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Carrier recovery scheme for on-board demodulation suited to low E b/N0

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3 Author(s)
Morlet, C. ; ENST, Toulouse, France ; Boucheret, M.-L. ; Buret, I.

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

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Global Telecommunications Conference, 1998. GLOBECOM 1998. The Bridge to Global Integration. IEEE  (Volume:6 )

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