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BOC信号无模糊捕获方法研究进展 被引量：5

Research Development of Unambiguous Acquisition Method of BOC Signal
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摘要 BOC信号是源于GPS现代化计划的一种新型信号,并被广泛应用于未来几大导航系统的信号体制设计中。BOC信号的频谱具有分离性,能够充分利用现有的频谱资源,且其自相关函数的主峰比BPSK信号的窄,能够提供更好的码跟踪精度和抗多径能力,但其多峰特性带来错误捕获问题。根据国内外研究现状,深入研究了BPSK_like、副载波相位对消法、自相关边峰对消、去边峰等4种无模糊度的BOC信号捕获方法,探讨并仿真验证了各自方法的特点及其捕获性能,总结了BOC信号捕获技术的发展方向。 BOC （binary offset carrier） is a new-type navigation signal derived from GPS （global po- sitioning system） modernization plan, and is widely used in the signal design of several future navigation systems. The spectrum of BOC signal is dissociative, which can make full use of the existing spectrum re- sources. Besides, its peak of the autocorrelation function is narrower than that of BPSK （binary phase shift keying） signal and it can provide better tracking accuracy and better resistance to muhipath. How- ever, multiple peaks of BOC signal cause error capture problem. According to the present research status at home and abroad, four kinds of unambiguous acquisition methods of BOC signal and its development direction are discussed in detail. All methods are simulated and verified by Matlab and the performance of their acquisition is analyzed.
作者 符强 王华俊 纪元法 施浒立
机构地区 桂林电子科技大学信息与通信学院 中国科学院国家天文台
出处 《现代防御技术》 北大核心 2013年第2期91-96,106,共7页 Modern Defence Technology
基金 国家自然科学基金(60802018 61062003 61162007) 广西高校优秀人才资助项目 广西无线宽带通信与信号处理重点实验室开放基金项目
关键词 BOC信号 无模糊 捕获 相关函数 binary offset carrier（BOC） unambiguous acquisition correlation function
分类号 P228.4 [天文地球—大地测量学与测量工程] TN911 [电子电信—通信与信息系统]
  • 相关文献

参考文献15

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二级参考文献18

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共引文献35

同被引文献37

  • 1孙昊婧,胡肖传,张孟阳.BOC(2n,n)信号同步方法研究[J].飞行器测控学报,2009,28(4):85-89. 被引量：2
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引证文献5

二级引证文献20

现代防御技术
2013年 第2期

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