Title :
Brightness Temperature Map Reconstruction from Dual-Polarimetric Visibilities in Synthetic Aperture Imaging Radiometry
Author :
Anterrieu, Eric ; Khazaal, Ali
Author_Institution :
Lab. d´´Astrophys. de Toulouse-Tarbes (LATT), Toulouse
fDate :
3/1/2008 12:00:00 AM
Abstract :
Synthetic aperture imaging radiometers are powerful sensors for high-resolution observations of the Earth at low microwave frequencies. Within this context, the European Space Agency is currently developing the soil moisture and ocean salinity (SMOS) mission devoted to the monitoring of SMOS at global scale from L-band spaceborne radiometric observations obtained with a 2-D interferometer. This paper is concerned with the reconstruction of radiometric brightness temperature maps from interferometric measurements. More exactly, it extends the concept of ldquoband-limited resolving matrixrdquo to the case of the processing of dual-polarimetric data.
Keywords :
geophysical techniques; radar polarimetry; radiometry; remote sensing by radar; synthetic aperture radar; 2D interferometer; Earth; SMOS mission; brightness temperature; dual polarimetric visibilities; map reconstruction; synthetic aperture imaging radiometry; Brightness temperature; Earth; High-resolution imaging; Image reconstruction; Image sensors; Microwave frequencies; Microwave imaging; Microwave radiometry; Microwave sensors; Radiometers; Inverse problems; polarimetry; radiometry; remote sensing; synthetic aperture imaging;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
DOI :
10.1109/TGRS.2007.914799