Title :
Development of the synthetic aperture radiometer ESTAR and the next generation
Author :
Le Vine, David M. ; Haken, Michael ; Swift, Calvin T.
Author_Institution :
NASA Goddard Space Flight Center, Greenbelt, MD
Abstract :
ESTAR is a research instrument built to develop the technology of aperture synthesis for passive remote sensing of Earth from space. Aperture synthesis is an interferometric technology that addresses the problem of putting large antenna apertures in space to achieve the spatial resolution needed for remote sensing at long wavelengths. ESTAR was a first step (synthesis only across track and only at horizontal polarization). The development has progressed to a new generation instrument that is dual polarized and does aperture synthesis in two dimensions. Among the plans for the future is technology to combine active and passive remote sensing
Keywords :
aperture antennas; geophysical techniques; radiometry; radiowave interferometry; remote sensing; ESTAR; Earth synthetic thinned aperture radiometer; L-band; active/passive remote sensing combination; antenna aperture; dual polarized instrument; horizontal polarization; interferometric technology; passive Earth remote sensing; spatial resolution; Aperture antennas; Dipole antennas; Instruments; L-band; Polarization; Radiometry; Remote monitoring; Remote sensing; Sea measurements; Space technology;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2004. IGARSS '04. Proceedings. 2004 IEEE International
Conference_Location :
Anchorage, AK
Print_ISBN :
0-7803-8742-2
DOI :
10.1109/IGARSS.2004.1368645
