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Analysis of Lunar Landing Strategy for Chang’e-3 Utilizing Image Process Result
Guee Won Moon(문귀원) Korean Institute of Information Scientists and Eng 2023 정보과학회논문지 Vol.50 No.5
China’s first lunar lander, Chang’e-3, successfully landed on the moon in 2013. This research tracks movement of a lunar crater in the real-time lunar landing video of Chang’e-3 and combines altitude & time information shown in the video to extract 4-dimensional behavior just before the lunar landing. For this purpose, one crater edge in the lunar surface image at an altitude of 129m is selected as a feature point. It is continuously traced by computational image process while descending to an altitude of 50 m, which is the most decisive section in the successful moon soft landing. This research restores realistic details of landing behavior including hovering and obstacle avoidance maneuvers of Chang’e-3 and analyzes the success strategy of lunar landing.