,a simulation example is given to illustrate the correctness of the theoretical result.

关键词： Time-Delay High-Order Nonlinear Systems Adding a Power Integrator Lyapunov-Krasovskii Functional State-Feedback

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An Adaptive controller for a Class of High-Order Nonlinear Systems with Unknown control Coefficients

An Adaptive Controller for a Class of High-Order Nonlinear S...

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第三十届中国控制会议

作者： SUN Zongyao~1,LIU Yungang~2,LIU Zhenguo~1 1.Institute of Automation,Qufu Normal University,Qufu,273165,P.R.china 2.school of control science and engineering,Shandong University,Jinan,250061,P.R.china

＜正＞In this paper,a valid approach is successfully addressed to design the adaptive stabilizing control law for a class of high-order nonlinear systems with unknown control coefficients and in triangular *** such control systems,the state- feedback stabilizing control has been investigated recently under the assumption that the lower bounds of the control coefficients are precisely *** paper removes such assumption,and gives the recursive design procedure of stabilizing control law by employing the approach of adding a power integrator together with adaptive technique to the appropriately defined unknown system *** designed state-feedback adaptive control law,which vanishes at the origin,guarantees that the states of the closed-loop system are globally asymptotically stable,while all the other signals are uniformly bounded.

关键词： High-Order nonlinear systems Adaptive stabilizing control Adding a power integrator Tuning functions

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Observer-based Sliding Mode control of Uncertain Singular Time-delay Systems

Observer-based Sliding Mode Control of Uncertain Singular Ti...

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第三十届中国控制会议

作者： LI Min~(1,2),LI Qiqiang~2,GAO Huanli~3,LIU Fuchun~3 1.College of Electronic Information and control engineering,Shandong Polytechnic University,Jinan,250353,P.R.china 2.school of control science and engineering,Shandong University,Jinan 250061,P.R.china 3.College of Automation science and engineering,South china University of Technology,Guangzhou 510640,P.R.china

＜正＞This note deals with the problem of designing full order sliding mode control for uncertain singular time-delay systems via cone complementary linearizable iterative *** uncertainties are mismatched and have norm *** estimate the sliding surfaces and the sliding control,a dynamical compensator is *** the equivalent control approach the sliding mode is got,whose stability is analyzed,in the augmented space formed by the system states and the state estimation *** on the estimated state variables and system output,a sliding mode control scheme is developed such that the system is driven to the sliding surface and maintained on it ***,a simulation is presented to show the effectiveness of the results.

关键词： Singular time-delay systems Sliding mode control Observer Cone complementary

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On the Zero-State Observability/Detectability of Switched and Hybrid Hamiltonian Systems with Infinite Number of Switching Subsystems

On the Zero-State Observability/Detectability of Switched an...

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第二十七届中国控制会议

作者： Zhu Liying1,Wang Yuzhen2 1.College of Mathematics,Physics and Information engineering,Zhejiang Normal University,Jinhua 321004,P.R.china 2.school of control science and engineering,Shandong University,Jinan 250061,P.R.china

This paper investigates the zero-state observability and detectability of switched and hybrid dissipative Hamiltonian systems with infinite number of switching subsystems,and proposes a number of new results for the ***,study of two examples shows the complexity of the relationship between the zero-state detectability/observability of a switched and hybrid Hamiltonian system and that of its ***,by fully exploiting the Hamiltonian structural properties,the（uniform） zero-state observability and detectability of switched and hybrid Hamiltonian systems with infinite number of switching subsystems are investigated,and several criterions are obtained.

关键词： Hybrid hamiltonian system Zero-state detectability/observability Criterion Sufficient condition

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