「火星探査航空機のGNCシステム開発」
＊得竹浩、栗原真之（金沢大学）
火星探査航空機ではペイロードの制約から非常に軽量で小型の機器しか用いることができない．一方，非常に不確定な環境の中で精密な誘導制御を行う必要がある．また航空機は動圧を利用して飛行するため，通常の宇宙機と比べてダイナミクスの帯域は高い．このような困難な課題を解決するために，火星探査航空機ワーキンググループでは新しい小型軽量の火星探査航空機用姿勢検出システムと位置検出システムの開発を進めている．本発表では，火星探査航空機用GNCシステムの概要と姿勢検出アルゴリズム及び基礎実験結果について紹介する．
「Development of GNC System for a Mars Airplane」
*H. Tokutake, M. Kuribara (Kanazawa University)
Guidance, navigation and control system is essential for the mission successes of a Mars airplane. The airplane dynamics and flight trajectory should be controlled autonomously even in the storm with very light and small avionics system. In addition, the dynamics of the Mars airplane is faster than that of usual spacecraft, because it is affected by the dynamic pressure. This is a challenging problem. We propose the attitude sensing system and positioning system of the Mars airplane, which utilize the visual image and outputs of photodetectors. In this presentation, the attitude sensing system is focused on. In this system, sunlight and thermal radiation from the ground are detected separately using the differences in their wavelengths, and they are provided for the calculation of the airplane attitude. In the present research, basic experiments and the algorithm used to estimate the airplane attitude from the photodetector outputs are described.