Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ell....27..389k&link_type=abstract
Electronics Letters (ISSN 0013-5194), vol. 27, Feb. 14, 1991, p. 389, 390.
Astronomy and Astrophysics
Astronomy
3
Microwave Radiometers, Radiometric Resolution, Remote Sensing, Satellite Imagery, Earth Orbital Environments, Satellite Instruments, Terrain Analysis
Scientific paper
An interferometer system capable of realizing high azimuth resolution by deterministic synthesis like interferometric telescopes in radio astronomy is proposed. This supersynthesis radiometer uses the variation of the visibility function with relative movements against the terrain. As the movement of a LEO satellite is locally linear over the terrain, the synthesis is effective only in the azimuth direction. Fundamentally, the SSR is a fixed baseline interferometer composed of two antennas and a correlator. Focus is placed on correlator integration time and the temperature ambiguity of interferometer synthesis.
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