Title :
Carrier recovery scheme for on-board demodulation suited to low E b/N0
Author :
Morlet, Catherine ; Boucheret, Marie-Laure ; Buret, Isabelle
Author_Institution :
ENST, Toulouse, France
Abstract :
In this paper we describe and analyse new feedforward synchronization algorithms suited to on-board digital implementation. Both algorithms studied here (for phase and frequency recovery) have the particularity to perform all calculations in polar coordinates and so to reduce complexity of implementation. A phase estimator operating at very low SNR with no frequency offset is defined. Its performances are close to the Viterbi and Viterbi algorithm. A frequency estimator based on the previous phase estimator is also presented and analysed
Keywords :
asynchronous transfer mode; computational complexity; demodulation; feedforward; frequency estimation; phase estimation; phase shift keying; synchronisation; carrier recovery scheme; complexity; feedforward synchronization algorithms; frequency estimator; frequency recovery; on-board demodulation; performance; phase estimator; phase recovery; polar coordinates; Algorithm design and analysis; Asynchronous transfer mode; Demodulation; Filters; Frequency estimation; Frequency synchronization; Phase estimation; Quadrature phase shift keying; Telecommunications; Viterbi algorithm;
Conference_Titel :
Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE
Conference_Location :
Sydney,NSW
Print_ISBN :
0-7803-4984-9
DOI :
10.1109/GLOCOM.1998.775839
