一个VHF相位阵列雷达用于观测大气动态和电离层等离子体不规则
P Nandakumar1, Jawad Y Siddiqui2, P Srinivasulu3
1Institute of Radio Physics and Electronics, University of Calcutta, Kolkata, West Bengal, India. pnkumar1990@gmail.com.
Scientific reports
|September 27, 2024
概括
一个新的VHF相位阵列雷达,加尔各答大学的平流层-热带层雷达 (CUSTR),已建立用于大气动态观测. 最初的发现包括大气边界层和风力测量,中层回声和电离层不规则.
科学领域:
- 大气物理学 大气物理学
- 地质物理学 地质物理学
- 雷达气象 雷达气象学
背景情况:
- 大气动力学研究需要先进的观测工具.
- 高频分相阵雷达为探测大气提供了独特的能力.
研究的目的:
- 描述刚刚安装的加尔各答大学的平流层-高流层雷达 (CUSTR).
- 介绍来自CUSTR系统的初步科学观察结果.
主要方法:
- 安装一个53 MHz的VHF相位阵列雷达,配有475个Yagi-Uda天线.
- 使用具有2kW发射接收模块 (TRM) 的高功率,完全活跃的相位阵列系统.
- 采用电子光束定向 (360°自行方向,40°偏离顶点) 和双操作模式 (多普勒光束摆动,间隔天线).
主要成果:
- CUSTR系统的成功运行,总峰值功率为950千瓦.
- 电子光束转向能力的演示.
- 获取关于大气边界层,热层-低层平流层风,中层回声和离子层不规则的初始数据.
结论:
- CUSTR系统是大气动力学研究的一个强大的新工具.
- 最初的观测证实了系统测量各种大气现象的能力.
- 进一步的研究将利用CUSTR进行详细的大气研究.
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