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Proceedings of 28th Southeastern Symposium on System Theory

March 31 1996-April 2 1996

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  • Proceedings of 28th Southeastern Symposium on System Theory

    Publication Year: 1996
    Request permission for commercial reuse | PDF file iconPDF (2011 KB)
    Freely Available from IEEE
  • Detection of multiple unresolved Rayleigh targets using quadrature monopulse measurements

    Publication Year: 1996, Page(s):285 - 289
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (426 KB)

    When the returns from two or more targets interfere (i.e., the signals are not resolved in the frequency or time domains) in an amplitude comparison monopulse radar system, the direction of arrival estimate indicated by the monopulse ratio can wander far beyond the angular separation of the targets. The failure to detect the presence of the interference can be catastrophic to the performance of th... View full abstract»

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  • Author index

    Publication Year: 1996
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    Freely Available from IEEE
  • Dual-input describing function with Matlab

    Publication Year: 1996, Page(s):198 - 200
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (152 KB)

    Generation of altered nonlinear characteristic block using Matlab-Simulink is presented. These blocks can be added to the block library and be used to replace the corresponding nonlinear element for applying dual-input describing function in simulation. This will help teaching and understanding the concept and applications of dual-input describing function. This is a way of incorporating computer ... View full abstract»

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  • Poincare sections and the R-L-diode circuit

    Publication Year: 1996, Page(s):195 - 197
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    The purpose of this paper is to introduce the reader to Poincare sections, bifurcations, and a chaotic circuit. Poincare sections are described by examining a periodically forced system. Bifurcation analysis follows from the Poincare sections, and a few different types of bifurcations are mentioned. The use of these techniques is shown on the R-L-diode circuit View full abstract»

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  • Designs and applications of observer for nonlinear control system

    Publication Year: 1996, Page(s):190 - 194
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (268 KB)

    This paper discusses a method, based on complete linearization, combining a nonlinear state observer design for nonlinear system. By applying the scheme to a polymeric reaction process, the simulation results show that it has not only good tracking ability and convergence but also better parameter robustness View full abstract»

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  • Optimal discrete-continuous control for the linear-quadratic regulator problem

    Publication Year: 1996, Page(s):184 - 188
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB)

    In the conventional method of discrete-time control, the control-input is held constant across each sampling interval; i.e., “zero-order hold” type control. In this paper a previously introduced generalization of the conventional discrete-time control method, in which the control is allowed to vary with time (open-loop fashion) across each sampling interval is considered and applied to... View full abstract»

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  • Sub-band encoding of images using 2-D adaptive deltamodulation

    Publication Year: 1996, Page(s):93 - 97
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (688 KB)

    Presents the results for a subband encoder for still pictures, using adaptive deltamodulation as the main encoder. The image signal is separated into four subbands using conventional separable 2-D filters, and the individual signals are encoded using 2-D ADM. Two different types of ADM encoders are used and very good quality is obtained at 0.75 bpp-1.25 bpp View full abstract»

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  • VHDL description of self-checking logic circuits

    Publication Year: 1996, Page(s):477 - 481
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    The mainstream of current digital circuit design strategy is top-down, where the design process is divided into many phases. A designer starts with a high level description of a circuit, e.g. VHDL, and goes through the design phases to reach mask layout level. This paper develops a set of rules that can be applied to any VHDL description of a logic circuit such that the synthesized gate level circ... View full abstract»

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  • Implementation of a distributed control system for dynamic lane assignment

    Publication Year: 1996, Page(s):524 - 528
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (492 KB)

    This paper reviews the basic signing technologies available to the traffic engineer for dynamically changing lane assignments. An example installation of dynamic lane assignment in Houston, TX is reviewed and referenced as the motivation for developing a simple traffic signal cabinet interface for dynamic lane assignment signs. Various candidate control architectures are summarized and a distribut... View full abstract»

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  • Cascaded Hamiltonian equations and dynamic programming

    Publication Year: 1996, Page(s):180 - 183
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    For optimal control problems with a cost functional in a form akin to a Volterra-Wiener series, the author obtains optimality conditions in the form of cascaded Hamiltonian equation and cascaded dynamic programming equations View full abstract»

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  • Design of QMF banks and nonlinear optimization

    Publication Year: 1996, Page(s):88 - 92
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB)

    This paper considers the design of quadrature mirror filter (QMF) banks whose analysis and synthesis filters have linear phase and are of FIR. An iterative algorithm for minimizing the reconstruction error of QMF banks as well as the stopband error of the prototype filter has been developed in the literature. the authors' results provide new derivations for an explicit expression of the error func... View full abstract»

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  • A low-cost and low-power digital audio processor

    Publication Year: 1996, Page(s):358 - 361
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    Digital audio signal processing has become increasingly popular in multimedia systems, largely thanks to the advent of general digital signal processor (DSP) chips and high-precision oversampling A/D and D/A converters. For portable and home entertainment audio systems, however the general-DSP-chip-based solution might be too costly and consume too much power. Then a low-cost and low power solutio... View full abstract»

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  • High performance branch prediction

    Publication Year: 1996, Page(s):472 - 476
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (508 KB)

    Today's advanced architectures increasingly rely on accurate instruction fetch and branch prediction to maintain optimum pipeline performance. In this paper, dynamic branch prediction techniques are investigated and methods to increase branch prediction accuracy are explored. A result of this analysis has been the development of several dynamic branch prediction architectures that combine promisin... View full abstract»

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  • Simulation of electronics manufacturing systems with two-card kanban

    Publication Year: 1996, Page(s):391 - 395
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    In this paper, two simulation models of an electronics manufacturing system are developed in order to evaluate the performance of kanban-based production with make-to-stock and make-to-order strategies. The first simulation model is based on the concept of make-to-stock, an approach in which a company assumes that the finished products in stock can be immediately delivered to the market. The secon... View full abstract»

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  • A new subband coding technique using (JPEG) discrete cosine transform for image compression

    Publication Year: 1996, Page(s):317 - 321
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1140 KB)

    Subband image coding has been shown to be an effective image compression technique for high quality coding at low bit rates. This paper proposes a new subband image compression technique design based on 2-D single-sideband analysis/synthesis system. This new method involves two basic components: the subband analysis/synthesis subsystem, which is composed of down-sampling/up-sampling and filter ban... View full abstract»

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  • Sliding mode control of an inverted pendulum

    Publication Year: 1996, Page(s):248 - 252
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    This paper considers a sliding mode controller for a rotational inverted pendulum. The purpose of this paper is to familiarize the reader with the strengths of sliding mode control on a very popular system. Another purpose is to reveal the authors' unique surface design which permits the pendulum angle (θdes) to be a function of the base angle (β):θdes(β... View full abstract»

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  • Control of a one-mode model on the minimum-time of a flexible structure

    Publication Year: 1996, Page(s):519 - 523
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (300 KB)

    In a previous article, a set of five conditions were given to describe the switching hypersurface of the minimum-time, single-axis controller for an undamped, one-mode model of a flexible slewing structure. The purpose of this paper is to show that the five conditions have been found to be reducible to three. This oversight is amended and a new plot of the three conditions in a two-dimensional pla... View full abstract»

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  • Stochastic modelling of pavement roughness

    Publication Year: 1996, Page(s):28 - 32
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    Pavement roughness is usually characterized by a one figure statistic of pavement profile data. This approach discards a rich body of useful pavement information in the pavement profile data. In this study, informative parametric models for pavement roughness are developed where pavement roughness is treated as a stochastic signal. Based on this stochastic modeling of roughness, a new stochastic r... View full abstract»

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  • On the existence of a generalized optimal synthesis for linear quadratic singular optimal control problems with a fixed terminal point

    Publication Year: 1996, Page(s):175 - 179
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB)

    Uses the techniques of jump vectors, distributional inputs, decompositions of the state, control, and output spaces as direct sums of proper subspaces as well as the existence of an optimal synthesis for linear quadratic regular optimal control problems with a fixed terminal point to give a simple and constructive proof of the existence of a generalized optimal synthesis for linear quadratic singu... View full abstract»

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  • Nonlinear robust adaptive observers

    Publication Year: 1996, Page(s):81 - 85
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    Extensions of a robust adaptive observer are presented for state reconstruction of nonlinear systems with uncertainty having unknown bounds. The observers use nonlinear gains which are continuously updated to guarantee a globally asymptotically convergent observation error. A generalization to known waveform type disturbances and measurement uncertainties is pointed out and an example is included ... View full abstract»

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  • Interval analysis application for stability margin computation of linear uncertain systems

    Publication Year: 1996, Page(s):492 - 496
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    This paper presents a numerical method to compute the stability margin of a linear parametric uncertain system. For an admissible uncertainty set in the weighted l norm space, a branch and bound algorithm is proposed to obtain the stability margin. Bisection is performed to generate the nondecreasing sequence of the stability radii and the corresponding stability box. For each in... View full abstract»

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  • High-speed semiconductor devices for communication systems

    Publication Year: 1996, Page(s):353 - 357
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB)

    The performance of Heterojunction Bipolar Transistors (HBTs) fabricated on novel quaternary InAlGaAs/InGaAs structures grown lattice matched on InP substrates are presented. For the first time the measured pulsed current voltage characteristics on InP HBT devices allow the direct observation of junction thermal effects. The incorporation of quaternary compounds contributes to a significant reducti... View full abstract»

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  • A comparison of heuristics for list schedules using the Box-method and P-method for random digraph generation

    Publication Year: 1996, Page(s):467 - 471
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    It is not uncommon to evaluate the effectiveness of competing parallel processing scheduling, mapping, and allocation heuristics by applying a common set of randomly-generated task systems and comparing the performance of the resulting allocations in a statistical manner with one another. Although much research has been performed using this paradigm the authors believe that often the results of su... View full abstract»

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  • Modeling and simulation of processors and networks for smart Navy aircraft components and systems

    Publication Year: 1996, Page(s):386 - 390
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (504 KB)

    Researchers in the HCS Research Lab are developing a variety of network and processor models to support the simulation of smart Navy aircraft components/systems (SNACS) using a coarse-grain, discrete-event, system modeling and simulation tool from NuThena Systems Inc. called Foresight. Foresight is being extended to develop a coarse-grain functional analysis system to portray the behavior of smart... View full abstract»

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