JpGU-AGU Joint Meeting 2020

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P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM12] Coupling Processes in the Atmosphere-Ionosphere System

convener:Huixin Liu(Earth and Planetary Science Division, Kyushu University SERC, Kyushu University), Yuichi Otsuka(Institute for Space-Earth Environmental Research, Nagoya University), Yue Deng(University of Texas at Arlington), Loren Chang(Institute of Space Science, National Central University)

[PEM12-P38] Using a Software Defined Radio to Receive the FORMOSAT-7 RF Beacon and Derive the Total Electron Content

*Tsai-Ju Yu1, Loren C. Chang1, Jann-Yenq Liu1, Tung-Yuan Hsiao2 (1.Graduate Institute of Space Science and Engineering, National Central University, Taoyuan City, Taiwan, 2.Accelerator Laboratory, Nuclear Science and Technology Development Center, National Tsing Hua University, Hsinchu, Taiwan)

Keywords:GNU Radio, FORMOSAT-7, USRP, beacon, total electron content (TEC)

FORMOSAT-7/COSMIC-2 is a joint US-Taiwan six satellite constellation launched in 2019 focused on atmospheric and space weather. One of the payloads is a radio frequency (RF) beacon that transmits at 400 MHz, 965 MHz and 2200 MHz. By receiving two of these frequencies and calculating the phase difference, the ionospheric total electron content (TEC) can be derived. For this purpose, a simple RF beacon receiver was set up using the GNU Radio, a free and open-source signal processing software, and a Universal Software Radio Peripheral (USRP) software defined radio (SDR). We compare the results with the data obtained by existing ground based GNSS receivers to determine if the results are consistent.