曲靖非相干散射雷达观测研究进展与展望

苗建苏; 丁宗华; 代连东; 杨嵩; 吴健

doi:10.19975/j.dqyxx.2022-082

曲靖非相干散射雷达观测研究进展与展望

doi: 10.19975/j.dqyxx.2022-082

苗建苏^{1, 2, 3,},
丁宗华^{1, 2, 3, ,},
代连东^{1, 2, 3},
杨嵩^{1, 2, 3},
吴健^{1, 2, 3}

1.
中国电波传播研究所，青岛 266107
2.
电波环境特性及模化技术重点实验室，青岛 266107
3.
云南昆明电磁波环境国家野外科学观测研究站，曲靖 655000

基金项目: 国家重点研发计划资助项目（2022YFF0503901）

详细信息

作者简介:
苗建苏（1966-），男，高级工程师. 主要从事电离层探测技术研究. E-mail：miaoqingdao@163.com

通讯作者:
丁宗华（1978-），男，研究员. 主要从事电离层探测与电波传播研究. E-mail：zhdingmou@163.com

中图分类号: P352
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- 文章访问数: 121
- HTML全文浏览量: 131
- PDF下载量: 25
- 被引次数: 0
出版历程
- 收稿日期: 2022-12-22
- 修回日期: 2023-02-06
- 录用日期: 2023-02-17
- 网络出版日期: 2023-03-07
- 刊出日期: 2024-01-01

Progress and prospects based on Qujing incoherent scatter radar measurements

Miao Jiansu^{1, 2, 3
,},
Ding Zonghua^{1, 2, 3
, ,},
Dai Liandong^{1, 2, 3},
Yang Song^{1, 2, 3},
Wu Jian^{1, 2, 3}

1.
China Research Institute of Radiowave Propagation, Qingdao 266107, China
2.
Key Laboratory of Electromagnetic Environment, Qingdao 266107, China
3.
Yunnan Kunming Electromagnetic Environment National Observation and Research Station, Qujing 655000, China

Funds: Supported by the National Key Research and Development Program (Grant No. 2022YFF0503901)

摘要

摘要: 本文介绍了我国曲靖非相干散射雷达的主要技术方案，结合实测数据分析表明该雷达具备了电离层电子密度与等离子体温度观测、空间碎片凝视探测与月球二维成像探测等能力，可用于研究电离层F层气候学特征、电子密度暴时变化与异常增强等天气事件、E-F谷区结构与变化、约3 cm以上尺寸空间碎片的分布特征与模型、月球不同区域的散射回波特性等. 下一步将重点开展低电离层与北驼峰结构及演化过程、电离层暴时与扰动特性观测.
- 非相干散射雷达 /
- 技术方案 /
- 电离层 /
- 空间碎片 /
- 月球
Abstract: Herein, the technical characteristics and programme of Qujing incoherent scatter radar (the first one in China) are described. The measurement ability in the ionosphere, space debris, and the Moon was investigated using the data. The results showed that this radar is of importance useful for the measuring ionospheric climatologic property, analyzing storm-time and abnormal enhancement events analysis, studying E-F valley and its variations, the determining and modeling space debris distribution characteristics and model, and identifying the scatter echo characteristics from the different regions of the Moon. The next work will focus on the measurement of the structure and evolution of the lower ionosphere and the northern ionosphere crest, storm-time variations, and disturbance characteristics property.
- incoherent scatter radar /
- technical programme /
- ionosphere /
- space debris /
- Moon

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图 1 电离层散射功率剖面（a）与功率谱（b）示例

Figure 1. Examples of ionospheric echo profile (a) and power spectra (b)

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图 2 磁静日电离层电子密度观测. （a）2月26日；（b）11月1日；（c）11月7日；（d）11月8日

Figure 2. Examples of electron density under quiet geomagnetic conditions. (a) February 26; (b) November 1; (c) November 7; (d) November 8

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图 3 磁暴期间电离层电子密度观测

Figure 3. Examples of electron density during the geomagnetic storm event in April 2015

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图 4 曲靖地区日间不同地方时的电子密度剖面对比

Figure 4. Comparison of the daytime electron density profiles at different local times in Qujing

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图 5 方位固定、仰角扫描探测的功率剖面（a）与子午链不同台站foF2变化（b）

Figure 5. Examples of the echo profile with the fixed azimuth and scanning elevation (a) and the ionospheric foF2 at different sites along the meridian chain (b)

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图 6 最大电子密度、峰值高度、电子温度与离子温度的日变化

Figure 6. Daily variations in NmF2, hmF2, Te and Ti

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图 7 空间碎片穿越雷达波束期间的回波（a）与距离（b）变化

Figure 7. Variations in the echo amplitude and range of space debris when passing through the beam

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图 8 曲靖（a）与EISCAT（b）非相干散射雷达实测空间碎片高度变化

Figure 8. Space debris height distribution of Qujing (a) and EISCAT ISR (b)

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图 9 曲靖上空不同高度的空间碎片等效尺寸（a）与径向速度（b）分布

Figure 9. Effective size (a) and radial velocity (b) distribution of space debris with orbital height

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图 10 曲靖非相干散射雷达月球回波-时延变化（a）与月球回波二维像（b）

Figure 10. Echo-delay variation (a) and two-dimensional image (b) by Qujing ISR

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