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RF interference analisys in aperture synthesis interferometric radiometers: Application to L-band MIRAS instrument
Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Bará Temes, Francisco Javier; Capdevila Vives, Joan
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció
Current spaceborne radiometers do not achieve the required spatial resolution demanded by the scientific community due to antenna-size technological limitations. In recent years, several space agencies have been studying aperture synthesis interferometric radiometers as a way of overcoming these limitations, which are more evident at low microwave frequencies (e.g., at L-band), where sea surface salinity and soil moisture can be monitored. Interference is an important issue in any remote sensing instrument, but it is crucial in microwave radiometers, since the signal being measured is the spontaneous thermal noise emission. Interference analyses already exist for classic radiometers. The objective of this paper is the analysis of RF interference on interferometric radiometers. The study involves the analysis of possible interference sources that may affect the performance of such systems at L-band: (1) nearby emissions from radars, non-Geo-Stationary Orbit (GSO) and Mobile Satellite Services (GSO-MSS), (2) harmonics of lower frequency emissions, and (3) possible jamming.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Teledetecció
Boundary layer (Meteorology)
Remote sensing applications
Earth sciences
Ocean circulation
Radar Equipment and supplies
Soil moisture
Electromagnetic interference
Electromagnetic compatibility
geophysical techniques
hydrological techniques
oceanographic techniques
radiofrequency interference
radiometry
remote sensing
L-band
MIRAS
RF interference
aperture synthesis interferometric radiometer
geophysical measurement technique
hydrology
instrument
jamming
land surface
microwave radiometry
ocean
satellite remote sensing
sea surface salinity
soil moisture
spaceborne radiometry
terrain mapping
thermal noise emission
Capa límit (Meteorologia)
Sensors remots
Ciències de la terra
Circulació oceànica
Radar
Interferència electromàgnetica
Compatibilitat electromagnètica
Article
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
         

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