| 伪卫星远近效应分析与研究 |
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| 引用本文： | 叶红军.伪卫星远近效应分析与研究[J].无线电工程,2010,40(6):31-33,61. |
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| 作者姓名： | 叶红军 |
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| 作者单位： | 河北卫星导航技术与装备工程技术研究中心,河北,石家庄,050081 |
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| 摘 要： | 伪卫星技术在改善和增强卫星导航系统定位性能等方面起到极其重要的作用。在应用中,常常会遇到时间同步、远近效应和几何精度衰减因子等问题。介绍了伪卫星应用中远近效应问题和常用的解决方案,重点分析了采用时分多址技术来进行伪卫星信号设计的问题。通过研究证明,采用时分多路复用更适合远近效应问题的解决。对伽利略伪卫星的脉冲调制进行了研究,得出了适合伽利略信号的脉冲调制占空比参数。
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| 关 键 词： | 伪卫星 远近效应 时分多址 全球定位系统 |
Analysis and Research on the Near-far Effect of Pseudolites |
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| YE Hong-jun.Analysis and Research on the Near-far Effect of Pseudolites[J].Radio Engineering of China,2010,40(6):31-33,61. |
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| Authors: | YE Hong-jun |
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| Affiliation: | YE Hong-jun(Hebei Satellite Navigation Technology , Equipment Engineering Technology Research Centre,Shijiazhuang Hebei 050081,China) |
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| Abstract: | Pseudolite technology plays an important role in improving and enhancing the positioning performance of Global Navigational Satellite System.In applications,there are many problems,such as timing synchronization,near-far effect,and geometric dilution of precision(GDOP).This paper introduces the near-far effect of the pseudolite and some general solutions,focusing on the redesigning of pseudolite signals with the TDMA technology.Experimental results show the TDMA technology is suitable for the solution of ne... |
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| Keywords: | pseudolite near-far effect TDMA GNSS |
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