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Proceedings Paper

Widespread satellite communication use and availability of advanced modulations and forward error correction coding
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Paper Abstract

GOES-R, planned for launch around 2012, is currently under development by the National Oceanic and Atmospheric Administration (NOAA) of the United States. It will be the first in a new series of geostationary (GEO) environmental satellites to provide greater capabilities for weather, atmosphere, climate, and ocean monitoring. All the onboard sensors together may generate a combined raw sensor data rate of as much as 200 Mbps on the downlink, while the global rebroadcast data rate to the users after ground compression may be as much as 32 Mbps. To transmit such a high data rate through a channel of limited bandwidth, the adoption of a high-order modulation, such as QPSK, 8PSK, or 16QAM, is necessary. As a result, much higher transmit power than that for the binary modulation is needed in order to achieve the required bit error rate, which is particularly stringent for GOES-R due to the needed protection to the compressed data. Thus, the forward error correction (FEC) coding, which is a technique that can provide significant improvement of power efficiency, becomes crucial for GOES-R. This paper presents various methods of combining high-order modulations and FEC codes. We have proposed a baseline code waveform for GOES-R, which can satisfy both bandwidth and power efficiency requirements. In this paper, we also assess other commercially available code waveforms and compare their performances with that of our baseline waveform.

Paper Details

Date Published: 26 August 2005
PDF: 10 pages
Proc. SPIE 5889, Satellite Data Compression, Communications, and Archiving, 58890B (26 August 2005); doi: 10.1117/12.618729
Show Author Affiliations
Charles Wang, The Aerospace Corp. (United States)
Donald Olsen, The Aerospace Corp. (United States)
Roger Heymann, NESDIS/NOAA (United States)

Published in SPIE Proceedings Vol. 5889:
Satellite Data Compression, Communications, and Archiving
Bormin Huang; Roger W. Heymann; Charles C. Wang, Editor(s)

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