Generation of Digital Elevation Map of the Moon from Observation Data Interpolated by Fractal Modeling.

概要

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Navigation, guidance and control (GN&C) based on imagery information is a key technology in lunar landings. A digital elevation map (DEM) is needed to verify GN&C algorithms. We propose a new method of generating a DEM that looks similar to one made from past measurements and at the same time allows a magnified use for lower altitudes. In the proposed method, small ups and downs, which are lost in a coarse DEM made from photographic measurements, are extrapolated by fractal modeling. Furthermore, small craters are added to match their statistical distributions from data on previous measurements. It is applied to a moon DEM. The obtained DEM shows that the small ups and downs and craters lost in the original DEM are restored; this restoration looks quite similar to the observation photos. Its georama is produced by laser lithography, and its photo also looks similar to the observation photos.
公益社団法人計測自動制御学会の論文