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Proceedings Paper

Advanced Geosynchronous Studies Imager: ground system architecture
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Paper Abstract

During 1997-98, the NASA-NOAA Advanced Geosynchronous Studies (AGS) program sponsored work to explore the possibility of designing a high-quality imaging radiometer for the future GOES platforms. The AGS Imager (AGSI) design calls for the acquisition of 12-bit digital images every few minutes in 18 spectral bands with horizontal resolutions ranging from 0.3 to 1.5 km on a full-earth disk. The resulting raw sensor data stream is approximately 300 Mbits/sec, uncompressed. The AGSI ground system must convert the sensor data into calibrated, earth-located 'Level 1b' images and deliver them to NOAA and to the science community within minutes of reception. To accomplish this high-speed digital-image delivery, the AGSI downlink design calls for lossless compression to 150 Mbits/sec, packetized using CCSDS standards with error-correction, and broadcast in Ka- band to a low-precipitation site like White Sands, NM.

Paper Details

Date Published: 24 September 1999
PDF: 10 pages
Proc. SPIE 3750, Earth Observing Systems IV, (24 September 1999);
Show Author Affiliations
Richard Hollenhorst, NASA Goddard Space Flight Ctr. (United States)
Dennis Chesters, NASA Goddard Space Flight Ctr. (United States)

Published in SPIE Proceedings Vol. 3750:
Earth Observing Systems IV
William L. Barnes, Editor(s)

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