Design of PSK carrier recovery loop under large frequency offset

Based on the idea of phase frequency detector (PFD), a novel carrier recovery loop for PSK signals with large frequency offset is proposed. By prolonging the "Hold" stage, the frequency acquisition ability of PFD-PLL is enhanced. A new simple lock detection method is also proposed, for loc...

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Bibliographische Detailangaben
Hauptverfasser:	Feng Xu, Yu Wang, Lede Qiu
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	carrier recovery loop Detectors large frequency offset lock detector PFD Phase frequency detector Phase locked loops Phase shift keying PSK Signal to noise ratio Switches Tracking loops
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Beschreibung
Zusammenfassung:	Based on the idea of phase frequency detector (PFD), a novel carrier recovery loop for PSK signals with large frequency offset is proposed. By prolonging the "Hold" stage, the frequency acquisition ability of PFD-PLL is enhanced. A new simple lock detection method is also proposed, for lock detection in the proposed carrier recovery loop. Analysis and simulation results show the superiority of the proposed method under medium-to-high SNRs.
DOI:	10.1109/CISP.2012.6469666