Digital Terrain Map Based Safe Landing Site Selection for Planetary Landing

摘要

Safe landing site selection of a planetary lander is one of the most important technologies for the lander's mission success. In this paper, a new concept for safe landing site selection is proposed based on the digital terrain map and contour lines generated by light detection and ranging (LIDAR) measurements. The design parameters of the proposed approach are defined and systematically classified. Then, the effect of key parameters related to the performance of the algorithm, i.e., terrain roughness is analyzed by comparing the results of three different types of terrain. The simulation results show that the proposed method is well-performed under various circumstances.