High-Frequency Ionospheric Monitoring System for Over-the-Horizon Radar in Canada
High-Frequency Ionospheric Monitoring System for Over-the-Horizon Radar in Canada
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DOI：
10.1109/tgrs.2019.2905757
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发表时间：
2019-09-01
影响因子：
8.2
通讯作者：
Riddolls, Ryan
中科院分区：
文献类型：
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作者：
Thayaparan, Thayananthan;Dupont, Dale;Riddolls, Ryan
加拿大国防部 (DND) 正在开发一种实验性超视距雷达 (OTHR)，可用于监视加拿大。由于地球高纬度和极地地区电离层条件的动态变化，需要定期调整OTHR的工作传输频率和仰角，以保持下行目标的恒定照明。在本文中，使用 3-D 电离层射线追踪模拟来确定短程和远程 OTHR 操作的可行工作频率和仰角雷达参数。所有可行的雷达配置的集合共同形成了一个特征轮廓，该轮廓随着一天中的时间、季节和太阳活动等因素的变化而变化和变形。从本文中获得的工作频率和仰角范围将有助于在人们知之甚少的高纬度和极地地区开发用于实验性 OTHR 配置的发射机和接收机天线布局。这些方法还将有助于形成频率监测系统 (FMS) 的基础，该系统将实时控制这些极地 OTHR 系统的配置。
The Canadian Department of National Defence (DND) is developing an experimental over-the-horizon radar (OTHR) with the potential for surveillance of Canada. Because of dynamically changing ionospheric conditions in the Earth's high-latitude and polar regions, the operating OTHR transmission frequency and elevation angle need to be adjusted regularly to maintain constant illumination of downrange targets. In this paper, the feasible operating frequency and elevation angle radar parameters are determined for short- and long-range OTHR operation using 3-D ionosphere ray-tracing simulations. Together, the collection of all feasible radar configurations forms a characteristic profile which shifts and deforms as factors such as the time of day, season, and solar activity are varied. The range of operating frequencies and elevation angles obtained from this paper will aid developing the transmitter and receiver antenna layouts for experimental OTHR configurations in the poorly understood high-latitude and polar regions. These methods will also help to form the basis of the frequency monitoring systems (FMS) that will control the configuration of these polar OTHR systems in real time.