Citation
Abstract
In this article, it is demonstrated how the use of interleaving/deinterleaving in trellis-coded modulation (TCM) systems can reduce the SNR 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 DSN, especially from high Earth orbiters, which may be bandwidth limited.
Details
- Volume
- 42-97
- Published
- May 15, 1989
- Pages
- 180–193
- File Size
- 468.6 KB