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Filtering by: Academic Affiliation Electrical and Computer Engineering Remove constraint Academic Affiliation: Electrical and Computer Engineering License All rights reserved Remove constraint License: All rights reserved Resource Type Masters Thesis Remove constraint Resource Type: Masters Thesis

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  • Voltage analysis of PWM inverter fed induction motors

    Creator:
    Al-Ghubari, Fahad H.
    Abstract:
    Adjustable Speed Drive (ASD) systems are widely used in industry to effectively improve process efficiency and control. Typically, an ASD system consists of a motor with its speed controlled by a power electronics converter via varying the amplitude and frequency of the input voltage. However, several abnormal insulation failures of...
    Resource Type:
    Masters Thesis

  • Turbo-coded OCC-CDMA with spatial diversity for wireless mobile communications

    Creator:
    Tjahjadi, Aldo
    Abstract:
    Turbo codes have been used successfully for error correction in digital communications, however, their application to wireless mobile communications is still a fresh research topic. The objective of this thesis is to present a new solution that involves the usage of turbo codes, spatial diversity, and orthogonal complementary codes in...
    Resource Type:
    Masters Thesis

  • Testing and modeling of the single-phase Written-Pole Motor

    Creator:
    Chis, Lucian
    Abstract:
    A relatively new development in the electric machines field has been the written-pole technology, of which the latest product is the large single-phase electric motor, the single phase Written-Pole Motor (WPM). The WPM is a synchronous, permanent-magnet single-phase motor having a weak rotor cage for start-up which in addition exhibits...
    Resource Type:
    Masters Thesis

  • TekBots : a platform for learning to revitalize undergraduate engineering education

    Creator:
    Heer, Donald
    Abstract:
    In 2000 the Electrical and Computer Engineering department at Oregon State University began a new and innovative program named TekBots[superscript TM]. This program was created to solve the problems of students in existing undergraduate engineering education not having sufficient skill when graduating in six program educational objectives; Depth, Breadth, Professionalism,...
    Resource Type:
    Masters Thesis

  • Taskmaster II, a versatile distributed system for control

    Creator:
    Schaal, Hans-Werner
    Abstract:
    This thesis discusses a special type of a versatile, distributed control system, the Taskmaster II. It includes a detailed specification of a readily realizable Taskmaster system utilizing a layered communication among units, oriented on the ISO OSI seven layer model. The specification was developed from the analysis of previous research...
    Resource Type:
    Masters Thesis

  • Radiation effects in III-V compound semiconductor heterostructure devices

    Creator:
    Li, ChyiShiun
    Abstract:
    The radiation effects in III-V heterojunction devices are investigated in this thesis. Two types of heterojunction devices studied are InGaP/GaAs single heterojunction bipolar transistors (SHBTs) and GaN-based heterojunction light emitting diodes (LEDs). InGaP/GaAS HBTs are investigated for high energy (67 and 105 MeV) proton irradiation effects while GaN heterojunction LEDs...
    Resource Type:
    Masters Thesis

  • Radiation effects in compound semiconductor heterostructure devices

    Creator:
    Sarkar, Aveek, 1974-
    Abstract:
    Radiation studies were performed on compound semiconductor heterostructure devices. The objective was to understand the degradation processes caused by the exposure of these devices to radiation. Preliminary experiments were focussed on studying the degradation phenomenon in single heterojunctions and single quantum wells. It was found that ionizing radiation like gamma...
    Resource Type:
    Masters Thesis

  • Prototyping a scalable Montgomery multiplier using field programmable gate arrays (FPGAs)

    Creator:
    Mhaidat, Khaldoon
    Abstract:
    Modular Multiplication is a time-consuming arithmetic operation because it involves multiplication as well as division. Modular exponentiation can be performed as a sequence of modular multiplications. Speeding the modular multiplication increases the speed of modular exponentiation. Modular exponentiation and modular multiplication are heavily used in current cryptographic systems. Well-known cryptographic...
    Resource Type:
    Masters Thesis

  • Prediction of phase noise and jitter in ring oscillators

    Creator:
    Barton, Nathen
    Abstract:
    This thesis presents distinctly different methods of accurately predicting phase noise and absolute jitter in ring oscillators. The phase noise prediction methods are the commercially available SpectreRF and isf_tool, a simulator developed in this work from the Hajimiri and Lee theory of phase noise. Absolute jitter due to deterministic supply...
    Resource Type:
    Masters Thesis

  • Power estimation of superscalar microprocessor using VHDL model

    Creator:
    Zhang, Wanpeng
    Abstract:
    Power optimization becomes more and more important due to the design cost and reliability. Sometimes high power consumption means expensive package cost and low reliability. The first step in optimizing power consumption is determining where power is consumed within a processor. While system-level code tracing and bit transition calculation are...
    Resource Type:
    Masters Thesis