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Filtering by: Creator Hoover, D. J. Remove constraint Creator: Hoover, D. J. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • Analysis and design of bandpass delta-sigma A/D converters

    Creator:
    Zhai, Dalun
    Abstract:
    A new approach to oversampled delta-sigma A/D converters ( AZ modulators ) is introduced, where a differential pseudo-Npath filter stage is used as a basic cell. In this band-pass application, the z to -zN transformation is employed to realize a RAM-type pseudo-2-path lossless integrator. The bandpass second-order and 4th-order delta-sigma...
    Resource Type:
    Masters Thesis
    Full Text:
    Design of Bandpass Delta-Sigma A/D Converters Abstract approved: G or C. Temes A new approach to

  • Low-voltage pipeline A/D converter

    Creator:
    Wu, Lei
    Abstract:
    Continuous process scale-down and emerging markets for low-power/low-voltage mobile systems call for low-voltage analog integrated circuits. Switched-capacitor (SC) circuits are the building blocks for analog signal processing and will encounter severe overdrive problems when operating at low voltage conditions. There exist three techniques to solve the problem, but with their...
    Resource Type:
    Masters Thesis
    Full Text:
    Low-voltage pipeline A/D converter AN ABSTRACT OF THE THESIS

  • Low power, high performance pseudo-static D flip-flop

    Creator:
    Low, Tim D.
    Abstract:
    Digital systems, in particular microprocessor, have recently experienced phenomena growth in performance. Both technology advancement and clever design have sustained this performance growth. As clock frequency heads into the Ghz range, new circuit design, for both logic and storage, are needed. Such new circuit technology must provide needed performance with...
    Resource Type:
    Masters Thesis
    Full Text:
    Low power, high performance pseudo-static D flip-flop AN

  • Area efficient D/A converters for accurate DC operation

    Creator:
    Greenley, Brandon Royce
    Abstract:
    The design of mixed-signal integrated circuits has evolved from simple analog and digital circuits operating on the same silicon substrate to the point that now we have complete system on a chip solutions for communication systems. The levels of integration needed to remain cost effective in today's integrated circuit (IC)...
    Resource Type:
    Masters Thesis
    Full Text:
    Efficient D/A Converters For Accurate DC Operation. Abstract approved: Un-Ku Moon The design of mixed

  • Adaptive correction techniques for delta-sigma A/D converters

    Creator:
    Abdennadher, Salem
    Abstract:
    Oversampling analog-to-digital and digital-to-analog converters are gaining more popularity in many signal processing applications. Delta-sigma modulators are used in practical applications of oversampling systems because of their apparent practical advantage over other oversampling converters in terms of insensitivity to the inevitable imperfection of the analog circuitry. In Δ∑ modulators, analog...
    Resource Type:
    Masters Thesis
    Full Text:
    ] Hauser, M. W., "Principles of oversampling A/D conversion", J. Audio Eng. Soc., vol. 39, No.1/2., pp. 3

  • Engineering a Profiling System for a Robotic Oceanographic Surface Sampler

    Creator:
    Shannon, Robert J.
    Abstract:
    ROSS (Robotic Oceanographic Surface Sampler) is an autonomous boat, equipped with oceanographic sensors, used for studying the ocean’s surface. One of its advantages over traditional research vessels is its ability to sample near glaciers, an area too dangerous for manned ships. In order to properly ascertain deep ocean heat’s effect...
    Resource Type:
    Honors College Thesis
    Full Text:
    , and return from, depths of over 100 m at a steady rate. 14 Works Cited [1] D. J

  • Enhanced inverse synthetic aperture radar imagery using 2-D spectral estimation

    Creator:
    Ohm, David R.
    Abstract:
    This research focused on the use of classical and modern two-dimensional spectral estimation techniques for enhancing inverse synthetic aperture radar (ISAR) imagery. 2-D Classical spectral estimation methods and 2-D modern parametric and non-parametric spectral estimation methods are applied to simulated and real data sets in order to achieve both range...
    Resource Type:
    Masters Thesis
    Full Text:
    x yV x y j R y x R R πθ θ θ λ ⎤⎡ + = − + + − ⎥⎢ ⎥⎣ ⎦ . (2.5) 2.2 2-D MATCHED FILTER As

  • Design of a 14-bit continuous-time Delta-Sigma A/D modulator with 2.5MHz signal bandwidth

    Creator:
    Li, Zhimin
    Abstract:
    In recent years, there has been growing interest in both industry and academia to use continuous-time (CT) Δ-Σ A/D converters for wideband wireless and wireline communication applications. So far no reported CT Δ-Σ A/D modulator achieves 14-bit or higher dynamic range (DR) with more than 2MHz signal bandwidth (equivalently 4MS/s)....
    Resource Type:
    Dissertation
    Full Text:
    Delta-Sigma A/D Modulator with 2.5MHz Signal Bandwidth Abstract approved

  • Adaptive noise cancellation for second-order delta-sigma A/D converters

    Creator:
    Bribech, Habib
    Abstract:
    Oversampled analog-to-digital (A/D) converter architectures have been receiving increased attention for high-precision A/D converters. These architectures offer the means of exchanging resolution in time for that in amplitude. Among these oversampled A/D converters, delta-sigma modulators are the most popular method used due to their simplicity in the analog circuitry. The...
    Resource Type:
    Masters Thesis
    Full Text:
    . Hauser, "Principles of Oversampling A/D Conversion," J. Audio Eng. Soc., vol. 39, pp. 3-26, Jan./Feb

  • Compensation techniques for cascaded delta-sigma A/D converters and high-performance switched-capacitor circuits

    Creator:
    Sun, Tao
    Abstract:
    This thesis describes compensation techniques for cascaded delta-sigma A/D converters (ADCs) and high-performance switched-capacitor (SC) circuits. Various correlated-double-sampling (CDS) techniques are presented to reduce the effects of the nonidealities, such as clock feedthrough, charge injection, opamp input-referred noise and offset, and finite opamp gain, in SC circuits. A CDS technique...
    Resource Type:
    Dissertation
    Full Text:
    Compensation Techniques for Cascaded Delta-Sigma A/D