| 引用本文: | 刘荟萃,程肖,倪少杰,等.一种基于误差包络的多径抑制性能评估准则.[J].国防科技大学学报,2011,33(1):72-75.[点击复制] |
| LIU Huicui,Cheng Xiao,NI Shaojie,et al.Evaluation of Multipath Mitigation Performances Based on Error Envelope[J].Journal of National University of Defense Technology,2011,33(1):72-75[点击复制] |
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| 一种基于误差包络的多径抑制性能评估准则 |
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(1.北京航天飞行控制中心，北京 100094;2.国防科技大学 电子科学与工程学院，湖南 长沙 410073)
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| 摘要: |
| 多径误差是全球卫星导航系统性能提升的主要障碍之一，相应地多径抑制技术也成为导航领域的研究重点，但是一直缺乏定量解析的多径抑制技术性能评
估准则。提出了三项基于误差包络的多径抑制技术性能评估指标；首次推导了ELS技术和Double-delta技术的码跟踪多径误差公式，并结合已有的窄相关技术误差公式，给出了以上三种多径抑制技术的性能评估指标计算公式。结果可用于指导全球卫星导航系统接收机中多径抑制技术的参数设计。 |
| 关键词: 全球卫星导航系统 多径 窄相关技术 ELS技术 Double-delta技术 评估 |
| DOI： |
| 投稿日期：2010-03-29 |
| 基金项目:中国卫星导航学术年会青年优秀论文资助项目(CSNC2010-QY-020) |
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| Evaluation of Multipath Mitigation Performances Based on Error Envelope |
| LIU Huicui1,2, Cheng Xiao3, NI Shaojie4, WANG Feixue4 |
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(1. Beijing Aerospace Control Center, Beijing 100094, China;2.
2. College of Electronic Science and Engineering, National Univ. of Defence Technology, Changsha 410073, China;3.1. Beijing Aerospace Control Center, Beijing 100094, China;4.2. College of Electronic Science and Engineering, National Univ. of Defence Technology, Changsha 410073, China)
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| Abstract: |
| Multipath error is one of the last obstacles for GNSS performance improvement, and accordingly multipath mitigation techniques are
developed rapidly. However, there is a lack of evaluation rules for the multipath mitigation performance. Three evaluation criteria based on the multipath error envelope were proposed; the multipath error formulae for both ELS technique and Double-delta technique were derived for the first time; hence calculation expressions of the multipath mitigation performance evaluation for the above two techniques and narrow correlator technique were presented. This research can be used as a guideline for the parameter design of multipath mitigation techniques in GNSS receiver. |
| Keywords: GNSS multipath narrow correlator ELS technique double-delta technique evaluation |
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