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Prototype development of a Geostationary Synthetic Thinned Aperture Radiometer (GeoSTAR)

Show simple item record Kangaslahti, Pekka Tanner, Alan Wilson, William Dinardo, Steve Lambrigsten, Bjorn 2006-06-12T22:07:44Z 2006-06-12T22:07:44Z 2005-06-12
dc.identifier International Microwave Symposium, Long Beach, CA,June 12-17, 2005.
dc.identifier.citation International Microwave Symposium, Long Beach, CA, June 12-17, 2005. en
dc.identifier.clearanceno 05-0549
dc.description.abstract Weather prediction and hurricane tracking would greatly benefit of a continuous imaging capability of a hemisphere at millimeter wave frequencies. We are developing a synthetic thinned aperture radiometer (STAR) prototype operating from 50 to 56 GHz as a ground-based testbed to demonstrate the technologies needed to do full earth disk atmospheric temperature soundings from Geostationary orbit with very high spatial resolution. The prototype consists of a Y-array of 24 MMIC receivers that are compact units implemented with low noise InP MMIC LNAs, second harmonic I-Q mixers, low power IF amplifiers and include internal digital bias control with serial line communication to enable low cost testing and system integration. Furthermore, this prototype STAR includes independent LO and noise calibration signal phase switching circuitry for each arm of the Y-array to verify the operation and calibration of the system. en
dc.description.sponsorship NASA/JPL en
dc.format.extent 2989564 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US en
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2005. en
dc.subject Geostationary Observation en
dc.subject thinned aperture radiometer en
dc.subject Millimeter wave low noise amplifiers en
dc.subject Millimeter wave antenna arrays en
dc.subject MMIC phase shifters en
dc.subject MMIC receivers en
dc.subject Synthetic aperture imaging en
dc.title Prototype development of a Geostationary Synthetic Thinned Aperture Radiometer (GeoSTAR) en
dc.type Preprint en

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