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基于带宽优化的载波跟踪算法

牟伟清 刘荣科 宋青平 段瑞枫

牟伟清, 刘荣科, 宋青平, 等 . 基于带宽优化的载波跟踪算法[J]. 北京航空航天大学学报, 2015, 41(10): 1918-1924. doi: 10.13700/j.bh.1001-5965.2014.0715
引用本文: 牟伟清, 刘荣科, 宋青平, 等 . 基于带宽优化的载波跟踪算法[J]. 北京航空航天大学学报, 2015, 41(10): 1918-1924. doi: 10.13700/j.bh.1001-5965.2014.0715
MU Weiqing, LIU Rongke, SONG Qingping, et al. Carrier tracking algorithm based on bandwidth optimization[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(10): 1918-1924. doi: 10.13700/j.bh.1001-5965.2014.0715(in Chinese)
Citation: MU Weiqing, LIU Rongke, SONG Qingping, et al. Carrier tracking algorithm based on bandwidth optimization[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(10): 1918-1924. doi: 10.13700/j.bh.1001-5965.2014.0715(in Chinese)

基于带宽优化的载波跟踪算法

doi: 10.13700/j.bh.1001-5965.2014.0715
基金项目: 国家"863"计划(2012AA120602);教育部新世纪优秀人才支持计划(NCET-12-0030);国家自然科学基金重大研究计划(91438116)
详细信息
    作者简介:

    牟伟清(1986-),男,山东烟台人,博士研究生,weiqing0017@163.com

    通讯作者:

    刘荣科(1973-)男,教授,rongke_liu@buaa.edu.cn,主要研究方向为空天信息传输与处理、无线多媒体通信、专用集成电路设计.

  • 中图分类号: V443+.1

Carrier tracking algorithm based on bandwidth optimization

  • 摘要: 在现有的高动态微弱信号的载波跟踪算法中,针对锁频环(FLL)辅助锁相环(PLL)载波跟踪算法,环路调整不连续,易出现跟踪失锁的问题,给出了FLL与PLL的更优组合算法,并确定了组合环路状态转换的过程以及环路状态转换的门限值,从而优化环路性能;针对带宽调整不准确影响环路跟踪性能的问题,分析得出最优带宽值,确定了试探法带宽调整策略,对环路带宽进行实时调整,最终在信噪比为3dB,且存在加加速度分量时,环路的跟踪误差达到3Hz左右.

     

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出版历程
  • 收稿日期:  2014-11-18
  • 修回日期:  2014-12-19
  • 网络出版日期:  2015-10-20

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