PROPOSED NEW WAVEFORM CONCEPT FOR BANDWIDTH AND POWER EFFICIENT TT&C
Author
Olsen, Donald P.Affiliation
The Aerospace CorporationIssue Date
1999-10Keywords
Modulationcoding
bandwidth efficient waveforms
power efficient waveforms
GMSK
turbo coding
interleaving
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Copyright © International Foundation for TelemeteringCollection Information
Proceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.Abstract
Most traditional approaches to TT&C have employed waveforms that are neither very power nor bandwidth efficient. A new approach to TT&C waveforms greatly improves these efficiencies. Binary Gaussian Minimum Shift Keying (GMSK) provides a constant envelope bandwidth efficient signal for applications above about 10 Kbps. The constant envelope preserves the spectrum through saturated amplifiers. It provides the best power efficiency when used with turbo coding. For protection against various kinds of burst errors it includes the hybrid interleaving for memory and delay efficiency and packet compatible operations in Time Division Multiple Access (TDMA) environments. Commanding, telemetry, mission data transmission, and tracking are multiplexed in TDMA format.Sponsors
International Foundation for TelemeteringISSN
0884-51230074-9079