敏捷数字电离层测高仪系统研制及初步观测

蓝加平; 宁百齐; 朱正平; 胡连欢; 孙文杰; 李国主

doi:10.11728/cjss2019.02.167

敏捷数字电离层测高仪系统研制及初步观测

doi: 10.11728/cjss2019.02.167

蓝加平^1,2,3,4,5,
宁百齐^1,2,4,
朱正平³,
胡连欢^1,2,4,
孙文杰^1,2,4,
李国主^1,2,4,5

1. 中国科学院地质与地球物理研究所地球与行星物理重点实验室北京 100029;
2. 中国科学院地质与地球物理研究所北京空间环境国家野外科学观测研究站北京 100029;
3. 中南民族大学电子信息工程学院武汉 430074;
4. 中国科学院地球科学研究院北京 100029;
5. 中国科学院大学地球与行星科学学院北京 100049

基金项目:

国家自然科学基金项目资助（41574149，41127003，41474135，41727803）

详细信息

作者简介:
宁百齐,E-mail:nbq@mail.iggcas.ac.cn

中图分类号: P523
计量
- 文章访问数: 1103
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- 被引次数: 0
出版历程
- 收稿日期: 2018-06-12
- 修回日期: 2019-01-25
- 刊出日期: 2019-03-15

Development of Agile Digital Ionosonde and Its Preliminary Observation

LAN Jiaping^1,2,3,4,5,
NING Baiqi^1,2,4,
ZHU Zhengping³,
HU Lianhuan^1,2,4,
SUN Wenjie^1,2,4,
LI Guozhu^1,2,4,5

1. Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029;
2. Beijing National Observatory of Space Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029;
3. College of Electronics and Information Engineering, South-Central University for Nationalities, Wuhan 430074;
4. Institutions of Earth Sciences, Chinese Academy of Sciences, Beijing 100029;
5. College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049

摘要

摘要: 在小型天线和低发射功率条件下，保证电离层测高仪观测数据质量和提高观测速度一直是电离层垂测的技术难点.针对这一问题，基于新近发展的高速数字芯片和射频器件，采用窄带跟踪滤波、脉冲压缩、编码复用和天线均衡匹配等技术，设计和研制一种敏捷数字电离层测高仪.该系统采用数米高的小型收发天线和便携式主机系统，配置任意频率扫描方式频高图、高分辨率多普勒频高图和斜向探测等多种工作模式，具有可流动观测布站、系统参数灵活捷变及适合快速电离层扰动探测等能力.敏捷数字电离层测高仪为组网观测获得大范围电离层时空变化和电离层快速扰动及传播提供了一种有效的探测手段.
- 敏捷垂直探测 /
- 数字电离层测高仪 /
- 频高图 /
- 电离层扰动
Abstract: Ionosonde, as one of the most important instruments for ionospheric observation, is usually deployed at permanent stations because of its large size antennas and main machine. Owing to the increasing spatial and temporal resolution requirements of ionosonde observations, the development trend of ionosonde is toward agile in field site setup and ionospheric disturbance detection. In recent years, some important achievements have been made in lowering the transmitting power and reducing the size of the main machine. However, it is still a standing technical issue to perform fast ionospheric sounding and produce high quality ionogram under small antennas and low transmitting power condition. In regards to this issue, based on the newly developed high speed digital circuits and RF devices, an agile digital ionosonde is designed and developed by using the narrow band tracking filtering, pulse compression, code multiplexing and antenna matching techniques. The agile digital ionosonde uses small transmitting and receiving antennas with several meters height and portable main machine. Its main characteristics include mobile observation, system parameters agility and fast ionospheric disturbance detecting. It is configured with arbitrary frequency sweeping vertical sounding, high Doppler resolution vertical sounding and oblique sounding observation mode. The observations performed at several stations in China indicate that the agile digital ionosonde can be well employed to make fast measurements with high quality ionogram and is suitable for permanent and temporary stations. The agile digital ionosonde will provide an important way to sense ionospheric temporal and spatial variations, especially the fast disturbance and its propagation in a large area.
- Agile vertical sounding /
- Digital ionosonde /
- Ionogram /
- Ionospheric disturbances

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参考文献(17)

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