Citation
Abstract
The Viterbi decoders currently used by the Deep Space Network (DSN) use an algorithm for maintaining node synchronization that breaks down at bit signal-to-noise ratios (SNRs) of about 2.0 dB. In this report, it is shown that this can become an important consideration when the effects of noisy carrier referencing are combined with the lower SNRs that are expected at Voyager 2 Uranus and Neptune encounters. Depending on the available carrier power, node synchronization losses of between 0,85 and 1.25 aB can be expected in addition to the radio loss.
Details
- Volume
- 42-68
- Published
- April 15, 1982
- Pages
- 17–24
- File Size
- 414.6 KB