Title :
About off-axis radiometric polarimetric measurements
Author :
Waldteufel, Philippe ; Caudal, Gérard
Author_Institution :
Inst. Pierre Simon Laplace, CNRS, Velizy, France
fDate :
6/1/2002 12:00:00 AM
Abstract :
Polarization changes for off-axis rays, while a minor effect for narrow-beam antennas, become a significant issue for wide-beam antennas required by synthetic aperture radiometry. This note provides the angle-dependent relationship between upwelling fields and collected signals; results are illustrated by the case of the Surface Moisture and Ocean Salinity (SMOS) mission.
Keywords :
electromagnetic wave polarisation; oceanographic techniques; polarimetry; radiometry; radiowave interferometry; remote sensing; SMOS mission; Surface Moisture and Ocean Salinity; interferometry; off-axis radiometric polarimetric measurements; polarization; polarization changes; synthetic aperture radiometry; upwelling fields; wide-beam antennas; Antenna arrays; Antenna measurements; Aperture antennas; Moisture; Ocean salinity; Ocean temperature; Polarization; Radiometry; Sea measurements; Sea surface;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.2002.800236
