Title :
Synthetic aperture radiometer systems
Author :
Le Vine, David M.
Author_Institution :
Lab. for Hydrospheric Processes, Goddard Space Flight Center, Greenbelt, MD, USA
fDate :
12/1/1999 12:00:00 AM
Abstract :
Aperture synthesis is an emerging technology for passive microwave remote sensing from space. It is an interferometric technique similar to earth rotation synthesis employed in radio astronomy in which pairs of small antennas and signal processing are used to obtain the resolution of a single large antenna. The technique has the potential to overcome the barriers that antenna size has plated on passive microwave remote sensing from space. The technique has been demonstrated successfully for remote sensing at L-band with the aircraft prototype ESTAR. New aircraft instruments are under development and proposals have been submitted for instruments to demonstrate this technology in space
Keywords :
aerospace instrumentation; microwave measurement; radiometers; radiowave interferometry; remote sensing; ESTAR; L-band; antenna signal processing; aperture synthesis technology; interferometric technique; passive microwave remote sensing; space instrument; synthetic aperture radiometer; Aircraft; Apertures; Earth; Instruments; Microwave radiometry; Microwave technology; Passive microwave remote sensing; Radio interferometry; Signal synthesis; Space technology;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
