西安电子科技大学学报

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GNSS接收机虚拟多频RAIM方法

卢虎1;韩雷晋1;谢岩2   

  1. (1. 空军工程大学 信息与导航学院,陕西 西安  710077;
    2. 西北工业大学 明德学院,陕西 西安  710124)
  • 收稿日期:2015-07-10 出版日期:2016-10-20 发布日期:2016-12-02
  • 通讯作者: 卢虎
  • 作者简介:卢虎(1975-),男,副教授,博士,E-mail: sdkmsdn@sina.com.
  • 基金资助:

    国家自然科学基金资助项目(61174194,61473308);陕西省自然科学基础研究计划资助项目(2013JM0813)

Novel RAIM algorithm GNSS receiver based on virtual triple-frequency techniques

LU Hu1;HAN Leijin1;XIE Yan2   

  1. (1. Information and Navigation Institute, Air Force Engineering Univ., Xi'an  710077, China;
    2. Mingde College, Northwestern Ploytechnical Univ., Xi'an  710124, China)
  • Received:2015-07-10 Online:2016-10-20 Published:2016-12-02
  • Contact: LU Hu

摘要:

通过对单频接收机的“虚拟多频点”电离层延时关联模型的研究,建立了一种新型单频接收机虚拟多频接收机自主完好性监测方法,给出了虚拟多频故障监测和识别的判据.仿真结果表明,“虚拟多频”接收机自主完好性监测方法不仅突破了传统接收机自主完好性监测算法对可见星数目的限制,而且还能在不改变单频接收机硬件结构的前提下,极大地提升接收机的完好性监测性能,具有很好的理论意义和实用价值.

关键词: 全球导航卫星系统, 接收机自主完好性监测, 虚拟频点, 奇偶矢量法

Abstract:

In the GNSS era, how to effectively enhance the navigation signal integrity monitoring capacity by using multi-frequency information is becoming a hot topic and the mainstream of RAIM technique. Based on the “virtual” multi-frequency ionospheric delay model of the single-frequency receiver, the paper proposes a novel virtual multi-frequency integrity monitoring technique for the single-frequency receiver, then presents the virtual multi-frequency criterion for fault detection and identification. Simulating results show that the “virtual multi-frequency” RAIM technique not only breaks through the limit to the number of visible satellites of traditional RAIM algorithms, but also greatly enhances the RAIM performance of the receiver without changing the hardware structure of the receiver, which would be of a tempting theoretical and practical value.

Key words: global navigation satellite system, receiver autonomous integrity monitoring (RAIM), virtual frequency techniques, parity vector method