CAREER: Exploiting the Low/Medium Frequency (LF/MF) Radio Band for Ionospheric Remote Sensing

提案编号：AGS 1653114首席研究员：莫里斯·科恩研究所：佐治亚理工学院提案标题：职业：利用低频/中频无线电频段进行电离层遥感该提案旨在利用300千赫附近的无线电传输测量60-100公里高度范围内的电子密度。这些高度的电子密度会受到对流层天气(如雷暴)、地震、地磁和太阳活动的干扰。这些干扰影响用于导航、定位和通信的无线电波的传播，但它们的影响从未被系统地研究过。拟议的工作主要是试验性的，目的是利用机会信标信号来确定和量化几类电离层干扰的可探测性。PI将设计和制造接收器，探测从GPS信标网络发射的300 kHz附近的低频/中频无线电波。计划在中纬度地区在静止条件下和日食期间以及在高纬度地区在静止和人工加热条件下进行一系列观测活动。该建议还包括三个教育部分：1.1-2篇博士论文的材料；2.进行相关测量的本科生水平气球项目；3.通过在农村学校安装低频/中频接收器进行K-12教学和参与。

Proposal Number: AGS 1653114Principal Investigator: Morris CohenInstitution: Georgia Tech Proposal title: CAREER: Exploiting the LF/MF Radio Band for Ionospheric Remote Sensing This proposal aims to measure electron density in the 60-100 km altitude range using radio transmissions near 300 kHz. Electron density at these altitudes is perturbed by tropospheric weather (i. e., thunderstorms), and by seismic, geomagnetic, and solar activity. These disturbances affect the propagation of radio waves used for navigation, positioning and communication, but their effects have never been systematically explored. The proposed work is primarily experimental in nature, with the objectives of characterizing and quantifying the detectability of several types of ionospheric disturbances using beacon signals of opportunity. The PI will design and build receivers that will detect LF/MF radio waves near 300 kHz transmitted from a network of GPS beacons. A series of observation campaigns is planned at midlatitudes under quiescent conditions and during a solar eclipse, and at high latitudes under quiescent and artificially heated conditions. The proposal also contains three educational components: 1. Material for 1-2 Ph.D. dissertations; 2. An undergraduate level balloon project to make correlative measurements; 3. K-12 instruction and participation via installation of LF/MF receivers in rural area schools.