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  • Foreground signature extraction for a non-linear hyperspectral mixing model

    Creator:
    Hollis, Jarrod
    Abstract:
    Hyperspectral images consist of intensity measurements associated with a large number of EM wavelengths per pixel. When a pixel contains a single material, the measurements of the pixel match the spectral signature of the material. When multiple materials are present in a single pixel, spectral mixing occurs, and signatures of...
    Resource Type:
    Masters Thesis
    Full Text:
    acknowledge Dr. Xiao Fu and Dr. Leonard Coop for serving on my defense committee. Finally, I would like to

  • A DC-DC converter architecture for low-power, high-resistance thermoelectric generators for use in body-powered designs

    Creator:
    Miller, Brian A.
    Abstract:
    This thesis presents a low power DC-DC converter suitable for harvesting energy from high impedance thermoelectric generators (TEGs) for the use in body powered electronics. The chip has been fabricated in a 130nm CMOS technology. To meet the power demands of body powered networks, a novel dual-path architecture capable of...
    Resource Type:
    Masters Thesis
    Full Text:
    architectures. (a) Two converter architecture. (b

  • A Multiresolution Analysis of Temporal Logic

    Creator:
    Pelphrey, Richard E.
    Abstract:
    Is it possible to determine whether a signal violates a formula in Signal Temporal Logic (STL), if the monitor only has access to a low-resolution version of the signal? We answer this question affirmatively by demonstrating that temporal logic has a multiresolution structure, which parallels the multiresolution structure of signals....
    Resource Type:
    Masters Thesis
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 B Proof of Lemma 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 C Proof of

  • Determination of magnetoelastic parameters in magnetic thin films from FMR spectra

    Creator:
    Masood, Khalid I.
    Abstract:
    The ferromagnetic resonance (FMR) phenomenon serves as a sensitive probe of the effective internal fields in a magnetic material. FMR spectroscopy has consequently become a well-established technique, extensively employed in assessing material properties such as magnetic anisotropy, Landé g-factor, damping parameter, and the magnetoelastic constants of magnetic materials. Determining these...
    Resource Type:
    Dissertation
    Full Text:
    CONTENTS (Continued) Page B Parameter Extraction Algorithm . . . . . . . . . . . . . . . . . . . . 159

  • Characterizing an Annual Grass Invasion and Its Link to Environmental and Disturbance Factors Using Remote Sensing: New Tools and Applications

    Creator:
    Nietupski, Ty C.
    Abstract:
    The spread of nonnative species across the globe has contributed to biodiversity loss and changes in ecosystem structure and function. Monitoring the introduction, naturalization, and spread of introduced species is critical in abating negative impacts wrought by species invasions. However, providing basic information concerning the presence or spread of many...
    Resource Type:
    Dissertation
    Full Text:
    / row 29, and B) path 43/ row 30. The x-axis shows the DOY in which the model performance was evaluated

  • Single-Ended Techniques for Delta-Sigma Modulators

    Creator:
    Lee, Calvin Y.
    Abstract:
    This work presents a high-resolution Delta-Sigma ADC which combines the use of the pseudo-pseudo-differential noise filtering technique with single-ended ring amplifier based integrators. The pseudo-pseudo-differential noise filtering technique utilizes single-ended circuits while maintaining the even-order rejection found in fully-differential structures which alleviates, in the active analog blocks, the need for...
    Resource Type:
    Dissertation
    Full Text:
    OF FIGURES Figure Page 2.1 a) Pseudo-pseudo-differential (PPD) integrator as shown in [1] and b

  • Identifiability-Aware Joint Sparse Error Correction For Robust State Estimation

    Creator:
    Kibria, Sharmin
    Abstract:
    We study joint nonlinear state estimation with multi-period measurement vectors that are potentially corrupted by sparse gross errors. The identifiability-aware approach is proposed to leverage common characteristics of fundamentally identifiable gross errors to enhance error correction performance. First, we derive a necessary rank condition that the sparsity pattern of any...
    Resource Type:
    Dissertation
    Full Text:
    Identifiability Condition . . . . . . . . . 52 B Convergence Analysis Of Total Error Estimation Algorithm

  • Printed Nanocomposite Devices and Flexible Electronics for Humidity Sensing

    Creator:
    Ajithkumar, Amritha
    Abstract:
    The thesis focuses on the development of a novel printed resistive humidity sensor and integrated flexible electronics for an RFID-enabled humidity sensing platform. We explored a hybrid nanocomposite material for humidity sensing consisting of carbon nanomaterials, conductive polymer and cellulose polymer that undergoes resistance change in response to humidity change....
    Resource Type:
    Masters Thesis
    Full Text:
    guidance and encouragement throughout research. In addition, I express my appreciation to Dr. Leonard

  • Wirelessly Powered cm-Scale Sensor for Small Insect Localization Application

    Creator:
    Kang, Jian
    Abstract:
    The prevalence of Internet-of-Things (IoT) applications leads to an increasing focus on the design and optimization of sensor nodes. Battery lifetime and associated costs of battery replacement often limits the long term operation and viability of sensor nodes. RF wireless energy harvesting on the other hand can be appealing since...
    Resource Type:
    Dissertation
    Full Text:
    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 3.14 Measured transient waveform of (a) VRECT and VC1, (b) Zoomed-in of VRECT during Phase-1 and

  • Electronic Conduction Mechanisms in Insulators

    Creator:
    Chiang, Tsung-Han
    Abstract:
    The research presented herein focuses on electrical assessment of oxide thin films as insulators. The current density-electric field (J-E) characteristics of four insulators of dramatically different electrical quality are assessed in terms of their operative electronic conduction mechanisms. Conduction in the two high-quality insulators is dominated by Ohmic conduction and...
    Resource Type:
    Dissertation
    Full Text:
    Rodriguez, Daniel and Katie Leonard, Jason Muhlestein, Ratanak So, Ryan Mansergh, Kevin Stewart, Mengjun Li