1. Study on network utilization of amateur radio band ground stations for nanosatellite
- Author
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TOKUMITSU, Masahiro, TAKADA, Taku, NAKAYA, Jun, ASAI, Fumio, and IMAI, Kazumasa
- Subjects
nanosatellite ,CubeSat ,ground station network ,orbital calculation ,satellite communication - Abstract
2021年度に打ち上げ予定のJAXA革新的衛星技術実証2号機に採択されたCubeSat「KOSEN-1」の衛星運用のために,国内にあるアマチュア無線帯用の11地上局をネットワーク利用することを計画している.CubeSatなどの超小型人工衛星の衛星運用を効率よく実施するためには,複数の地上局を活用することが有用と考えられる.高専連携地上局ネットワークの情報をもとに,軌道計算ソフトウェアを利用し,KOSEN-1衛星の運用が可能な回数や通信予想時間の増大分を見積った.複数局の可視時間帯が重なる場合には,異なる偏波受信アンテナに変更することや,同時受信した複数局のデータから欠損データを推定することで,結果として,良質のデータを得られると考えている.また,可視時間の重なる複数のCubeSatデータを受信するためには,受信に特化させた安価で簡易的な受信装置が有効であり,本研究で開発した簡易型受信機の長期間受信実験の結果から,管制局と簡易型受信機の組み合わせにより,データ受信量の増大が期待できることが示唆された., For the satellite operation of CubeSat ''KOSEN-1'' adopted on JAXA's innovative satellite technology demonstration-2 scheduled to be launched in 2021, we plan to use 11 ground stations for amateur radio band in Japan as a network. It is considered useful to utilize multiple ground stations in order to efficiently carry out satellite operation of nanosatellite such as CubeSat. In this paper, the orbit calculation software was used to calculate the increase in the number of possible satellite operations and the expected communication time, based on the information of the KOSEN-1 cooperation ground stations network. When the visible time zones of multiple stations overlap, it is considered that good quality data can be obtained by changing to different polarized wave receiving antennas and also estimating missing data from the data of multiple stations received simultaneously. In order to receive multiple CubeSat data that are continuously ejected in space, an inexpensive and simple receiver specialized for data receiving is effective. Based on the result of long-term receiving experiment of the simple receiver developed in our team, it is suggested that the combination of the main control ground stations and simple receiver can be expected to increase the amount of data received., 形態: カラー図版あり, Physical characteristics: Original contains color illustrations, 資料番号: AA2030022009, レポート番号: JAXA-RR-20-010
- Published
- 2021