JpGU-AGU Joint Meeting 2017

講演情報

[EJ] ポスター発表

セッション記号 P (宇宙惑星科学) » P-PS 惑星科学

[P-PS05] [EJ] Mars and Mars system: results from a broad spectrum of Mars studies and aspects for future missions

2017年5月20日(土) 13:45 〜 15:15 ポスター会場 (国際展示場 7ホール)

コンビーナ:宮本 英昭(東京大学)、臼井 寛裕(東京工業大学地球生命研究所)、松岡 彩子(宇宙航空研究開発機構 宇宙科学研究所 太陽系科学研究系)、Sushil K Atreya(University of Michigan Ann Arbor)

[PPS05-P14] Orbit determination of Mars Spacecraft with Optical Celestial Techniques and X-ray pulsars

*Erhu WEI1 (1.School of Geodesy and Geomatics, Wuhan University)

キーワード:Autonomous navigation, Integrated Navigation, Mars Spacecraft Orbit, Information Fusion

The combination of Multi-source observation data for autonomous navigation of deep space probes is a key issue for probe control and scientific applications. In this paper, we investigated the performance of integrated Optical Celestial Navigation (OCN) and X-ray Pulsars Autonomous Navigation (XNAV) system, the observations of which were simulated to determine the orbit of Mars Pathfinder. The observations of single system OCN and XNAV were simulated in term of Unscented Kalman Filter (UKF) in order to avoid the linearization bias of the orbit dynamical model. The integrated system was realized by Federal Kalman Filter (FKF) in order to inherit the advantage of the single system. Indeed, the results of the experiments show that the biases between nominal orbit and our calculated orbit are within 3 km in 3-axis, which was a very positive evidence to our integrated system’s ability.