New coding advances for deep space communicationsAdvances made in error-correction coding for deep space communications are described. The code believed to be the best is a (15, 1/6) convolutional code, with maximum likelihood decoding; when it is concatenated with a 10-bit Reed-Solomon code, it achieves a bit error rate of 10 to the -6th, at a bit SNR of 0.42 dB. This code outperforms the Voyager code by 2.11 dB. The use of source statics in decoding convolutionally encoded Voyager images from the Uranus encounter is investigated, and it is found that a 2 dB decoding gain can be achieved.
Document ID
19880028864
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yuen, Joseph H. (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 13, 2013
Publication Date
October 1, 1987
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking