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Filtering by: Subject Investments -- Mathematical models Remove constraint Subject: Investments -- Mathematical models Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • A dynamic model of exchange rate in relation to international trading

    Creator:
    Sun, Keong-wah Gary
    Abstract:
    It is popular belief that the volatility of the exchange rate is due to the balance of payments, which in turn is mainly influenced by the balance of trade. A closed-loop dynamic economic model is proposed to describe and analyse the effect of the international trade of a country on...
    Resource Type:
    Dissertation
    Full Text:
    on Sept. 27, 1974 (Major department) (Date) Title: A DYNAMIC MODEL OF EXCHANGE RATE IN RELATION TO

  • Hybrid computer simulation of wind-driven ocean currents

    Creator:
    Vithayathil, Francis Joseph
    Abstract:
    A simulation method using a hybrid computer is developed in this dissertation to enhance the study of wind-driven ocean circulation. The simulation is based on the mathematical model developed by Ekman. Pure digital simulation is not economical due to excessive computer time required for the solution of the partial differential...
    Resource Type:
    Dissertation
    Full Text:
    -driven ocean circulation. The simulation is based on the mathematical model developed by Ekman. Pure

  • Adaptive model-based motion estimation

    Creator:
    Crinon, Regis
    Abstract:
    A general discrete-time, adaptive, multidimensional framework is introduced for estimating the motion of one or several object features from their successive non-linear projections on an image plane. The motion model consists of a set of linear difference equations with parameters estimated recursively from a non-linear observation equation. The model dimensionality...
    Resource Type:
    Dissertation
    Full Text:
    Model-Based Motion Estimation Abstract approved Wojciech J. Kolodziej A general discrete-time

  • Frequency domain steady-state simulation of oscillators

    Creator:
    Duan, Xiaochun
    Abstract:
    The focus of this work is on developing algorithms for frequency domain steady-state analysis of oscillators. Convergence problems associated with the frequency domain harmonic balance simulation of oscillators have been examined. Globally convergent homotopy methods have been combined with the harmonic balance method for robust high-Q oscillator simulation. Various homotopy...
    Resource Type:
    Dissertation

  • Modeling and characterization of multiple coupled lines

    Creator:
    Tripathi, Alok
    Abstract:
    A configuration-oriented circuit model for multiple coupled lines in an inhomogeneous medium is developed and presented in this thesis. This circuit model consists of a network of uncoupled transmission lines and is readily modeled with simulation tools like LIBRA© and SPICE©. It provides an equivalent circuit representation which is simple...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved- . K. npat A configuration-oriented circuit model for multiple coupled lines in an

  • Applied color processing

    Creator:
    Zhang, Heng
    Abstract:
    The quality of a digital image pipeline relies greatly on its color reproduction which should at a minimum handle the color constancy, and the final judgment of the excellence of the pipeline is made through subjective observations by humans. This dissertation addresses a few topics surrounding the color processing of...
    Resource Type:
    Dissertation
    Full Text:
    illuminant estimation algorithm. An elliptical boundary model is employed as the classifier for color pixel

  • Duty-cycle controlled switched resistor techniques for continuously tunable, low-voltage circuits

    Creator:
    Kurahashi, Peter
    Abstract:
    A duty-cycle controlled switched resistor is a tunable resistive element that uses pulse width modulation as the method of tuning. This thesis will describe the operation of switched resistors and propose several circuit architectures that are well suited to the use of switched resistors. These architectures include filters, mixers, and...
    Resource Type:
    Dissertation
    Full Text:
    generic model of a LPTV system is shown in Fig. 2.5. The input-output behavior of LPTV systems can be

  • Correlated level shifting as a power-saving method to reduce the effects of finite DC gain and signal swing in opamps

    Creator:
    Gregoire, B. Robert
    Abstract:
    This thesis presents methods to reduce the effects of finite opamp DC gain, output voltage swing limitations in opamps, and component mismatches. The primary contribution of this thesis is a new switched-capacitor method named correlated level shifting (CLS). CLS enables true rail-to-rail operation by storing an estimate of the desired...
    Resource Type:
    Dissertation
    Full Text:
    Page 1. A model of a MOSFET with thermal noise source included

  • Multi-dimensional parametric estimation: two-dimensional sharpening by predictive bandwidth extrapolation and fast algorithms for three dimensional autoregressive estimation

    Creator:
    Liew, Ji Seok
    Abstract:
    Achieving sharpened (enhanced detail) features of a multi-dimensional data source using the linear prediction (LP) bandwidth extrapolation (BWE) technique in the transform domain is the main objective of this research. The evolution of sensor technology has provided acquisition scenarios in which the data format is inherently multi-dimensional, including hyperspectral imaging...
    Resource Type:
    Dissertation
    Full Text:
    techniques to determine information regarding target position signal; conventional FFT processing, model

  • A computer simulation model of land use dynamics in the State of Oregon

    Creator:
    Calligan, C. C.
    Abstract:
    The dynamics of land use in the State of Oregon are simulated on a digital computer. The introductory chapter outlines the complex nature of the problems facing the post-industrial society and argues that the scientific and professional estates share in the responsibility for public policy formulation. The second chapter .presents...
    Resource Type:
    Dissertation
    Full Text:
    . 21 1.1) Problem Formulation 22 1.2) Mathematical Modeling and Simulation 25 1.3) Model Refinement