Remote Sensing

This work quantifies water contamination in jet fuel (Jet A-1), using silica-based Bragg gratings. The optical sensor geometry exposes the evanescent optical field of a guided mode to enable refractometery. Quantitative analysis is made in addition to the observation of spectral features consistent with emulsification of water droplets and Stokes’ settling. Measurements are observed for cooling and heating cycles between ranges of 22oC and -60oC. The maximum spectral sensitivity for water contamination was 2.4 pm/ppm-v with a resolution of < 5 ppm-v.

  • Transportation
  • Last Updated On: 
    Wed, 12/12/2018 - 12:15

    This work quantifies water contamination in jet fuel (Jet A-1), using silica-based Bragg gratings. The optical sensor geometry exposes the evanescent optical field of a guided mode to enable refractometery. Quantitative analysis is made in addition to the observation of spectral features consistent with emulsification of water droplets and Stokes’ settling. Measurements are observed for cooling and heating cycles between ranges of 22oC and -60oC. The maximum spectral sensitivity for water contamination was 2.4 pm/ppm-v with a resolution of < 5 ppm-v.

  • Transportation
  • Last Updated On: 
    Wed, 12/12/2018 - 12:13

    The Doppler spectrum (DS) of the signal backscattered at the low incidence angles from the sea surface was measured by the Ka-band radar in an experiment on a marine oceanographic platform on October 5, 2016. The dependence of DS shift and width on incidence angle and azimuth angle is given.

  • Remote Sensing
  • Last Updated On: 
    Wed, 12/12/2018 - 09:59

    Run_IMA_proceure.R is an script that fills the clouds of the 3 target images or the complete neighborhood of 27 images of LST and NDVI remote sensing data in Navarre(Spain) and estimates the standard errors.

  • Remote Sensing
  • Last Updated On: 
    Mon, 03/04/2019 - 07:24

    LF-module-assisted analog lab-on-a-chip measurements with R- (650 nm), G- (532 nm), B- (405 nm) laser sources

     

    00:59 - Wavelenth: 650 nm (laser diode);

    01:25 - Wavelenth: 405 nm (DPSSL);

    01:43 - Wavelenth: 532 nm (DPSSSL);

     

    Acknowledgements:

  • Image Fusion
  • Last Updated On: 
    Thu, 11/08/2018 - 10:34
    Citation Author(s): 
    Nasirov P.A., Gradov O.V.

    Automatic classification of sensitive content in remote sensing images, such as drug crop sites, is a promising task as it can aid law-enforcement institutions fighting illegal drug dealers worldwide, while, at the same time, it can help monitoring legalized crops in countries that regulate them. However, existing art on detecting drug crops from remote sensing images is limited in some key factors not taking full advantage of the available hyperspectral info for analysis.

  • Remote Sensing
  • Last Updated On: 
    Tue, 06/04/2019 - 10:58
    Citation Author(s): 
    Anselmo Ferreira, Siovani C. Felipussi, Ramon Pires, Sandra Avila, Geise Santos, Jorge Lambert, Jiwu Huang and Anderson Rocha

    High-fidelity, physics-based multichannel radar data cube provided by the DARPA KASSPER project. This data is ideal for analyzing space-time adaptive processing (STAP) algorithms since both sample data and truth data are provided.

  • Geoscience and Remote Sensing
  • Last Updated On: 
    Thu, 11/08/2018 - 10:34
    Citation Author(s): 
    J. S. Bergin, J. R. Guerci

    This dataset contains aerial images acquired with a medium format digital camera and point clouds collected using an airborne laser scanning (ALS) unit, as well as ground control points and direct georeferencing data. The flights were performed in 2014 over an urban area in Presidente Prudente, State of São Paulo, Brazil, using different flight heights. These flights covered several features of interest for research, including buildings of different sizes and roof materials, roads and vegetation.

  • Geoscience and Remote Sensing
  • Last Updated On: 
    Thu, 11/08/2018 - 10:34
    Citation Author(s): 
    Antonio Maria Garcia Tommaselli, Member, IEEE, Maurício Galo, Member, IEEE, Thiago Tiedtke dos Reis, Roberto da Silva Ruy, Marcus Vinicius Antunes de Moraes and Wander Vieira Matricardi

    This study deals with derivation of an exact expressions for the current distribution and the input impedance of a circular loop antenna over a lossy half-space. the analysis is based on the image method, the direct integration of the vector potential, and the spherical function expansion. the results for the current distribution of this study are in very good agreement with those corresponding results available in the literature, which checks the correctness of formulations of the study.   

     

     

  • Communications
  • Last Updated On: 
    Thu, 11/08/2018 - 10:34
    Citation Author(s): 
    Osman M. Alsemaid, Sameir M. Ali Hamed, and Saif A. Mahmood

    In tropical/subtropical regions, the favorable climate associated with the use of agricultural technologies, such as no-tillage, minimum cultivation, irrigation, early varieties, desiccants, flowering inducing and crop rotation, makes agriculture highly dynamic. In this paper, we present the Campo Verde agricultural database. The purpose of creating and sharing these data is to foster advancement of remote sensing technology in areas of tropical agriculture, primarily the development and testing of methods for crop recognition and agricultural mapping.

  • Geoscience and Remote Sensing
  • Last Updated On: 
    Thu, 11/08/2018 - 10:34
    Citation Author(s): 
    Ieda Del'Arco Sanches, Raul Queiroz Feitosa, Pedro Marco Achanccaray Diaz, Marinalva Dias Soares, Alfredo Jose Barreto Luiz, Bruno Schultz, Luis Eduardo Pinheiro Maurano

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