Title :
Synchronisation in the carrier recovery of a satellite link using turbo-codes with the help of tentative decisions
Author :
Langlais, Charlotte ; Helard, Maryline ; Lanoiselee, Marc
Author_Institution :
CCETT, Cesson Sevigne, France
fDate :
6/21/1905 12:00:00 AM
Abstract :
The paper demonstrates how the use of tentative decisions can improve the carrier recovery over a satellite link under severe conditions with a C/N that can quickly decrease under 3 dB when using a turbo-code. We demonstrate how we overcome the synchronisation errors, especially carrier phase errors in the tracking mode for transmission in a continuous mode. We present simulation results such as improvements on the S-curve of a phase detector, reduction of the cycle slip rate and the global system performance
Keywords :
satellite links; C/N; S-curve; carrier phase errors; carrier recovery synchronisation; continuous mode transmission; cycle slip rate reduction; demodulator; global system performance; noise equivalent bandwidth; phase detector; satellite link; simulation results; synchronisation errors; tentative decisions; tracking mode; turbo codes;
Conference_Titel :
Turbo Codes in Digital Broadcasting - Could It Double Capacity? (Ref. No. 1999/165), IEE Colloquium on
Conference_Location :
London
DOI :
10.1049/ic:19990785