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TOGA - a GNSS reflections instrument for remote sensing using beamforming

Show simple item record Esterhuizen, S. Meehan, T.K. Robison, D. 2015-07-14T18:06:13Z 2015-07-14T18:06:13Z 2009-03-07
dc.identifier.citation 2009 IEEE Aerospace Conference, Big Sky, Montana, March 7-14, 2009 en_US
dc.identifier.clearanceno 09-0992
dc.description.abstract Remotely sensing the Earth’s surface using GNSS signals as bi-static radar sources is one of the most challenging applications for radiometric instrument design. As part of NASA‘s Instrument Incubator Program, our group at JPL has built a prototype instrument, TOGA (Time-shifted, Orthometric, GNSS Array), to address a variety of GNSS science needs. Observing GNSS reflections is major focus of the design/development effort. The TOGA design features a steerable beam antenna array which can form a high-gain antenna pattern in multiple directions simultaneously. Multiple FPGAs provide flexible digital signal processing logic to process both GPS and Galileo reflections. A Linux OS based science processor serves as experiment scheduler and data post-processor. This paper outlines the TOGA design approach as well as preliminary results of reflection data collected from test flights over the Pacific ocean. This reflections data demonstrates observation of the GPS L1/L2C/L5 signals. en_US
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US en_US
dc.publisher Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2009 en_US
dc.subject GPS en_US
dc.subject Blackjack en_US
dc.title TOGA - a GNSS reflections instrument for remote sensing using beamforming en_US
dc.type Preprint en_US

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