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电子学报  2013 

一种串联结构数字载波环及其Z域噪声性能分析

DOI: 10.3969/j.issn.0372-2112.2013.02.016, PP. 307-313

Keywords: 载波跟踪,串联载波环,加性高斯白噪声,Z域全相位模型,相位噪声方差

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Abstract:

提出一种具有串联环路结构的新型数字载波跟踪环,以解决极低载噪比下高动态载波信号的跟踪问题.在输入加性高斯白噪声假设下,通过建立具有一定通用性的Z域全相位模型,对新型载波环的噪声跟踪性能进行了理论分析,推导出相位噪声方差的计算通式.根据新型载波环的具体实例,验证了理论分析结果的正确性.基于上述分析结果,对新型载波环完成了参数优化,并对其与传统载波环进行了性能比较.结果表明,在极低载噪比高动态条件下,新型载波环跟踪性能优于传统载波环.所得结论可用于评估新型载波环的噪声跟踪性能或指导其环路设计.

References

[1]  向洋,胡修林.基于最大似然估计的高动态GPS载波跟踪环[J].电子学报,2010,38(7):1563-1567. Xiang Yang,Hu Xiu-lin.Maximum likelihood estimation based high dynamic GPS tracking loop[J].Acta Electronica Sinica,2010,38(7):1563-1567.(in Chinese)
[2]  谢钢.GPS原理与接收机设计[M].北京:电子工业出版社,2009:131-142.
[3]  刘禹圻.导航信号跟踪理论及高精度测角技术研究[D].武汉:华中科技大学,2011.
[4]  Phillip W W.Performance comparisons between FLL,PLL and a novel FLL assisted PLL carrier tracking loop under RF interference conditions[A].ION GPS 10th International Technical Meeting of the Satellite Division[C].Kansas City,MO,USA:ION,1997.1473-1482.
[5]  Scott K E,Olasz E B.Simultaneous clock phase and frequency offset estimation .IEEE Transactions on Communications,1995,43(7):2263-2270.
[6]  卢满宏,周三文,等.深空测控通信技术专题研究[J].遥测遥控,2007,28(Suppl.):11-16.
[7]  Alireza R,Demoz G E,Dennis M A.Carrier loop architectures for tracking weak GPS signals[J].IEEE Transactions on Aerospace and Electronic Systems,2008,44(2):697-710.
[8]  Pedro A R,Javier G G.High dynamics and false lock resistant GNSS carrier tracking loops[A].Ion GNSS 20th International Technical Meeting of the Satellite Division [C].Fort Worth,TX,USA:ION,2007.2364-2375.
[9]  Yu W,Lachapelle G,kone S.PLL performance for signals in the presence of thermal noise,phase noise,and ionospheric scintillation[A].ION GNSS 19th International Technical Meeting of the Satellite Division[C].Fort Worth,TX,USA:ION,2006.1341-1354.
[10]  Todd E H,Mark L P,Paul M K,et al.GPS carrier tracking loop performance in the presence of ionospheric scintillations[A].ION GNSS 18th International Technical Meeting of the Satellite Division[C].Long Beach,CA,USA:ION,2005.156-167.
[11]  Markus I,Bernd E.PLL tracking performance in the presence of oscillator phase noise[J].GPS Solutions,2002,5(4):45-57.
[12]  唐小妹,徐鹏程,等.两种相位鉴别器下的导航接收机跟踪环路性能分析及比较[J].国防科技大学学报,2010,32(2):85-90. Tang Xiao-mei,Xu Peng-cheng,et al.Performance comparison of phase detector in navigation receiver''s tracking loop[J].Journal of National University of Defense Technology,2010,32(2):85-90.(in Chinese)
[13]  王俊,李加琪,等.锁频环辅助下锁相环的跟踪误差分析[J].北京理工大学学报,2011,31(7):838-843. Wang Jun,Li Jia-qi,et al.Tracking error analysis of FLL-assisted-PLL[J].Transactions of Beijing Institute of Technology,2011,31(7):838-843.(in Chinese)
[14]  韩孟飞,王永庆,等.一种低信噪比下LFM信号参数快速估计算法[J].北京理工大学学报,2009,29(02):147-151. Han Meng-fei,Wang Yong-qing,et al.A fast algorithm on parameter estimation of LFM signals under low SNR[J].Transactions of Beijing Institute of Technology,2009,29(02):147-151.(in Chinese)
[15]  齐国清,贾欣乐.基于DFT相位的正弦波频率和初相的高精度估计方法[J].电子学报,2001,29(9):1164-1167. Qi Guo-qing,Jia Xin-le.High-accuracy frequency and phase estimation of single-tone based on phase of DFT[J].Acta Electronica Sinica,2001,29(9):1164-1167.(in Chinese)
[16]  Stephens S A,Thomas J B.Controlled-root formulation for digital phase locked loop[J].IEEE Transactions on Aerospace and Electronic Systems,1995,31(1):78-95.

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