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Ara es mostren els items 160-179 de 219

    • Parameter design of a biaxial lidar ceilometer 

      Gregorio López, Eduard; Rocadenbosch Burillo, Francisco; Tiana Alsina, Jordi; Comerón Tejero, Adolfo; Sanz Cortiella, Ricardo; Rosell Polo, Joan Ramon (2012-07-11)
      Article
      Accés restringit per política de l'editorial
      This paper presents parameter design methodology and related optomechanical engineering of a 905-nm diode-laser biaxial, eye-safe lidar ceilometer prototype for cloud-height monitoring. Starting with a brief review of the ...

    • Performance assessment of a homodyne laser radar for surface displacement monitoring 

      Rodríguez Gómez, Alejandro Antonio; Comerón Tejero, Adolfo; Mesalles Nalda, Eloy (Spie-Int Society Optical Engineering, 2001-12-31)
      Article
      Accés obert

    • Planetary boundary layer height and wind field characterization by means of a lidar at the Teide Observatory in the Canary Islands 

      Sicard, Michaël; Tomás Martínez, Sergio; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Rodríguez Gómez, Alejandro Antonio; Muñoz Porcar, Constantino; Batet Torrell, Óscar (2008)
      Text en actes de congrés
      Accés obert
      A lidar field campaign was performed between 30th June and 4th July 2007 in the Teide Observatory in the Canarian island of Tenerife to characterize the atmosphere of this astrophysical observation site in terms of nocturnal ...

    • PLL de microondas con tiempo de adquisición reducido 

      Berenguer Sau, Jordi; Artal, E.; Corbella Sanahuja, Ignasi; Comerón Tejero, Adolfo (1986)
      Text en actes de congrés
      Accés obert
      The behaviour of a PLL where the VCO is injection-locked to the reference frequency is studied. It is experimentally shown that the phase acquisition time can be reduced relative to the non-injection locked VCO situation. ...

    • PLL de microondas con tiempo de adquisición reducido 

      Berenguer Sau, Jordi; Artal, E.; Corbella Sanahuja, Ignasi; Comerón Tejero, Adolfo (1986)
      Text en actes de congrés
      Accés obert
      The behaviour of a PLL where the VCO is injection-locked to the reference frequency is studied. It is experimentally shown that the phase acquisition time can be reduced relative to the non-injection locked VCO situation. ...

    • PLL's de microondas con el VCO sincronizado por inyección: aplicaciones 

      Berenguer Sau, Jordi; Comerón Tejero, Adolfo; Artal, Eduardo (1989)
      Text en actes de congrés
      Accés obert
      A system which combines the properties of the PLL systems and the injection locking ones is described. Its theoretical behaviour is analysed and some practical applications are discussed. Its performance in these aplications ...

    • Pols, gasos, vent i cendres: radars làser per al sondeig de l’atmosfera 

      Comerón Tejero, Adolfo (Societat Catalana de Tecnologia, 2010-07-15)
      Audiovisual
      Accés obert
      La recent erupció del volcà Eyjafjallajökull és un exemple de l’impacte que els aerosols atmosfèrics poden tenir en el quefer diari de milers de persones i en l’economia d’arreu del món. Aquest esdeveniment ha estat ...

    • Power budget and performance assessment for the RSLAB multispectral elastic/raman lidar system 

      Kumar, Dhiraj; Lange, Diego; Rocadenbosch Burillo, Francisco; Tomas, Sergio; Sicard, Michaël; Muñoz Porcar, Constantino; Comerón Tejero, Adolfo (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The need of a multi-spectral lidar has widely been experienced in last few years with a view to invert the optical and microphysical properties of aerosols and their impact on the climate change. As a part of the EARLINET-GALION ...

    • Practical analytical backscatter error bars for elastic one-component lidar inversion algorithm 

      Rocadenbosch Burillo, Francisco; Md. Reba, Mohd Nadzri; Sicard, Michaël; Comerón Tejero, Adolfo (2010-06-10)
      Article
      Accés obert

    • Profiling of aerosol microphysical properties at several EARLINET/AERONET sites during the July 2012 ChArMEx/EMEP campaign 

      Granados Muñoz, María José; Navas Guzmán, Francisco; Guerrero Rascado, Juan Luis; Bravo Aranda, Juan Antonio; Binietoglou, Ioannis; Nepomuceno Pereira, Sergio; Basart Alpuente, Sara; Baldasano Recio, José María; Belegante, Livio; Chaikovsky, Anatoli; Comerón Tejero, Adolfo; D'Amico, Giuseppe; Muñoz Porcar, Constantino; Rodríguez, Alejandro; Sicard, Michaël; Nickovic, Slobodan; Papayannis, Alexander; Pappalardo, Gelsomina; Wandinger, Ulla; Alados Arboledas, Lucas (European Geosciences Union, 2016-06-09)
      Article
      Accés obert
      The simultaneous analysis of aerosol microphysical properties profiles at different European stations is made in the framework of the ChArMEx/EMEP 2012 field campaign (9-11 July 2012). During and in support of this campaign, ...

    • Quasi-analytical determination of noise-induced error limits in lidar retrieval of aerosol backscatter coefficient by the elastic, two-component algorithm 

      Sicard, Michaël; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Rodríguez Gómez, Alejandro Antonio; Muñoz Porcar, Constantino (2009-01)
      Article
      Accés restringit per política de l'editorial
      The elastic, two-component algorithm is the most common inversion method for retrieving the aerosol backscatter coefficient from ground- or space-based backscatter lidar systems. A quasi-analytical formulation of the ...

    • Radioenlace digital a 11 GHz para telemando y telecontrol 

      Artal, E.; Cardama Aznar, Ángel; Comerón Tejero, Adolfo; Corbella Sanahuja, Ignasi; Elias Fusté, Antoni; Ferrando, Miguel; Jofre Roca, Lluís; de los Reyes, Elías (Institute of Electrical and Electronics Engineers (IEEE), 1984)
      Text en actes de congrés
      Accés obert
      A digital radio-relay link in the band 10.7- 11.7 GHz developed for the remote control system of ENHER is presented. The objectives were the construction of a reliable and yet low-cost transmitter-receiver. To accomplish ...

    • Receptor para TV difundida directamente desde satélites 

      Artal, E.; Cardama Aznar, Ángel; Comerón Tejero, Adolfo; Corbella Sanahuja, Ignasi; Elias Fusté, Antoni; Ferrando, M.; Jofre Roca, Lluís; de los Reyes, Elías (Institute of Electrical and Electronics Engineers (IEEE), 1984)
      Text en actes de congrés
      Accés obert
      The direct broadcast satellite receiver in the 12 GHz band developed in the Electrophysics Department in cooperation with the R & D Departments of Mier Allende, S.A. and Tagra, S.A. is described. It features a low-noise ...

    • Remote sensing mediante lidar en la UPC 

      Rocadenbosch Burillo, Francisco; Sicard, Michaël; Comerón Tejero, Adolfo; Rodríguez Gómez, Alejandro Antonio; Muñoz Porcar, Constantino; López Márquez, Miguel Ángel; García Vizcaíno, David; Agishev, Ravil R. (?, 2003-12-31)
      Article
      Accés obert

    • Remote sensing mediante LIDAR en la UPC 

      Rocadenbosch Burillo, Francisco; Sicard, Michaël; Comerón Tejero, Adolfo; Rodríguez Gómez, Alejandro Antonio; Muñoz Porcar, Constantino; López, Ma Àngels; García Vizcaino, David,; Agishev, Ravil R. (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2003)
      Article
      Accés obert

    • Representativeness of aerosol measurements: EARLINET-CALIPSO correlative study 

      Balis, Dimitris; Pappalardo, Gelsomina; Wandinger, Ulla; Mona, L.; Hiebsch, Anja; Mattis, I.; Linné, Holger; Apituley, Arnoud; Alados Arboledas, Lucas; Rocadenbosch Burillo, Francisco; Pujadas, Manuel; Papayannis, A.; Mamouri, R.E.; Madonna, Fabio; Guerrero Rascado, Juan Luis; Giunta, Aldo; Giannakaki, E.; Freudenthaler, Volker; Comerón Tejero, Adolfo; Spinelli, N.; Wang, Xuan; Wiegner, M. (2010)
      Comunicació de congrés
      Accés obert
      The high variability of tropospheric aerosols, both in space and time, is the main cause of the high uncertainty about radiative forcing related to tropospheric aerosols and their interaction with clouds. Because of the ...

    • Results of site testing using an aerosol, backscatter lidar at the Roque de los Muchachos Observatory 

      Jiménez Fuensalida, Jesús; Muñoz Tuñón, Casiana; Sicard, Michaël; Md. Reba, Mohd Nadzri; Tomás Martínez, Sergio; Comerón Tejero, Adolfo; Batet Torrell, Óscar; Muñoz Porcar, Constantino; Rodríguez Gómez, Alejandro Antonio; Rocadenbosch Burillo, Francisco (2010-06-01)
      Article
      Accés obert
      The Roque de los Muchachos Observatory, located on the island of La Palma in the Canary Islands, is home of many astronomical facilities for its high sky quality. In the context of the Extremely Large Telescope Design ...

    • Scintillation and beam-wander analysis in an optical ground station–satellite uplink 

      Dios Otín, Víctor Federico; Rubio, Juan Antonio; Rodríguez Gómez, Alejandro Antonio; Comerón Tejero, Adolfo (OPTICAL SOC AMER, 2004-07-31)
      Article
      Accés obert

    • Seasonal variability of aerosol optical properties observed by means of a Raman lidar at an EARLINET site over Northeastern Spain 

      Sicard, Michaël; Rocadenbosch Burillo, Francisco; Md. Reba, Mohd Nadzri; Comerón Tejero, Adolfo; Tomás Martínez, Sergio; García Vizcaíno, David; Batet Torrell, Óscar; Barrios Porras, Ricardo Alfonso; Kumar, Dhiraj; Baldasano Recio, José María (2011-01-11)
      Article
      Accés obert
      The annual and seasonal variability of aerosol optical properties observed by means of a Raman lidar over Northeastern Spain has been assessed. The lidar representativeness has first been checked against sun-photometer ...

    • Seasonal variability of aerosol optical properties observed by means of an elastic-Raman lidar over Northeastern Spain 

      Kumar, Dhiraj; Sicard, Michaël; Reba Mohd Nadzri, Md; Rocadenbosch Burillo, Francisco; Comerón Tejero, Adolfo; Tomás Martínez, Sergio; García Vizcaíno, David; Batet Torrell, Óscar; Barrios Porras, Ricardo Alfonso (2010-06-01)
      Comunicació de congrés
      Accés obert
      The annual and seasonal variability of aerosol optical properties observed by means of an elastic-Raman lidar over Northeastern Spain has been assessed. The lidar representativeness has first been checked against un-photometer ...