Title :
PAU instrument aboard INTA MicroSat-1: Flight model tests
Author :
Alonso, A. ; Camps, A. ; Pascual, D. ; Park, H. ; Alcayde, A. ; Chavero, S. ; Martínez, P. ; Crespo, L. ; Angulo, M. ; Rius, A.
Author_Institution :
Dept. of Signal Theor. & Commun., Univ. Politec. de Catalunya Barcelona-Tech, Barcelona, Spain
Abstract :
This work presents the flight model of a PAU version to be flown in INTA´s (Instituto Nacional de Técnicas Aeroespaciales, Spanish Aerospace Center) MicroSat-1 and the tests performed. PAU is a hybrid GNSS-Reflectometer / Microwave Radiometer developed to assess the impact of the sea state on the L-band brightness temperatures and on the GNSS-R observables (the Delay Doppler Maps or DDMs). The DDMs can be used in the future to perform the sea state correction in the L-band radiometric measurements, and therefore, improve the quality of the sea surface salinity retrievals. This work also describes a sensitivity test, a Doppler test, and a preliminary field experiment to evaluate the performance.
Keywords :
aerospace instrumentation; aerospace testing; microwave measurement; oceanographic techniques; radiometers; satellite navigation; DDM; Doppler test; GNSS-R observables; Instituto Nacional de Tecnicas Aeroes-paciales; L-band brightness temperatures; L-band radiometric measurements; PAU instrument aboard INTA MicroSat-1; Spanish Aerospace Center; delay Doppler maps; flight model tests; hybrid GNSS-reflectometer microwave-radiometer; performance evaluation; sea state; sea surface salinity retrievals; Doppler effect; Instruments; L-band; Microwave radiometry; Sea surface salinity; Delay-Doppler Map (DDM); Global Navigation Satellite System Reflectometry (GNSS-R); Microwave Radiometry; Sea Surface Salinity (SSS); Sea-state;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2012 IEEE International
Conference_Location :
Munich
Print_ISBN :
978-1-4673-1160-1
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2012.6350820
