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Observació de la terra amb sensors pasius de microones
(1994)
Article.
Accés obert
Article.
Accés obert
Calibration of Raman lidar water vapor mixing ratio measurements using zenithal measurements of diffuse sunlight and a radiative transfer model
(Institute of Electrical and Electronics Engineers (IEEE), 2018-07-20)
Article.
Accés obert
Article.
Accés obert
Among the different techniques available for measuring the atmospheric water vapor content, Raman lidars stand out as accurate instruments providing detailed profiles with high temporal and altitude resolution. Their ...
An EARLINET early warning system for atmospheric aerosol aviation hazards
(European Geosciences Union (EGU), 2020-09-15)
Article.
Accés obert
Article.
Accés obert
A stand-alone lidar-based method for detecting airborne hazards for aviation in near real time (NRT) is presented. A polarization lidar allows for the identification of irregular-shaped particles such as volcanic dust and ...
Nodal sampling: a new image reconstruction algorithm for SMOS
(Institute of Electrical and Electronics Engineers (IEEE), 2016-04-01)
Article.
Accés obert
Article.
Accés obert
Soil moisture and ocean salinity (SMOS) brightness temperature (TB) images and calibrated visibilities are related by the so-called G -matrix. Due to the incomplete sampling at some spatial frequencies, sharp transitions ...
Analysis, evaluation, and comparison of polarimetric SAR speckle filtering techniques
(2014-04)
Article.
Accés restringit per política de l'editorial
Article.
Accés restringit per política de l'editorial
Speckle noise filtering on polarimetric SAR (PolSAR) images remains a challenging task due to the difficulty to reduce a scatterer-dependent noise while preserving the polarimetric information and the spatial information. ...
Leaky modes in multilayer anisotropic optical waveguides
(1990)
Article.
Accés restringit per política de l'editorial
Article.
Accés restringit per política de l'editorial
The propagation characteristics of the leaky modes in planar anisotropic waveguides with a multilayer structure have been investigated by means of a compact rigorous formalism. The leakage losses and leaky transition angle ...
PAU-SA: a synthetic aperture interferometric radiometer test bed for potential improvements in future missions
(2012-06)
Article.
Accés obert
Article.
Accés obert
The Soil Moisture and Ocean Salinity (SMOS) mission is an Earth Explorer Opportunity mission from the European Space Agency (ESA). Its goal is to produce global maps of soil moisture and ocean salinity using the Microwave ...
Self-homodyne detection of the light orbital angular momentum
(2012-07-15)
Article.
Accés restringit per política de l'editorial
Article.
Accés restringit per política de l'editorial
A simple optical system for the self-homodyne detection of the orbital angular momentum (OAM) carried by optical
beams is introduced. We propose two different schemes based on the use of optical hybrids, which could detect ...
Robust array configuration for a microwave interferometric radiometer: application to the geoSTAR project
(IEEE Institute of Electrical and Electronics Engineers, 2007-01-31)
Article.
Accés obert
Article.
Accés obert
The Geostationary Synthetic Thinned Array Radiometer represents a promising new approach to microwave atmospheric sounding from geostationary orbit based on passive interferometry. One of the major concerns about the ...
Digital equalization of time-delay array receivers on coherent laser communications
(2017-01-15)
Article.
Accés obert
Article.
Accés obert
Field conjugation arrays use adaptive combining techniques on multi-aperture receivers to improve the performance of coherent laser communication links by mitigating the consequences of atmospheric turbulence on the ...