| CCRW技术在MBOC调制信号下多径抑制性能 |
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| 引用本文： | 刘哲,倪少杰,牟卫华,唐小妹.CCRW技术在MBOC调制信号下多径抑制性能[J].全球定位系统,2011,36(4):29-33. |
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| 作者姓名： | 刘哲 倪少杰 牟卫华 唐小妹 |
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| 作者单位： | 国防科技大学电子科学与工程学院卫星导航定位研发中心,湖南长沙,410073 |
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| 摘 要： | 由于频谱与二相移键控（BPSK）信号有较好的分离度且具有良好的跟踪性能，多元二进制偏置载波（MBOC）调制为GPS现代化和Galileo系统所采用，其多径抑制技术也成为研究热点。选取了四种典型的码相关参考波形（CCRW）技术，研究了其应用于MBOC信号时的多径抑制性能，并与BPSK和BOC（1，1）调制下的多径抑制性能进行了比较。通过仿真可知，在同等条件下，W2、W3、w4CCRW技术在时系多元二进制偏置载波（TMBOC）调制下多径抑制性能最差，在二进制偏置载波（CBOC）调制下性能最优，但三种方法均优于W1CCRW．
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| 关 键 词： | GNSS CCRW技术 MBOC 多径抑制 |
Multipath Performance for CCRW in MBOC Modulated Signals |
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| LIU Zhe,NI Shao-jie,MOU Wei-hua,TANG Xiao-mei.Multipath Performance for CCRW in MBOC Modulated Signals[J].Gnss World of China,2011,36(4):29-33. |
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| Authors: | LIU Zhe NI Shao-jie MOU Wei-hua TANG Xiao-mei |
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| Institution: | LIU Zhe,NI Shao-jie,MOU Wei-hua,TANG Xiao-mei(Satellite Navigation and Positioning R&D Center,School of Electronic Science and Engineering,National University of Defense Technology,Changsha Hunan 410073,China) |
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| Abstract: | Because of better spectral efficiency and performance in tracking,MBOC modulated signals are adopted by GPS and Galileo system,and the multipath mitigating technologies suit for MBOC modulated signals have been paid great attention.The performances in multipath mitigation of four typical CCRW techniques in MBOC modulated signals are studied and compared with that in BPSK and BOC(1,1) modulated signals.Through the analysis and simulation,it's shown that in the four mentioned modulated signals,W2,W3 and W4 CC... |
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| Keywords: | GNSS CCRW MBOC multipath mitigation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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