Title :
Initials Results of the Passive Advanced Unit - Synthetic Aperture (PAU-SA)
Author :
Ramos-Perez, I. ; Valencia, E. ; Camps, A. ; Bosch-Lluis, X. ; Marchan-Hernandez, J.F. ; Rodríguez-Álvarez, N. ; Canales-Contador, F. ; Donadio, M.
Author_Institution :
Dept Teor. Senyal i Comunicacions D3, Universitst Politec. de Catalunya, Barcelona
Abstract :
This paper presents the first results of a hybrid synthetic aperture interferometric radiometer-GPS reflectometer called Passive Advanced Unit-Synthetic Aperture (PAU-SA). These tests are focused in the PAU-SA\´s performance with preliminary results at baseline level in order to characterize the radiometer part. The tests performed are: characterization of the radiometer noise and its stability through "Allan\´s variance", radiometric sensitivity, calibration of the offset errors and baseline response to a point source at different angles and polarizations.
Keywords :
Global Positioning System; calibration; geophysical equipment; radiometers; radiowave interferometers; Allan variance; GPS reflectometer; PAU-SA instrument; Passive Advanced Unit-Synthetic Aperture; calibration; radiometric sensitivity; synthetic aperture interferometric radiometer; Antenna arrays; Calibration; Instruments; Noise measurement; Performance evaluation; Radiometry; Reflector antennas; Stability; Testing; Time measurement; Interferometric radiometer; PAU-SA; calibration; radiometric sensitivity; stability;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4779203
