Now showing items 1-20 of 185

    • 20/30 GHz front-end for the TMS-7 receiving station of the OLYMPUS satellite 

      Artal, E; Bará, J; Berenguer Sau, Jordi; Comerón Tejero, Adolfo; Corbella Sanahuja, Ignasi; Pradell i Cara, Lluís (1989)
      Conference report
      Open Access
      The authors present the 20/30-GHz front-end of the TMS-7 station for performing the measurement of the flux density of one or more signal carriers received from the OLYMPUS satellite. The front-end is composed of two ...
    • A 1-D radiative transfer study of mineral dust during CHARMEX/ADRIMED 2013 campaign 

      Granados Muñoz, María José; Sicard, Michaël; Román Díez, Roberto; Benavent Oltra, Pablo; Barragán Cuesta, Rubén; Brogniez, G.; Denjean, Cyrielle; Alados-Arboledas, L; Muñoz Porcar, Constantino; Rodríguez Gómez, Alejandro Antonio; Comerón Tejero, Adolfo (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      A 1-D radiative transfer study is presented based on the measurements performed at Granada during a dust event within the framework of the ChArMEx/ADRIMED (Chemistry-Aerosol Mediterranean Experiment/Aerosol Direct Radiative ...
    • A general analysis of error in noise measurement systems 

      Pradell i Cara, Lluís; Comerón Tejero, Adolfo; Ramírez González, Alejandro (Institute of Electrical and Electronics Engineers (IEEE), 1988)
      Conference report
      Open Access
      General and approximated expressions are presented which allow the identification and quantification of errors in noise figure measurements that use the Y-factor method. This formulation is a generalization of that in /2/ ...
    • A Methodology for investigating dust model performance using synergistic EARLINET/AERONET dust concentration retrievals 

      Binietoglou, Ioannis; Basart, Sara; Alados Arboledas, Lucas; Baldasano Recio, José María; Comerón Tejero, Adolfo; Muñoz Porcar, Constantino; Rocadenbosch Burillo, Francisco; Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël (2015-09-04)
      Article
      Open Access
      Systematic measurements of dust concentration profiles at a continental scale were recently made possible by the development of synergistic retrieval algorithms using combined lidar and sun photometer data and the establishment ...
    • About the potential of lidars with different photodetectors under daytime sky radiation 

      Agishev, Ravil R.; Comerón Tejero, Adolfo; Gilerson, Alexander (2015)
      Conference report
      Open Access
      Results of theoretical analysis and experimental developments implemented as advanced methods and means to improve a noise-immunity of lidar systems for practical applications are discussed. A particular attention is paid ...
    • Actividades españolas en el marco del proyecto CHARMEX desde 2009: un resumen 

      Sicard, Michaël; Pey, Jorge; Cerro, José Carlos; Lange Vega, Diego; Caballero, Sandra; Tovar Sanchez, Antonio; Morales Baquero, Rafael; Comerón Tejero, Adolfo; Bujosa, Carles; Querol Carceller, Xavier; Artiñano, Begoña; Alados Arboledas, Lucas; Alastuey, Andres; Rocadenbosch Burillo, Francisco; Muñoz, Alvaro; Muñoz Porcar, Constantino; García Vizcaíno, David; Bach, Jordi; Bush, Xavier (2014)
      Conference report
      Open Access
      El proyecto ChArMEx (Chemistry-Aerosol Mediterranean Experiment) es una iniciativa francesa cuyo objetivo es desarrollar y coordinar las acciones de investigación regionales para una evaluación científica de la situación ...
    • Adaptive Filter Solution For Processing Lidar Returns: Optical Parameter Estimation 

      Rocadenbosch Burillo, Francisco; Vázquez Grau, Gregorio; Comerón Tejero, Adolfo (OPTICAL SOC AMER, 1998-01-31)
      Article
      Open Access
      Joint estimation of extinction and backscatter simulated profiles from elastic-backscatter lidar return signals is tackled by means of an extended Kalman filter (EKF). First, we introduced the issue from a theoretical point ...
    • Adaptive filter solution for processing lidar returns: optical parameter estimation 

      Rocadenbosch Burillo, Francisco; Vázquez Grau, Gregorio; Comerón Tejero, Adolfo (1998-10)
      Article
      Restricted access - publisher's policy
      Joint estimation of extinction and backscatter simulated profiles from elastic-backscatter lidar return signals is tackled by means of an extended Kalman filter (EKF). First, we introduced the issue from a theoretical point ...
    • Advanced millimeter wave technology for mobile communications 

      Pradell i Cara, Lluís; Corbella Sanahuja, Ignasi; Comerón Tejero, Adolfo; Bará Temes, Francisco Javier; Artal, E.; Torres Torres, Francisco; Purroy, Francesc; Barlabe Dalmau, Antoni; Sales, V. (Institute of Electrical and Electronics Engineers (IEEE), 1993)
      Conference report
      Open Access
    • Aerosol closure study by lidar, Sun photometry, and airborne optical counters during DAMOCLES filed campaign at El Arenosillo sounding station, Spain 

      Guerrero Rascado, Juan Luis; Andrey, J.; Sicard, Michaël; Comerón Tejero, Adolfo; Pujadas Cordero, Manuel; Molero, Francisco; Rocadenbosch Burillo, Francisco; Pedrós Esteban, Roberto; Serrano-Vargas, O.; Gil Ojeda, Manuel; Olmo, F. J.; Lyamani, H.; Navas Guzmán, Francisco; Alados Arboledas, Lucas (American Geophysical Union (AGU), 2011-01-26)
      Article
      Restricted access - publisher's policy
      We present a comparison of aerosol properties derived from in situ and remote sensing instruments during DAMOCLES campaign, aimed at investigating the equivalence between the instrumentation and methodologies employed by ...
    • Aerosol lidar intercomparison in the framework of SPALINET-The Spanish lidar network: methodology and results 

      Rocadenbosch Burillo, Francisco; Sicard, Michaël; Molero, Francisco; Guerrero Rascado, Juan Luis; Pedrós, Roberto; Expósito, Francisco Javier; Córdoba Jabonero, Carmen; Bolarín, Jose Miguel; Comerón Tejero, Adolfo; Moreno, José Maria; Navas Guzmán, Francisco; Requena, Alberto; Gil, Manuel; Pedro Díaz, Juan; Martínez Lozano, José Antonio; Alados Arboledas, Lucas; Pujades, Manuel (IEEE Press. Institute of Electrical and Electronics Engineers, 2009-10)
      Article
      Open Access
      Abstract—A group of eight Spanish lidars was formed in order to extend the European Aerosol Research Lidar Network–Advanced Sustainable Observation System (EARLINET-ASOS)project. This study presents intercomparisons at the ...
    • Aerosol stratification characterization of an astronomical site by means of a backscatter lidar at the Roque de los Muchachos Observatory 

      Jiménez Fuensalida, Jesús; Muñoz Tuñón, Casiana; Sicard, Michaël; Tomás Martínez, Sergio; Md. Reba, Mohd Nadzri; Comerón Tejero, Adolfo; Batet Torrell, Óscar; Muñoz Porcar, Constantino; Rodríguez Gómez, Alejandro Antonio; Rocadenbosch Burillo, Francisco (2009)
      Conference report
      Open Access
      The Roque de los Muchachos Observatory, located on the island of La Palma in the Canary Islands, is home of many astronomical facilities. In the context of the Extremely Large Telescope Design Study, an intensive lidar ...
    • An architecture providing depolarization ratio capability for a multi-wavelength Raman lidar: implementation and first measurements 

      Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël; Granados Muñoz, María José; Ben Chahed, Enis; Muñoz Porcar, Constantino; Barragán Cuesta, Rubén; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Vidal, Eric (MDPI AG, 2017-12-20)
      Article
      Open Access
      A new architecture for the measurement of depolarization produced by atmospheric aerosols with a Raman lidar is presented. The system uses two different telescopes: one for depolarization measurements and another for ...
    • An automatic aerosol classification for earlinet: application and results 

      Papagiannopoulos, N.; Mona, Lucia; Amiridis, Vassilis; Binietoglou, Ioannis; D'Amico, Giuseppe; Schwarz, A.; Alados-Arboledas, L; Amodeo, Aldo; Apituley, Arnoud; Baars, Holger; Bortoli, D.; Comerón Tejero, Adolfo; Guerrero Rascado, Juan Luis; Kokkalis, P; Nicolae, D.; Papayannis, Alexander; Pappalardo, Gelsomina; Wandinger, Ulla; Wiegner, M. (2018)
      Conference report
      Open Access
      Aerosol typing is essential for understanding the impact of the different aerosol sources on climate, weather system and air quality. An aerosol classification method for EARLINET (European Aerosol Research Lidar Network) ...
    • An automatic observation-based aerosol typing method for EARLINET 

      Papagiannopoulos, N.; Mona, Lucia; Amodeo, Aldo; D'Amico, Giuseppe; Comerón Tejero, Adolfo; Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël (European Geosciences Union (EGU), 2018-11-06)
      Article
      Open Access
      We present an automatic aerosol classification method based solely on the European Aerosol Research Lidar Network (EARLINET) intensive optical parameters with the aim of building a network-wide classification tool that ...
    • An inter-mountain optical-communications link experiment in Spain 

      Bará Temes, Francisco Javier; Comerón Tejero, Adolfo; Belmonte Molina, Aniceto (1990-03)
      Article
      Open Access
      In support of the Agency's SILEX optical-communications project, a first evaluation of the suitability of the Canary Islands (Spain) for an optical communications test range has been conducted. The low atmospheric attenuation ...
    • Análisis de errores en sistemas de medida de ruido. Sistema de medida de parámetros de ruido de transistores de microondas 

      Pradell i Cara, Lluís; Comerón Tejero, Adolfo; Ramírez Marín, A.; Martorell, Jm (Universidad Politécnica de Madrid (UPM), 1988)
      Conference report
      Open Access
    • Análisis de stubs radiales en circuito abierto como elementos de circuito microstrip 

      de los Reyes, Elías; Ferrando, Miguel; Comerón Tejero, Adolfo (Unión Científica Internacional de Radio (URSI), 1983)
      Conference report
      Open Access
      This paper presents an analysis of radial microstrip transmission lines, practical design corrections and comparison with measurements perfomed on Duroid 5880. It is proposed the use of the radial lines in combination with ...
    • Anemómetro laser doppler para la medida de dos componentes de velocidad para aplicaciones hidrodinamicas (2d-lda) 

      García Vizcaíno, David; Dios Otín, Víctor Federico; Rodríguez Gómez, Alejandro Antonio; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Muñoz Porcar, Constantino (Universidad Europea de Madrid, 2001)
      Conference report
      Open Access
      A Laser Doppler Anemometer system designed to measure two components of the velocity vector in fluids is presented. The scheme followed is the differential technique with backward scattering ...
    • Application of CAD load-pull techniques in mixer design 

      Velázquez, A.; Lázaro Guillén, Antoni; Pradell i Cara, Lluís; Comerón Tejero, Adolfo (2003-02)
      Article
      Open Access
      This work describes the application of a commercial CAD software to implement load-pull techniques in the design of microwave mixers. This method is used to generate conversion-loss regions when a diode is pumped and ...