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单频干扰下卫星导航信号的码跟踪性能评估 被引量：5

Tracking performance evaluation of GNSS signals in CW interference
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摘要 基于伪码为离散频谱推导了单频干扰下码跟踪误差的解析式,提出将鉴别器曲线的最大偏移量作为码跟踪性能的评价标准,对不同卫星导航信号的码跟踪误差进行仿真.仿真结果表明:GPSL1信号的部分卫星更易受到单频干扰的影响;采用BOC(1,1)赋形和MBOC(6,1,1/11)赋形的卫星导航信号受单频干扰的影响大于采用矩形赋形的;采用窄相关技术可以减小单频干扰对信号码跟踪性能的影响. The analytic expression of code tracking errors in continuous wave （CW） interference was derived. It is suggest that the maximum offset of the zero-crossing of discriminator curve can be used to evaluate the anti CW interference performance of global navigation satellite system （GNSS） signals. The tracking performance of different navigation signals in CW interference was simulated. The results show that parts of the GPS （global positioning system） L1 signals are more vulnerable to the CW interference than others; the code tracking performance of BOC（1,1） （binary offset carrier） and MBOC（6,1,1/11 ） （multiplex BOC） modulated navigation signals is better than that of BPSK （1） modulated signal in CW interference; and the effect of CW interference on code tracking performance can be reduced by narrowing the correlator spacing.
作者 胡修林 刘禹圻 冉一航 柯廷页
机构地区 华中科技大学电子与信息工程系
出处 《华中科技大学学报（自然科学版）》 EI CAS CSCD 北大核心 2010年第8期5-8,共4页 Journal of Huazhong University of Science and Technology(Natural Science Edition)
关键词 卫星导航系统 锁相环 高斯分布 单频干扰 跟踪误差 global positioning system phase locked loops Gaussian distribution continuous wave interference code tracking error
分类号 TN967 [电子电信—信号与信息处理]
  • 相关文献

参考文献11

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共引文献2

同被引文献45

  • 1周露,刘宝忠.北斗卫星定位系统的技术特征分析与应用[J].全球定位系统,2004,29(4):12-16. 被引量：57
  • 2卢晓春,陈清刚,胡永辉.卫星导航定位系统中伪随机码的研究[J].时间频率学报,2004,27(1):23-32. 被引量：15
  • 3郭蕾.通信干扰信号的软件产生方法[J].无线电通信技术,2005,31(2):40-41. 被引量：2
  • 4郝建军,何秋生,李辉,程亚奇,王立军.伽利略系统BOC信号的特性及码跟踪方法研究[J].电光与控制,2007,14(4):140-143. 被引量：12
  • 5Misra P, Enge P. Global Positioning System: Signals, Measure- ments and Performance [ M]. Lincoln, MA: Ganga-Jamuna Press, 2006.
  • 6Kaplan E D, Hegarty C J. Understanding GPS: Principles and Applications [ M]. Norwood, MA: ArCh House, 2006.
  • 7Balaei A T, Dempster A G. A statistical inference technique for GPS interference detection[ J]. 1EEE Transactions on Aerospace and Electronic Systems,2009,45(4): 1499- 1511.
  • 8Borio D. GNSS acquisition in the presence of continuous wave interference[J]. IEEE, Transactions on Aerospace and Electron- ic Systems,2010,46(1) :47 - 60.
  • 9Karsi M F, Lindsey W C. Effects of CW interference on phase- locked loop performance[J]. IEEE Transactions on Communi- cations, 2000,48 (5) : 886 - 896.
  • 10Betz J W. Effect of narrowband interference on GPS code tracking accuracy[ A]. Institute of Navigation National Techni- cal Meeting 2000 [ C]. Washington: Institute of Navigation, 2000.16 - 27.

引证文献5

二级引证文献44

华中科技大学学报（自然科学版）
2010年 第8期

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