系统工程与电子技术 ›› 2020, Vol. 42 ›› Issue (8): 1820-1825.doi: 10.3969/j.issn.1001-506X.2020.08.23

• 制导、导航与控制 • 上一篇    下一篇

基于GPS载噪比下降的太阳射电暴检测方法

祝雪芬1(), 杨帆1(), 陈熙源1(), 林梦颖1(), 陈新2()   

  1. 1. 东南大学仪器科学与工程学院, 江苏 南京 210096
    2. 上海交通大学电子信息与电气工程学院, 上海 200240
  • 收稿日期:2019-12-13 出版日期:2020-07-25 发布日期:2020-07-27
  • 作者简介:祝雪芬(1983-),女,副教授,硕士研究生导师,博士,主要研究方向为卫星导航软件接收机及GNSS干扰检测。E-mail:zhuxuefen@seu.edu.cn|杨帆(1995-),男,硕士研究生,主要研究方向为GNSS干扰检测。E-mail:220183292@seu.edu.cn|陈熙源(1969-),男,教授,博士研究生导师,博士,主要研究方向为卫星导航及组合导航。E-mail:chxiyuan@seu.edu.cn|林梦颖(1994-),女,博士研究生,主要研究方向为GNSS干扰检测。E-mail:230198865@seu.edu.cn|陈新(1982-),男,副教授,硕士研究生导师,博士,主要研究方向为卫星导航信号处理技术、多径信道模型、GNSS干扰检测识别等。E-mail:xin.chen@sjtu.edu.cn
  • 基金资助:
    国家重点研发计划项目(2018YFB0505103)

Detection method of solar radio bursts based on decrease of GPS carrier-to-noise ratio

Xuefen ZHU1(), Fan YANG1(), Xiyuan CHEN1(), Mengying LIN1(), Xin CHEN2()   

  1. 1. School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China
    2. School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2019-12-13 Online:2020-07-25 Published:2020-07-27
  • Supported by:
    国家重点研发计划项目(2018YFB0505103)

摘要:

利用太阳射电暴影响全球定位系统(global positioning system, GPS)性能这一特征,提出一种基于GPS载噪比下降的太阳射电暴检测方法。首先计算观测地的太阳高度角,接着筛选出“降点”和“升点”用于确定单个观测地单颗卫星的波谷时间区间,最后综合多颗卫星和多个观测地得到太阳射电暴的检测结果。实验结果表明:太阳射电暴检出率随太阳入射角的增大而增大,在L2频段对600太阳流量单位(solar flux unit, SFU)以上的太阳射电暴检出率达到80%以上,在L2频段检出效果优于L1。该检测方法识别率高,成本低,不依赖于射电望远镜,能进行全天候实时的监测。

关键词: 全球定位系统, 太阳射电暴, 载噪比, 检出率

Abstract:

Taking advantage of the influence of solar radio bursts on the performance of global positioning system (GPS), a detection method of solar radio bursts based on the decrease of GPS carrier-to-noise ratio is proposed. Firstly, the solar incidence angle of the observation ground is calculated, then the "falling points" and "rising points" are selected to determine the time interval of the trough of a single satellite from the single observation ground, and finally the detection results of the solar radio bursts are determined by integrating multiple satellites and multiple observation grounds. The experimental results show that the detection rate of solar radio bursts increases with the increase of the solar incidence angle, the detection rate of solar radio bursts above 600 SFU on the L2 frequency band reaches more than 80%, and the detection effect on the L2 frequency band is better than that on L1. This detection method has a high recognition rate, low cost, does not depend on the radio telescope, and can carry out all-weather real-time monitoring.

Key words: global positioning system (GPS), solar radio burst, carrier-to-noise ratio, detection rate

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