Exploració per autor "Comerón Tejero, Adolfo"
Ara es mostren els items 53-72 de 219
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Compact lidar system using laser diode, binary continuous wave power modulation, and an avalanche photodiode-based receiver controlled by a digital signal processor
Ardanuy Dellà, Antoni; Comerón Tejero, Adolfo (2018-04-18)
Article
Accés obertWe analyze the practical limits of a lidar system based on the use of a laser diode, random binary continuous wave power modulation, and an avalanche photodiode (APD)-based photereceiver, combined with the control and ... -
Comparison between the Kalman and the non-linear least-squares estimators in low signal-to-noise ratio lidar inversion
Rocadenbosch Burillo, Francisco; Sicard, Michaël; Comerón Tejero, Adolfo; Md. Reba, Mohd Nadzri (2008)
Text en actes de congrés
Accés obertThis works departs from previously published results of the authors and focus on joint estimation and time evolution of the atmospheric backscatter profile and a range-independent lidar ratio by means of 1) adaptive extended ... -
Concept design of a multiwavelength aerosol lidar system with mitigated diattenuation effects and depolarization-measurement capability
Comerón Tejero, Adolfo; Sicard, Michaël; Vidal Calvo, Eric; Barragán Cuesta, Rubén; Muñoz Porcar, Constantino; Rodríguez Gómez, Alejandro Antonio; Tiana Alsina, Jordi; Rocadenbosch Burillo, Francisco; García Vizcaíno, David (EDP Sciences, 2016)
Comunicació de congrés
Accés obertIt is known that the retrieval of aerosol extinction and backscatter coefficients from lidar data acquired through so-called total-power channels – intended to measure the backscattered power irrespective of the polarization ... -
Conmutador de microondas con transistor MESFET encapsulado
Comerón Tejero, Adolfo; Elias Fusté, Antoni (1985)
Text en actes de congrés
Accés obertA packaged GaAs MESFET has been used to implement a fast switch at frequencies around 12 GHz. The insertion loss in the ON state is approximately 2 dB between 9 and 13 GHz. In the OFF state the insertion loss can be higher ... -
Considerations about the determination of the depolarization calibration profile of a two-telescope lidar and its implications for volume depolarization ratio retrieval
Comerón Tejero, Adolfo; Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël; Barragán Cuesta, Rubén; Muñoz Porcar, Constantino; Rocadenbosch Burillo, Francisco; Granados Muñoz, María José (Multidisciplinary Digital Publishing Institute (MDPI), 2018-06-04)
Article
Accés obertWe propose a new method for calculating the volume depolarization ratio of light backscattered by the atmosphere and a lidar system that employs an auxiliary telescope to detect the depolarized component. It takes into ... -
Contribución de la red de lidares EARLINET a la infraestructura europea de investigación atmosférica ACTRIS (Aerosols, Clouds, and Trace Gases Infrastructure Network).
Comerón Tejero, Adolfo; Sicard, Michaël; Rocadenbosch Burillo, Francisco (2012)
Text en actes de congrés
Accés obert -
Contribution of EARLINET/ACTRIS to the summer 2013 special observing period of the ChArMEx project: monitoring of a Saharan dust event over the western and central Mediterranean
Sicard, Michaël; Barragán Cuesta, Rubén; Muñoz Porcar, Constantino; Comerón Tejero, Adolfo; Mallet, Marc; Dulac, F; Pelon, Jacques; Alados Arboledas, Lucas; Amodeo, Aldo; Boselli, Antonella; Bravo Aranda, Juan Antonio; D'Amico, Giuseppe; Granados Muñoz, María José; Leto, Giuseppe; Guerrero Rascado, Juan Luis; Madonna, Fabio; Mona, Lucia; Pappalardo, Gelsomina; Perrone, Maria-Rita; Burlizzi, Pasquale; Rocadenbosch Burillo, Francisco; Rodríguez Gómez, Alejandro Antonio; Scollo, Simona; Spinelli, N.; Titos, Gloria; Wang, Xuan; Zanmar Sanchez, Ricardo (2016-10-22)
Article
Accés obertIn the framework of the Chemistry-Aerosol Mediterranean Experiment (ChArMEx; http://charmex.lsce.ipsl.fr/) initiative, a field campaign took place in the western Mediterranean Basin between 10 June and 5 July 2013 within ... -
Coupling optimization of point contact detectors and mixers
Bolomey, Jean Charles; Comerón Tejero, Adolfo (Institute of Electrical and Electronics Engineers (IEEE), 1979)
Text en actes de congrés
Accés obert -
Current research in lidar technology used for the remote sensing of atmospheric aerosols
Comerón Tejero, Adolfo; Muñoz Porcar, Constantino; Rocadenbosch Burillo, Francisco; Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël (MDPI AG, 2017-06-20)
Article
Accés obertLidars are active optical remote sensing instruments with unique capabilities for atmospheric sounding. A manifold of atmospheric variables can be profiled using different types of lidar: concentration of species, wind ... -
Depolarization channel for barcelona lidar. Implementation and preliminary measurements
Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël; Muñoz Porcar, Constantino; Barragán Cuesta, Rubén; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Vidal Calvo, Eric (EDP Sciences, 2018)
Comunicació de congrés
Accés obertA new depolarization channel has beenimplemented in the BarcelonaTech University(UPC) multi-wavelength lidar system. The opticaland mechanical designs are presented. The specialconfiguration of the total power channel is ... -
Design methodology of a ceilometer lidar prototype
Gregorio, Eduard; Rocadenbosch Burillo, Francisco; Comerón Tejero, Adolfo (2007)
Text en actes de congrés
Accés restringit per política de l'editorialThis article presents step-by-step applied methodology to design a 905-nm 5-kHz rep. rate diode-laser biaxial lidar ceilometer prototype beginning from the definition of initial specs, and related trade-offs to the first ... -
Determination of the mixing layer height from regular lidar measurements in the Barcelona area
Sicard, Michaël; Pérez López, Carlos; Comerón Tejero, Adolfo; Baldasano Recio, José María; Rocadenbosch Burillo, Francisco (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2003)
Text en actes de congrés
Accés obertRegular aerosol backscatter measurements using an elastic-backscatter lidar were performed between May 2000 and November 2002 in Barcelona (Spain), in the frame of EARLINET (European Aerosol Research Lidar Network). The ... -
Diffuse sunlight based calibration of the water vapor channel in the UPC Raman lidar
Muñoz Porcar, Constantino; Comerón Tejero, Adolfo; Sicard, Michaël; Barragán Cuesta, Rubén; García Vizcaíno, David; Rodríguez Gómez, Alejandro Antonio; Rocadenbosch Burillo, Francisco (EDP Sciences, 2017)
Comunicació de congrés
Accés obertA method for determining the calibration factor of the water vapor channel of a Raman lidar, based on zenith measurements of diffuse sunlight and on assumptions regarding some system parameters and Raman scattering models, ... -
Dimensionless parameterization of lidar for laser remote sensing of the atmosphere and its application to systems with SiPM and PMT detectors
Agishev, Ravil R.; Comerón Tejero, Adolfo; Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël (2014-05-20)
Article
Accés obertIn this paper, we show a renewed approach to the generalized methodology for atmospheric lidar assessment, which uses the dimensionless parameterization as a core component. It is based on a series of our previous works ... -
Dimensionless parameters for lidar performance characterization
Comerón Tejero, Adolfo; Agishev, Ravil R. (SPIE, 2014)
Text en actes de congrés
Accés restringit per política de l'editorialA set of three dimensionless parameters is proposed to characterize lidar systems. Two of them are based on an asymptotic approximation of the output signal-to-noise ratio as a function of the input optical power reaching ... -
Direct, longwave radiative forcing of mineral dust: improvement of its estimation by means of tools recently developed by the EARLINET community
Sicard, Michaël; Muñoz Porcar, Constantino; Comerón Tejero, Adolfo; Rodríguez Gómez, Alejandro Antonio; Rocadenbosch Burillo, Francisco; Barragán Cuesta, Rubén (EDP Sciences, 2016)
Text en actes de congrés
Accés obertThe objective of this work is to investigate how the knowledge of the vertically-resolved fine and coarse mode aerosol optical depth modifies the longwave radiative forcing. Since relatively little the EARLINET (European ... -
Diseño de filtros de microondas mediante la teoría del acoplamiento modal
Bara, Javier; Comerón Tejero, Adolfo (Universidad de Sevilla, 1984)
Text en actes de congrés
Accés obertThe behaviour of several non-independent resonant circuits is approached from coupled mode theory, the formulation of the energy (Hamiltonian) for the system and the Bethe theory for coupling through apertures. The design ... -
Diseño de un sistema lidar para la monitorización de la dispersión elástica en al atmósfera
Rocadenbosch Burillo, Francisco; Puente Baliarda, Carles; Comerón Tejero, Adolfo; Rodríguez de Torres, Alejandro (UNIVERSIDAD DE VALLADOLID URSI, UNIVERSIDAD DE VALLADOLID, 1995)
Text en actes de congrés
Accés obertThis conununication describes the main characteristics and design trade-offs of an atmospheric lidar for aerosol detection using a Nd:YAG laser transmitter. -
Dispositivos no lineales en el infrarrojo: diodos MIM. Funcionamiento y Aplicaciones
Comerón Tejero, Adolfo (1981)
Text en actes de congrés
Accés obertMetal-insulator-metal (MIM) diodes are the fastest classical mixers and rectifiers, with operating frequencies ranging from DC to the near infrared. Their operating principles and applications are reviewed. -
EARLINET approach to optimisation of individual network instruments with the aim of homogenisation of aerosol data products and increased data coverage
Apituley, Arnoud; Freudenthaler, Volker; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco (2008)
Text en actes de congrés
Accés obertThe European Aerosol Research LIdar NETwork (EARLINET) is an aerosol lidar network on a continental scale. EARLINET is now a leading network in qualitycontrolled quantitative aerosol profiling performing a schedule of ...