Título:
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Sun effects in 2D aperture synthesis radiometry imaging and their cancellation
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Autor/a:
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Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena; Duffo Ubeda, Núria; Zapata, M; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Barrena, V
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
Abstract:
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The Microwave Imaging Radiometer by Aperture
Synthesis (MIRAS) is the single payload of the European Space
Agency’s (ESA) Soil Moisture and Ocean Salinity (SMOS) Earth
Explorer Opportunity mission. MIRAS will be the first two-dimensional
aperture synthesis radiometer for earth observation.
Two-dimensional aperture synthesis radiometers can generate
brightness temperature images by a Fourier synthesis process
without mechanical antenna steering. To do so and have the
necessary wide swath for earth observation, the array is formed by
small and low directive antennas, which do not attenuate enough
bright noise sources that may interfere with the measurements.
This study analyzes the impact of the radio-frequency emission
from the sun in the SMOS mission, reviews the basic image
reconstruction algorithms, and proposes a technique to minimize
sun effects. |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació -Antenna arrays -Interferometry -Radiometry -Signal theory (Telecommunication) -Senyal, Teoria del (Telecomunicació) |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Artículo |
Editor:
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IEEE Press. Institute of Electrical and Electronics Engineers
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