A simple and fast carrier recovery algorithm for high-order QAM

We propose a new carrier recovery algorithm for high-order quadrature amplitude modulation (QAM). The proposed solution relies on two phase detectors, combined with a novel track and hold algorithm for faster frequency acquisition. Compared to previous works, a tenfold improvement or better is achie...

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Veröffentlicht in:	IEEE communications letters 2005-10, Vol.9 (10), p.918-920
Hauptverfasser:	Ghyslain, G., Choquette, F., Belzile, J., Gagnon, F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Constellation diagram Error analysis Exact sciences and technology Frequency estimation Gaussian noise Information, signal and communications theory Modulation, demodulation Phase detection Phase estimation Phase frequency detector Phase noise Quadrature amplitude modulation Signal and communications theory Signal generators Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments)
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Beschreibung
Zusammenfassung:	We propose a new carrier recovery algorithm for high-order quadrature amplitude modulation (QAM). The proposed solution relies on two phase detectors, combined with a novel track and hold algorithm for faster frequency acquisition. Compared to previous works, a tenfold improvement or better is achieved in terms of acquisition speed, while keeping a low residual phase noise.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2005.10012