• Algoritmos de Dithering con tiempo de procesamiento reducido 

  Ortiz-Rodríguez, Samira E (2016)

  En esta investigación se trabajó con el algoritmo Pendiente Máxima (SD o Steepest Descent, por sus siglas en inglés) para hallar una señal de dither (señal aleatoria) que hace que el ruido de cuantización (diferencia entre ...

• Algorithms for image classification using wavelets and fusion methods 

  Yunes-Saito, Yuki C. (2005)

  This work presents a set of algorithms for feature extraction and image classification using wavelet transform and fusion methods. First we use wavelet transform as a feature extraction method. We present some basic ...

• Implementation of a phased array antenna using digital beamforming 

  Torres-Rosario, Juan A. (2005)

  This work presents the design of a transmitter/receiver Digital Beamformer (DBF) based on the mathematical model of a far-field plane wave incident on a sensor array. Simulations of a DBF transmitter and receiver are ...

• A switched opamp comparator to improve the conversion rate of low-power low-voltage successive approximation adcs 

  Vega-de la Cruz, Carlos A. (2005)

  The continued drive toward technology scaling in VLSI design has provided greater integration levels in silicon chips. Thanks to the reduction in minimum feature size and the corresponding decrease in power supply voltage, ...

• Risk assessment of an electric power system using intelligent power routers 

  Torres-Ortolaza, Carlos M. (2005)

  We seek to determine the reliability of Intelligent Power Routers (IPR) and the reliability change of an electric power system (PS) operated with and without IPR. The IPR is our module to provide scalable coordination in ...

• Ice water content and reflectivity retrieval from cirrus clouds using millimeter-wave radar and in-situ ice crystal airborne data 

  Morales-Fernández, José (2005)

  Data collected in March 2000 during the Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Cloud Intensive operational period (Cloud IOP) at the Cloud and Radiation Testbed (CART) site in Lamont, Oklahoma ...

• Material type and soil moisture determination based on radar response 

  Mattei-Lago, Enrico A. (2005)

  Ground Penetrating Radar, GPR, is a widely used tool for probing the sub-surface in such applications as pavement monitoring, humanitarian de-mining, and exploratory geophysics, among others. Its advantage lies in that it ...

• Design and implementation of a transceiver and a microstrip corporate feed for solid state x-band radar 

  Sánchez-Barbetty, Mauricio (2005)

  The design of a corporate feed for an X band frequency scanned microstrip antenna array and a surface mount transceiver are presented. The power distribution generated by the corporate feed network is based on a Taylor ...

• Guidance and monitoring of liquid-filled tubes using time domain acoustic reflectometry 

  Ordóñez-Estévez, Sandra Liliana (2005)

  Time domain acoustic reflectometry is proposed in this research as a method to detect atherosclerosis, estimating the location and extension of arterial obstructions by determining what is ahead of the catheter tip (“forward ...

• Comparative framework for service reliability in electric distribution systems 

  Rodríguez-Sanabria, Doeg (2005)

  Reliability indices are becoming the cornerstone for a liberalized energy market, and the main component of performance based rates (PBRs). Yet, comparison of reliability indices from intrinsically different systems provides ...

• Measuring vegetation health using ground penetrating radar and its correlation with data from spectral radiometer 

  Torres-Candelaria, Maritza (2005)

  Changes in vegetation can affect our health, the environment and the economy. Understanding this, twenty years ago scientists began to use satellite remote sensors to monitor major fluctuations in vegetation and understand ...

• Hyperspectral change detection using temporal principal component analysis 

  Ortiz-Rivera, Vanessa (2005)

  This work deals with the detection of changes using hyperspectral images. Change detection is the process of automatically identifying and analyzing regions that have undergone spatial or spectral changes from multi temporal ...

• Determination of favorable conditions for the development of a wind power farm in puerto rico 

  Ramos-Robles, Carlos Antonio (2005)

  Development of a wind farm in the east coast of Puerto Rico has the potential of being an attractive economic proposal. This is so because the best wind resource of Puerto Rico is located on its east shore. Reliable wind ...

• Determining noise in hyperspectral imagery for the application of oversampling to supervised classification 

  Laracuente-Díaz, Jaime José (2005)

  A hyperspectral sensor imager has many (~200) contiguous spectral bands. It is this number and bandwidth of spectral bands that defines the spectral resolution of a sensor. In general, having a greater number of spectral ...

• Design of a reconfiguration controller for a dc zonal distribution system 

  Estremera-Román, Alma (2005)

  The use of DC Zonal System (DCZEDS) is evaluated as a potential simulation testbed for self-reconfigurable control research in electric power distribution systems. The DCZEDS is a SIMULINKTM implementation of a Ship DC ...

• A variable dimension gauss-newton method for ill- conditioned parameter estimation with application to a synchronous generator 

  Huaman-Qquellon, Jorge L. (2005)

  This thesis presents a variable dimension Gauss-Newton (VDGN) parameter estimation algorithm that can be used for fault detection, and diagnosis of a synchronous generator. The algorithm is derived as an extension of the ...

• Design and implementation of a four terminal floating amplifier and its application in analog electronics 

  García-Rivera, José A. (2005)

  The field of analog electronics has developed and matured for the past two decades. Within this field, design of analog amplifiers has received attention due to changes in technology. Amplifier circuits, considered analog ...

• Benefits of electric generation displacement using solar thermal water heaters 

  Jiménez-González, Jennifer (2005)

  This work presents an estimate in increased efficiency of the power system, due to the reduction of electric losses at the transmission and distribution levels. It further explores the environmental impact due to generation ...

• Dsd characterization and computations of expected reflectivity using data from a two-dimensional video disdrometer deployed in puerto rico 

  Maeso-González, José G. (2005)

  Accurate estimation of drop size distribution (DSD) for all rain rates is necessary to develop and validate rainfall retrieval algorithms. The Two-Dimensional Video Disdrometer (2DVD) presented in this research offers a ...

• Characterization of log periodic folded slot antenna array 

  Del Río-Del Río, David (2005)

  This work studies the log-periodic folded-slot array (LPFSA) using Design of Experiments (DOE) techniques. The LPFSA impedance, gain and time-domain responses were analyzed and regression models were used to predict the ...

View more