TY - GEN
T1 - Autonomous Astronomical Positioning Method of Lunar Satellite with Error Analysis Based on Moon Phase Characteristics
AU - Gao, Ziqian
AU - Wang, Weihong
AU - Liu, Zhenghua
AU - Wang, Haiyong
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - This study focuses on moon phase characteristics observed by lunar satellite and proposes an autonomous astronomical positioning method with error analysis. Based on the orbital mechanics theory and astronomical almanac, the comprehensive orbit model of the Sun-Earth-Moon system together with lunar satellite is established. Through moon phase analysis, the limb feature point and terminator feature point on the imaging array of lunar sensor can be identified and extracted, thus obtaining lunar centroid by existing image processing algorithms. With precise attitude reference provided by star sensor, the positioning method by 2 cases corresponding to double feature types is presented accompanied by error derivation. The simulation compares the 2 cases through a 12-hour circumlunar satellite orbit with performance assessment based on reference centroiding precision, and verifies their applicabilities in positioning during moon phase variation.
AB - This study focuses on moon phase characteristics observed by lunar satellite and proposes an autonomous astronomical positioning method with error analysis. Based on the orbital mechanics theory and astronomical almanac, the comprehensive orbit model of the Sun-Earth-Moon system together with lunar satellite is established. Through moon phase analysis, the limb feature point and terminator feature point on the imaging array of lunar sensor can be identified and extracted, thus obtaining lunar centroid by existing image processing algorithms. With precise attitude reference provided by star sensor, the positioning method by 2 cases corresponding to double feature types is presented accompanied by error derivation. The simulation compares the 2 cases through a 12-hour circumlunar satellite orbit with performance assessment based on reference centroiding precision, and verifies their applicabilities in positioning during moon phase variation.
KW - Sun-Earth-Moon system
KW - celestial navigation
KW - lunar satellite
KW - lunar sensor
KW - moon phase
UR - https://www.scopus.com/pages/publications/105035989948
U2 - 10.1109/RAAI67517.2025.11423355
DO - 10.1109/RAAI67517.2025.11423355
M3 - 会议稿件
AN - SCOPUS:105035989948
T3 - 2025 5th International Conference on Robotics, Automation, and Artificial Intelligence, RAAI 2025
SP - 97
EP - 102
BT - 2025 5th International Conference on Robotics, Automation, and Artificial Intelligence, RAAI 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 5th International Conference on Robotics, Automation, and Artificial Intelligence, RAAI 2025
Y2 - 18 December 2025 through 20 December 2025
ER -