Dunstan, Martin

Martin, Iain

Parkes, Steve

Rowell, Nick

English

Spacecraft exploration of asteroids presents autonomous-navigation challenges that can be aided by virtual models to test and develop guidance and hazard-avoidance systems. Researchers have extended and applied graphics techniques to create high-resolution asteroid models to simulate cameras and other spacecraft sensors approaching and descending toward asteroids. A scalable model structure with evenly spaced vertices simplifies terrain modeling, avoids distortion at the poles, and enables triangle-strip definition for efficient rendering. To create the base asteroid models, this approach uses two-phase Poisson faulting and Perlin noise. It creates realistic asteroid surfaces by adding both crater models adapted from lunar terrain simulation and multiresolution boulders. The researchers evaluated the virtual asteroids by comparing them with real asteroid images, examining the slope distributions, and applying a surface-relative feature-tracking algorithm to the models. (c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.</p

University of Dundee Online Publications

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Asteroid modeling for testing spacecraft approach and landing

Iain Martin

Steve Parkes

Martin Dunstan

Nick Rowell

Crossref

IEEE Computer Graphics and Applications

Asteroid Modeling for Testing Spacecraft Approach and Landing

https://discovery.dundee.ac.uk/files/5321031/AsteroidModelingforTestingSpacecraftApproachandLanding_IEEE_GA_Accepted.pdf

Asteroid modeling for testing spacecraft approach and landing

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University of Dundee Online Publications

University of Dundee Online Publications

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