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Proceedings of the Thirty-Fourth Southeastern Symposium on System Theory (Cat. No.02EX540)

  0094-2898

 

 

 

Cơ quản chủ quản:  N/A

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An intelligent universal virtual laboratory (UVL)
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M. Duarte, B.P. Butz
The objective of this project is to create a realistic, real-time, electrical engineering virtual laboratory for the use of disabled students. This project targets individuals who do not have adequate mobility of their upper bodies to perform laboratory experiments. To provide a more realistic and enhanced learning experience, the users of the virtual laboratory are allowed the freedom to build an... hiện toàn bộ
#Laboratories #Electrical engineering #Instruments #Circuit simulation #Circuit testing #Computational modeling #Graphical user interfaces #User interfaces #Performance evaluation #Diseases
Performance of noise canceller using adjusted step size LMS algorithm
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Joonwan Kim, A.D. Poularikas
An adjusted step size LMS (least mean squares) algorithm is proposed for possible improvements in the performance of adaptive FIR filters in nonstationary environments. Nonstationary signals means that the statistical properties of the noise changes in time such as the high frequency channel time variations. In the paper, an adaptive noise canceller is proposed which is based on signal to noise ra... hiện toàn bộ
#Noise cancellation #Least squares approximation #Finite impulse response filter #Adaptive filters #Working environment noise #Signal to noise ratio #Microphones #Convergence #Frequency #Speech enhancement
Fault-tolerant kinematically redundant robots
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C. Caldwell, R.G. Roberts
Fault tolerance is a critical issue for teleoperated or autonomous robotic systems that are operating in hazardous and/or remote environments where joint failures are likely. A single joint failure can render an otherwise dexterous manipulator useless. In this article, we examine two measures of fault tolerance. In addition to determining optimally fault tolerant configurations, these measures can... hiện toàn bộ
#Fault tolerance #Orbital robotics #Jacobian matrices #Sea measurements #Robot sensing systems #Actuators #Manipulator dynamics #Fault tolerant systems #Null space #Kinematics
Analysis of a linear variable reluctance motor with magnetically coupled phases
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D.G. Taylor, R. Ahmed
This paper deals with the magnetic modeling of a type of linear variable reluctance motor. The motor under study is a three-phase motor that exhibits strong magnetic coupling between its phases. Two modeling techniques are used: the magnetic circuit analysis is emphasized due to its simplicity and computational efficiency; and the finite element analysis is used primarily to provide accurate bench... hiện toàn bộ
#Magnetic analysis #Reluctance motors #Couplings #Synchronous motors #Magnetic flux #Magnetic circuits #Permanent magnet motors #Circuit analysis #Finite element methods #Magnetic materials
Increasing the efficiency of the use of wavelet-like finite element basis functions
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S. Tuksinvarajan, W.E. Hutchcraft, R.K. Gordon
In this paper, some of the advantages and disadvantages of the use of wavelet-like basis functions are discussed. Two modifications for mitigating some of the disadvantages are considered. Numerical results obtained using these modifications are presented.
#Finite element methods #Multiresolution analysis #Sparse matrices #Iterative methods #Wavelet analysis #Wavelet domain #Differential equations #Convergence of numerical methods #Gradient methods #Cost function
Passive compliance synthesis
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R.G. Roberts, E. Fabre
In this article we survey some recent work on the problem of realizing a spatial stiffness matrix with a parallel connection of springs. The techniques described here can be used to realize an arbitrarily specified stiffness dominated spatial impedance through the use of a mechanism constructed of passive springs. The article includes a discussion on how to rind an optimal realization of a positiv... hiện toàn bộ
#Springs #Robotic assembly #Manipulators #Symmetric matrices #Robots #Force control #Fasteners #Educational institutions #Impedance #Position control
Adaptive rate coding for image data transmission
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V. Bhaskar, L.L. Joiner
Punctured convolutional codes (PCCs) are necessary for applications requiring high data transmission rate. For efficient high rate codes, PCCs have been widely used to reduce the implementation complexity of the Viterbi decoder. The codes provide good bit-error-rate (BER) performance. A slowly time-varying frequency non-selective Rician fading channel is assumed. A finite-state Markov chain is use... hiện toàn bộ
#Image coding #Data communication #Decoding #Error correction #Convolutional codes #Viterbi algorithm #Bit error rate #Frequency #Rician channels #Time-varying channels
Dynamic control allocation for reusable launch vehicles
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A.S. Hodel, R. Callahan
Gain-scheduled linear-affine control allocation functions /spl delta//sub c/=F(x)/spl tau//sub c/+/spl delta//sub 0/(x) are inherently inaccurate due to inherent limits of performance of the design process. As a result, online CA correction is required, either in terms of adaptive methods, e.g., system identification, or time-invariant methods, e.g., /spl Hscr//sub /spl infin// control. We investi... hiện toàn bộ
#Vehicle dynamics #Vehicles #Torque control #Aerodynamics #Vectors #Adaptive control #System identification #Actuators #Least squares approximation #Linear programming
Kiểm soát phát điện tự động trước và sau khi giải phóng thị trường Dịch bởi AI
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#Kiểm soát phát điện tự động #Kết nối mạch tích hợp #Hệ thống điều khiển #Độ tin cậy của hệ thống điện #Các hệ thống điện #Sản xuất điện #Hội đồng #Bắc Mỹ #Kiểm soát hệ thống điện #Ngành công nghiệp điện.
A survey paper on independent component analysis
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K.N. Leach
Independent component analysis (ICA) is a statistical and computational technique for revealing hidden or underlying factors in data. The independent components or sources can be found using ICA provided that all components are independent and non-Gaussian.
#Independent component analysis #Principal component analysis #Data analysis #Source separation #Blind source separation #Decorrelation #Signal processing #Application software #Random variables #Stochastic processes