- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
- It is demonstrated how the use of interleaving/deinterleaving in trellis-coded modulation (TCM) systems can reduce the signal-to-noise ratio loss due to imperfect carrier demodulation references. Both the discrete carrier (phase-locked loop) and suppressed carrier (Costas loop) cases are considered and the differences between the two are clearly demonstrated by numerical results. These results are of great importance for future communication links to the Deep Space Network (DSN), especially from high Earth orbiters, which may be bandwidth limited.
- Other Subject(s):
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 19890018518.
Accession ID: 89N27889.
The Telecommunications and Data Acquisition Report; p 180-193.
- No Copyright.
View MARC record | catkey: 15689350