Open AccessAn improved algorithm for timing error detection based on all-digital receiver
Author(s) -
Zhao Yan-li,
Jie Lü,
Jun Wang
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1550/2/022035
Subject(s) - algorithm , computer science , jitter , asynchronous communication , synchronization (alternating current) , rayleigh fading , modulation (music) , channel (broadcasting) , fading , decoding methods , telecommunications , philosophy , aesthetics
In view of the wide application of the Gardner algorithm in timing synchronization loop and its limitation of the band-limited signals, an enhanced Gardner timing error detection algorithm, which has a simple structure and can effectively reduce the deviation of the timing error and system self- noise, is proposed in this paper by comparison of the Gardner algorithm and its correction algorithm in both the pattern jitter and timing errors on the basis of the asynchronous sampling. The simulation results show that E-Gardner algorithm has a significant improvement in the performance of QPSK modulation signal’s clock capture and error detection in the case of a small roll-off factor under the Gaussian with Rayleigh fading channel.