In non-cooperative digital communication systems, the symbol synchronization of the received signal is of great significance for the correct demodulation of the signal. Synchronization, as a key factor in the accurate transmission of information at the sender in communication, is also a vital technology in blind demodulation structures. Strictly speaking, the synchronization technology in non-cooperative communication systems includes not only carrier synchronization and bit synchronization, but also group synchronization and network synchronization. Although the existing synchronization algorithms have good reference value, they also have their limitations. For the traditional symbol synchronization loop based on the Gardner algorithm, when the roll-off coefficient is small and the symbol rate is high, the loop self-noise is serious. This paper uses a symbol synchronization method based on interpolation adjustment sequences, and proposes an improved algorithm that sets a pre-filter that meets the condition of zero timing jitter before the traditional timing error detector to compensate for the effect of self-noise on synchronization. The simulation results of the two algorithms are compared and analyzed. Through the comparison and analysis of the simulation results of the two algorithms, it is found that the improved algorithm can effectively suppress the timing jitter caused by the self-noise of the loop, and at the same time, can accelerate the symbol synchronization speed, effectively improve the limitations of the traditional algorithm and the slow convergence speed. Engineering significance.
Published in | Journal of Electrical and Electronic Engineering (Volume 8, Issue 1) |
DOI | 10.11648/j.jeee.20200801.14 |
Page(s) | 21-26 |
Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
Copyright |
Copyright © The Author(s), 2020. Published by Science Publishing Group |
Timing Synchronization, Gardner Algorithm, Filter, Timing Error Detector
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APA Style
Huang Zhen, Yang Pan, Zhang Wei Han. (2020). Improved Gardner Suppression Timing Jitter Synchronization Algorithm. Journal of Electrical and Electronic Engineering, 8(1), 21-26. https://doi.org/10.11648/j.jeee.20200801.14
ACS Style
Huang Zhen; Yang Pan; Zhang Wei Han. Improved Gardner Suppression Timing Jitter Synchronization Algorithm. J. Electr. Electron. Eng. 2020, 8(1), 21-26. doi: 10.11648/j.jeee.20200801.14
AMA Style
Huang Zhen, Yang Pan, Zhang Wei Han. Improved Gardner Suppression Timing Jitter Synchronization Algorithm. J Electr Electron Eng. 2020;8(1):21-26. doi: 10.11648/j.jeee.20200801.14
@article{10.11648/j.jeee.20200801.14, author = {Huang Zhen and Yang Pan and Zhang Wei Han}, title = {Improved Gardner Suppression Timing Jitter Synchronization Algorithm}, journal = {Journal of Electrical and Electronic Engineering}, volume = {8}, number = {1}, pages = {21-26}, doi = {10.11648/j.jeee.20200801.14}, url = {https://doi.org/10.11648/j.jeee.20200801.14}, eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeee.20200801.14}, abstract = {In non-cooperative digital communication systems, the symbol synchronization of the received signal is of great significance for the correct demodulation of the signal. Synchronization, as a key factor in the accurate transmission of information at the sender in communication, is also a vital technology in blind demodulation structures. Strictly speaking, the synchronization technology in non-cooperative communication systems includes not only carrier synchronization and bit synchronization, but also group synchronization and network synchronization. Although the existing synchronization algorithms have good reference value, they also have their limitations. For the traditional symbol synchronization loop based on the Gardner algorithm, when the roll-off coefficient is small and the symbol rate is high, the loop self-noise is serious. This paper uses a symbol synchronization method based on interpolation adjustment sequences, and proposes an improved algorithm that sets a pre-filter that meets the condition of zero timing jitter before the traditional timing error detector to compensate for the effect of self-noise on synchronization. The simulation results of the two algorithms are compared and analyzed. Through the comparison and analysis of the simulation results of the two algorithms, it is found that the improved algorithm can effectively suppress the timing jitter caused by the self-noise of the loop, and at the same time, can accelerate the symbol synchronization speed, effectively improve the limitations of the traditional algorithm and the slow convergence speed. Engineering significance.}, year = {2020} }
TY - JOUR T1 - Improved Gardner Suppression Timing Jitter Synchronization Algorithm AU - Huang Zhen AU - Yang Pan AU - Zhang Wei Han Y1 - 2020/02/25 PY - 2020 N1 - https://doi.org/10.11648/j.jeee.20200801.14 DO - 10.11648/j.jeee.20200801.14 T2 - Journal of Electrical and Electronic Engineering JF - Journal of Electrical and Electronic Engineering JO - Journal of Electrical and Electronic Engineering SP - 21 EP - 26 PB - Science Publishing Group SN - 2329-1605 UR - https://doi.org/10.11648/j.jeee.20200801.14 AB - In non-cooperative digital communication systems, the symbol synchronization of the received signal is of great significance for the correct demodulation of the signal. Synchronization, as a key factor in the accurate transmission of information at the sender in communication, is also a vital technology in blind demodulation structures. Strictly speaking, the synchronization technology in non-cooperative communication systems includes not only carrier synchronization and bit synchronization, but also group synchronization and network synchronization. Although the existing synchronization algorithms have good reference value, they also have their limitations. For the traditional symbol synchronization loop based on the Gardner algorithm, when the roll-off coefficient is small and the symbol rate is high, the loop self-noise is serious. This paper uses a symbol synchronization method based on interpolation adjustment sequences, and proposes an improved algorithm that sets a pre-filter that meets the condition of zero timing jitter before the traditional timing error detector to compensate for the effect of self-noise on synchronization. The simulation results of the two algorithms are compared and analyzed. Through the comparison and analysis of the simulation results of the two algorithms, it is found that the improved algorithm can effectively suppress the timing jitter caused by the self-noise of the loop, and at the same time, can accelerate the symbol synchronization speed, effectively improve the limitations of the traditional algorithm and the slow convergence speed. Engineering significance. VL - 8 IS - 1 ER -