Title :
First results of the PAU-SA synthetic aperture radiometer
Author :
Ramos-Perez, I. ; Forte, G. ; Bosch-Lluis, X. ; Camps, A. ; Valencia, E. ; Rodriguez-Alvarez, N. ; Park, H. ; Vall-llossera, Merce
Author_Institution :
Dept. Signal Theor. & Commun., Univ. Politec. de Catalunya, Barcelona, Spain
Abstract :
This paper presents the Passive Advanced Unit Synthetic Aperture instrument (PAU-SA), and some of the first experimental results: the use of pseudo-random noise signals for a complete baseline calibration and receivers´ frequency response characterization, the use of a Kalman filter to better estimate the receivers´ phase between internal calibrations, the imaging of an artificial point source at different angles and polarizations and, the first images of the GPS constellation satellites as they move in the instrument´s field of view.
Keywords :
Global Positioning System; Kalman filters; artificial satellites; calibration; radiometry; synthetic aperture radar; GPS constellation satellites; Kalman filter; PAU-SA synthetic aperture radiometer; Passive Advanced Unit Synthetic Aperture instrument; artificial point source; complete baseline calibration; pseudo-random noise signals; receiver frequency response characterization; Calibration; Global Positioning System; Instruments; Microwave radiometry; Noise; Receivers; Satellites; GPS satellites; Interferometric radiometer; Kalman filter; calibration; image reconstruction; pseudo-random noise;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6050011
