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电离层中小尺度扰动的多频多普勒快速探测与分析

贺德江 朱正平 蓝加平 宁百齐 胡连欢

贺德江, 朱正平, 蓝加平, 宁百齐, 胡连欢. 电离层中小尺度扰动的多频多普勒快速探测与分析[J]. 空间科学学报, 2017, 37(2): 158-167. doi: 10.11728/cjss2017.02.158
引用本文: 贺德江, 朱正平, 蓝加平, 宁百齐, 胡连欢. 电离层中小尺度扰动的多频多普勒快速探测与分析[J]. 空间科学学报, 2017, 37(2): 158-167. doi: 10.11728/cjss2017.02.158
HE Dejiang, ZHU Zhengping, LAN Jiaping, NING Baiqi, HU Lianhuan. Multi-frequency Doppler Fast Detection and Analysis of Meso-micro Scale Ionospheric Disturbances[J]. Journal of Space Science, 2017, 37(2): 158-167. doi: 10.11728/cjss2017.02.158
Citation: HE Dejiang, ZHU Zhengping, LAN Jiaping, NING Baiqi, HU Lianhuan. Multi-frequency Doppler Fast Detection and Analysis of Meso-micro Scale Ionospheric Disturbances[J]. Journal of Space Science, 2017, 37(2): 158-167. doi: 10.11728/cjss2017.02.158

电离层中小尺度扰动的多频多普勒快速探测与分析

doi: 10.11728/cjss2017.02.158
基金项目: 

国家自然科学基金项目资助(41474135,41127003,41134120)

详细信息
    作者简介:

    朱正平,E-mail:zpzhu2007@sina.com

  • 中图分类号: P352

Multi-frequency Doppler Fast Detection and Analysis of Meso-micro Scale Ionospheric Disturbances

  • 摘要: 电离层反射回波的高频多普勒频移测量是研究电离层扰动的重要方法之一.利用基于单频信号相位变化率测量的实时探测方法,获取连续高精度多频多普勒频高图,以实现中小尺度电离层扰动的快速探测研究.该方法被应用于敏捷式高性能电离层无线电多频探测系统样机平台.经验证在该平台上获取的多普勒频移分辨率可达0.039Hz,频高图探测周期最短小于1min.基于这种快速探测方法和平台在武汉观测站进行了较长时间的观测和数据采集,获得高精度多普勒频移并反演出电子浓度等值面法向运动速度,得到电离层反射寻常波的多普勒频高图和垂直扰动速度等信息,进而推演出电离层扰动随时间和空间的实时变化特征.对这些时域信号进行频谱分析,初步结果显示这些扰动主要是由极区活动激发的中国中部地区冬季出现率较高的中尺度TID.此外,对三种常用的电离层扰动反演分析方法进行了对比研究,结果显示电离层扰动的变化趋势基本一致,说明观测数据和研究方法可靠稳定,为多频多点电离层扰动的传播特性观测研究提供了基础.

     

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出版历程
  • 收稿日期:  2016-01-14
  • 修回日期:  2016-04-27
  • 刊出日期:  2017-03-15

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