JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
titleGuidance Law Based on Real-time Trajectory Prediction for D-SEND#2
Author(jpn)鈴木, 広一; 二宮, 哲次郎
Author(eng)Suzuki, Hirokazu; Ninomiya, Tetsujiro
Author Affiliation(jpn)宇宙航空研究開発機構研究開発部門第一研究ユニット(JAXA); 宇宙航空研究開発機構航空技術部門飛行技術研究ユニット(JAXA)
Author Affiliation(eng)Research Unit I, Research and Development Directorate, Japan Aerospace Exploration Agency (JAXA); Flight Research Unit, Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA)
Issue Date2018-02-22
PublisherJapan Aerospace Exploration Agency (JAXA)
Publication titleJAXA Research and Development Report
Start page1
End page16
Publication date2018-02-22
AbstractA flight experiment using a stratospheric balloon, designated as D-SEND#2, was carried out in 2015. This paper describes a guidance law of the D-SEND#2 vehicle. A typical problem of flight experiment using a stratospheric balloon is that it has no nominal trajectory. Therefore, a new real-time trajectory prediction method is devised to overcome this problem. The method solves equations of motion directly for various load factor commands. The guidance law was evaluated using Monte Carlo simulation, and its result was the success rate of 98.1%. The guidance law has a little tolerance to the uncertainty of steady wind and of the model error of drag coefficient because the vehicle has no engine nor devices for velocity control. Actual flight experiments demonstrated that the guidance law satisfied all mission requirements and that it contributed greatly to the mission success.
DescriptionPhysical characteristics: Original contains color illustrations
形態: カラー図版あり
KeywordsGuidance and Control; Real-time; Trajectory Prediction; D-SEND
Document TypeTechnical Report
JAXA Category研究開発報告
NASA Subject CategoryAircraft Communications and Navigation
Report NoJAXA-RR-17-010E

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