Скачать или смотреть Autonomous Selection of Spacecraft Landing Location on Hazardous Small Bodies

Video presentation of:

J. D. Nelson and H. Schaub, “Autonomous Selection of Spacecraft Landing Location on Hazardous Small Bodies,” AAS/AIAA Astrodynamics Specialist Conference, Lake Tahoe, CA, Aug. 9–13, 2020.

In recent years, there has been a great deal of research and development per- taining to the autonomous landing of spacecraft on small bodies, such as asteroids. The capabilities to identify and avoid large rocks and other hazards on the surface of small bodies has seen significant improvement, however most modern tech- niques search for a location on the surface that contains no hazards within a scaled circular/elliptical footprint. A challenge with this approach is that such accept- able landing locations may be few and far between, or may not even exist at all, on asteroids with highly hazardous terrain. This paper proposes the use of a ge- ometrically conforming footprint to significantly widen possible landing regions. A technique is formulated as the foundation for an autonomous landing location selection algorithm that utilizes such a footprint. This technique offers coarse and fine variations for determining a landing location, both with their own pros and cons. An algorithm that utilizes this technique is constructed, and preliminary test results are presented. These results highlight the differences between coarse and fine variations, and show the current state of the technique to have a 94.3% success rate. Finally, improvements and the future development of this technique are discussed.

Conference paper: http://hanspeterschaub.info/Papers/Ne...