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Filtering by: Has journal Nonlinear Processes in Geophysics Remove constraint Has journal: Nonlinear Processes in Geophysics Advisor Magana, Mario E. Remove constraint Advisor: Magana, Mario E.

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  • Linear and nonlinear feedback linearization of radio frequency power amplifiers

    Creator:
    Bogya, Robert I.
    Abstract:
    Radio frequency (RF) power amplifiers (PA) are the most power consuming components of a mobile communications unit. They are used to convert the DC power from the battery into RF power delivered to the antenna. In a cell phone it becomes very important to use highly efficient power amplifiers, such...
    Resource Type:
    Masters Thesis
    Full Text:
    , however, they are inherently nonlinear. They introduce distortion in the amplified signal path

  • Multiple Nonlinear Model Predictive Control for a Six-body System Oscillating Water Column Wave Energy Converters Array

    Creator:
    Xu, Zhicheng
    Abstract:
    This research presents the design of three nonlinear model predictive controllers (NMPCs) for floating oscillating water column (OWC) wave energy converters (WECs) array to maximize generated power, augmented with the control of the high-speed stop valves (HSSVs). Key to this design is the development of a high-fidelity discretized model for...
    Resource Type:
    Masters Thesis
    Full Text:
    controller is implemented in discrete time, the nonlinear continuous system (2.6.22) must be discretized in

  • Grid Voltage Frequency Estimation Using an Adaptive Complex Master-Slave Unscented Kalman Filter

    Creator:
    Muñoz Constantine, Juan Pablo
    Abstract:
    Due to the popularity of electronically controlled loads and the widespread use of alternative energy sources such as wind turbines and solar cells, the power quality at the distribution level must be carefully monitored. One of the many different means to monitor power quality is through frequency measurements. Nonlinearities cause...
    Resource Type:
    Masters Thesis
    Full Text:
    Filter to fit nonlinear models. The Extended Kalman Filter (EKF) deals with nonlinearities in the

  • Distributed Dynamic Multi-Area State Estimation with Fusion Technique

    Creator:
    Guo, Jia
    Abstract:
    As the power system grows larger and more complex, real-time monitoring and control become very significant in order to achieve reliable operation of the power system. Before any security assessment can be made or control actions are taken, the reliable estimate of the existing state of the system must be...
    Resource Type:
    Dissertation
    Full Text:
    the measurement vector is nonlinear in nature, the Extended Kalman filter (EKF) is used in most cases

  • A frequency-domain approach to simulating wave energy converter hydrodynamics

    Creator:
    Simmons, Asher
    Abstract:
    Wave energy converter (WEC) devices are complicated systems containing hydrodynamic, mechanical, and electrical elements. WEC design efforts are primarily focused in the time-domain, using frequency-based energy analyses and numerical problem solving approaches that are staples in hydrodynamic design efforts to form the basic information set used in these time-domain development...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Asher Simmons for the degree of Master of Science in Electrical and

  • Variable sampling compensation of networked control systems with delays using neural networks

    Creator:
    Lopez-Echevarria, Daniel
    Abstract:
    In networked control systems (NCS) information or packets usually flow from a sensor or a set of sensors to a remotely located controller. Then the controller processes the received information and sends a series of control commands to the actuators through a communication network which could be either wireless or...
    Resource Type:
    Dissertation
    Full Text:
    particularly interested in the capacity of NN to approximate any nonlinear function. Such characteristics can

  • Adaptive broadband wireless interference mitigation architecture applying higher order statistics algorithm for computer platform

    Creator:
    Wang, Qiwei
    Abstract:
    The broadband wireless interference in a computer platform is resulted by multiple electro-magnetic emission sources. This non-Gaussian interference is proved to be double-sided K-distributed in previous research. With the limitation of transmission power and dimension of the device, interference mitigation is an efficient way to improve received signal bit error...
    Resource Type:
    Masters Thesis
    Full Text:
    OF Qiwei Wang for the degree of Master of Science in Electrical and Computer Engineering

  • A Study of Oscillating Water Column Wave Energy Converters Array Configurations Based on Simulation

    Creator:
    Ding, Siyuan
    Abstract:
    Wave energy is a potentially important renewable clean source of energy that can help solve the energy demand throughout the world. A great deal of research has been conducted in the last few decades and it is now reaching the point of full implementation. In order to compete with other...
    Resource Type:
    Capstone Project
    Full Text:
    In chapter 3, the simulation processes of the implementation of OWC from (Gaebele, 2018) research

  • Immune radio architecture for platform interference

    Creator:
    Alban, Eduardo
    Abstract:
    The decrease of switching times accompanied by the corresponding increase of clock speeds and data rates, contributes to improve the overall system computational performance. At the same time, they also affect wireless communications due to an increment in the emissions of electromagnetic radiation on the radio bands. In this dissertation...
    Resource Type:
    Dissertation
    Full Text:
    case of the authors in [9] who have tried to model the experimental data using nonlinear dynamical

  • A peer-to-peer communication system based on Walsh-Hadamard codes for fading environments

    Creator:
    Moranvil, William
    Abstract:
    High data rate transmission has become an important challenge in today digital communication systems. One of the most difficult problems faced by engineers is to transmit data at sufficiently high rates through fading channels. This is the main motivation for the research presented herein. In this thesis, we investigate a...
    Resource Type:
    Masters Thesis
    Full Text:
    THE THESIS OF William Moranvil for the degree of Master of Science in Electrical and Computer