日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 P (宇宙惑星科学) » P-EM 太陽地球系科学・宇宙電磁気学・宇宙環境

[P-EM15] 太陽地球系結合過程の研究基盤形成

2019年5月30日(木) 17:15 〜 18:30 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:山本 衛(京都大学生存圏研究所)、小川 泰信(国立極地研究所)、野澤 悟徳(名古屋大学宇宙地球環境研究所)、吉川 顕正(九州大学大学院理学研究院地球惑星科学部門)

[PEM15-P08] Status of GNU Radio Beacon Receiver 2 (GRBR2) development

*山本 衛1松永 真由美2Tsunoda Roland3 (1.京都大学生存圏研究所、2.東京工業大学、3.SRI International)

キーワード:衛星ビーコン観測、ディジタル受信機開発、全電子数

GNU Radio Beacon Receiver (GRBR) is the very successful digital receiver developed for dual-band (150/400MHz) beacon experiment. We were successfully conducted observations of total-electron content (TEC) of the ionosphere over Japan and in southeast Asia. However, many beacon satellites is now aging, and its number is decreasing. We now have a project to start new satellite-ground beacon experiment with new satellite constellations. One of them is TBEx (Tandem Beacon Explorer), a project by SRI International, to fly a constellation of two 3U cubesats with triband beacon transmitters. Another one is a project of FORMOSAT-7/COSMIC-2 by Taiwan/USA. Well-known mission of COSMIC-2 is GNSS occultation experiment, but the satellites carry triband beacon transmitters. All of these satellites will be placed into low-inclination orbits by the same launch vehicle in 2018, which will give us great opportunities to enhance studies of the low-latitude ionosphere. We develop a new digital receiver, GRBR2, for these new satellite beacon. GRBR2 is a four channel receiver at 150/400/965/1067MHz beacon signals from two satellite constellations. Now The reveiver system was finally fixed. Problem of the project of delay of the satellite launch. But it is now on schedule for launch by 2019 summer. We start deploying GRBR2 in southeast Asian countries. In this presentaiton, we will report GRBR2 system and its performance including results from test experiment in the field.