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电子与信息学报 2005
The Design of DPLL for Low SNR Signals with Large Frequency Offset
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Abstract:
The digital phase-locked loops design is a key technology for carrier and bit synchronization in coherent demodulation digital receiver. Large frequency offset and low SNR add more difficulties of the loop design from two different ways. Based on this condition, aim at fast acquisition and tracking, a method of digital loop parameter algorithm is proposed in this paper and some useful conclusions are given.