Terrain Analysis and Simulation Verification on Rubble-Pile-Constructed Asteroid Surfaces

doi:10.15982/j.issn.2095-7777.2019.05.009

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Journal of Deep Space Exploration ›› 2019, Vol. 6 ›› Issue (5) : 481-487. DOI: 10.15982/j.issn.2095-7777.2019.05.009

Topic: Science and Supporting Technology of Small-Boby Exploration

Terrain Analysis and Simulation Verification on Rubble-Pile-Constructed Asteroid Surfaces

WANG Yalin^1,2, LIU Peng¹, WU Huiyang¹, LI Heng¹, ZHAO Wei¹

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Abstract

Solar system small body exploration involves ground-/space-based long-distance observation, proximity observation, landing, sample return, etc. The topography characteristics of asteroid surface are studied and a simulation model to describe asteroid surface terrains with various sizes of boulder following the Power Law distributionis proposed in this paper. Five terrains cases are selected and simulated according to the requirement of proximity operation method/actuator verifications under the specific topographic structure limitations. Results show that simulated terrains havegood agreement with asteroid terrains images, by which the proximity operation verifications, such as landing mechanism and terrain relative navigation algorithms, could be done in preliminary.

Keywords

ruble pile asteroid / surfaces terrain simulation / boulder model / Power Law distribution

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WANG Yalin, LIU Peng, WU Huiyang, LI Heng, ZHAO Wei. Terrain Analysis and Simulation Verification on Rubble-Pile-Constructed Asteroid Surfaces. Journal of Deep Space Exploration, 2019, 6(5): 481‒487 https://doi.org/10.15982/j.issn.2095-7777.2019.05.009

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