A cloud model-based controller which needs no mathematical models of plant is presented in this paper for the trajectory tracking control of a flexible-link manipulator with poorly known dynamics. Based on the singula...
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A robust adaptive control scheme is presented for a class of uncertain continuous-time multi-input multi-output (MIMO) nonlinear systems. Within these schemes, multiple multi-layer neural networks are employed to appr...
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Star sensors are widely used in aerospace and astronautics due to their high precise attitude measurements. The main difficulty when estimate a fully autonomous attitude is identifying the stars in the sensor field. T...
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ISBN:
(纸本)0780393953
Star sensors are widely used in aerospace and astronautics due to their high precise attitude measurements. The main difficulty when estimate a fully autonomous attitude is identifying the stars in the sensor field. This paper surveys the development of the past 35 years in the area of autonomous star identification. Some classical algorithms such as polygon algorithm, match group algorithm, grid algorithm, neural network, genetic algorithm, singular value method, and so on are reviewed and described in detail. The performances of each algorithm are compared and the factors related to the problem are analyzed. Finally, some conclusions and suggestions are given for future research.
In many cases, the topology of communcation systems can be abstracted and represented as graph. Graph theories and algorithms are useful in these situations. In this paper, we introduced an algorithm to enumerate all ...
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The dynamic panorama keeps the advantage of providing both full view of scene in static panoramas and the dynamics of the scene, which remarkably strengthens the reality of walkthrough. This paper presents a method to...
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Active Queue Management (AQM) is an effective method used in Internet routers to enhance congestion control, and to achieve a trade off between link utilization and delay. The de facto standard, the Random Early Detec...
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作者：
韩玮张龙军郑东陈克非Dept. of Computer Science and Eng.
Shanghai Jiaotong Univ. Shanghai 200030 China
State Key Lab. of Information Security Graduate School of Chinese Academy of Sciences Beijing 100094
E-lottery is a popular game for its convenience provided by the lnternet. An e-lottery scheme based on voting is proposed. The scheme is publicly verifiable and the fairness can be guaranteed. Lottery players not only...
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E-lottery is a popular game for its convenience provided by the lnternet. An e-lottery scheme based on voting is proposed. The scheme is publicly verifiable and the fairness can be guaranteed. Lottery players not only provide seed numbers to create the initial value of the lucky number, but also have an opportunity to change the intermediate value of the lucky number by means of voting. The new property of the scheme makes the lottery game more interactive and attractive to players. The anonymity of submitting the lottery ticket and casting the vote is achieved. Comparison with other existing elottery schemes is given.
Adding haptic feedback in deformable objects is attractive in many applications, such as computer games, interactive cartoon design, and virtual prototyping. In this paper, we propose an interactive haptic deformation...
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In this talk, a fuzzy singularly perturbed model is proposed for the modeling, control and filtering of a class of multi-time-scale dynamical systems, such as semiconductor packaging processes, multi-link (joint) flex...
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ISBN:
(纸本)0769525288
In this talk, a fuzzy singularly perturbed model is proposed for the modeling, control and filtering of a class of multi-time-scale dynamical systems, such as semiconductor packaging processes, multi-link (joint) flexible manipulators and large scale flexible space structure. The variant expands the idea from Takagi-Sugeno type fuzzy system that the dynamics of a class of distributed parameter systems can be approximated by softly merging locally linear singularly perturbed model, and an increased partition of fuzzy space will lead to a more precise approximation. As a result, the control problem for multi-time scale dynamical systems can be reduced to that for fuzzy singularly perturbed system so that plentiful of theoretical results are hopefully obtained. Main achievements in this field will be reported, which are carried out in my research group at National lab of Information science and Technology of Tsinghua University. These researches include fuzzy singularly perturbed model (FSPM), its universal approximation, controller synthesis and filtering for discrete-time and continuous-time multi-time-scale dynamical systems.
In recent years, researches have been done many works in the area of application of mobile computing technologies in construction to improve the low productivity of construction. This paper gives a brief review of the...
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