Inexpensive Rate-1/6 Convolutional Decoder for Integration and Test Purposes
Issue Date
1996-10Keywords
Rate 1/6constraint length 15
convolutional encoding
convolutional decoding
satellite communication
satellite telemetry
Near Earth Asteroid Rendezvous
NEAR
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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
The Near Earth Asteroid Rendezvous (NEAR) satellite will travel to the asteroid 433 Eros, arriving there early in 1999, and orbit the asteroid for 1 year taking measurements that will map the surface features and determine its elemental composition. NEAR is the first satellite to use the rate-1/6 convolutional encoding on its telemetry downlink. Due to the scarcity and complexity of full decoders, APL designed and built a less capable but inexpensive version of the decoder for use in the integration, test, and prelaunch checkout of the rate-1/6 encoder. This paper describes the rationale for the design, how it works, and the features that are included.Sponsors
International Foundation for TelemeteringISSN
0884-51230074-9079