The Passive Remote Sensing Group belongs to the Remote Sensing Laboratory (RSLab) from the Departament de Teoria del Senyal i Comunicacions (TSC), Universitat Politècnica de Catalunya (UPC), Barcelona, Spain.
This web page describes the activities carried out by our group in the area of radiometry: the measurement of the thermal radiation emitted and/or reflected by the Earth and the atmosphere.
Research in microwave radiometry started in UPC in 1993. From the begining, the group has participated in the concept of the SMOS/MIRAS instrument (Soil Moisture and Ocean Salinity / Microwave Imaging Radiometer by Aperture Synthesis), now single payload of the ESA 2nd Earth Explorer Opportunity Mission and also in the scientifics aspects of the mission.
MIRAS will be the first t wo-dimensional aperture synthesis interferometric radiometer for Earth observation and will be devoted to the measurement of soil moisture and sea salinity by making multi-angular L-band brightness temperature maps.
Within the preparatory activies previous to SMOS launch, the UPC PRSG has carried out many field experiments, such as:
- WISE 2000 and 2001, FROG 2003, and ALBATROSS 2008 which analyzed ocean salinity retrieval algorithms, and
- REFLEX 2003 and 2006, MOUSE 2004, T-REX 2004 and 2006, TURTLE 2006, and the GRAJO 2008-2009 experiment, which deal with L-band emission over land.
Other research topics are:
- Theoretical and experimental characterization of the full-polarimetric signature of the rain at X-band.
- Rain measurement interferometric radiometer systems.
Study of new concept interferometric radiometers.