Computer Science – Sound
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006agusmin43e..07l&link_type=abstract
American Geophysical Union, Fall Meeting 2007, abstract #IN43E-07
Computer Science
Sound
5215 Origin Of Life, 6281 Titan, 6297 Instruments And Techniques, 0910 Data Processing
Scientific paper
A prominent concept for future Titan exploration is an airship or altitude-controlled balloon which could drift or be driven slowly across Titan's varied, Earth-like landscape. Science goals that such a mission could address include high- resolution imaging for geomorphology and meteorology, subsurface sounding by radar, and in-situ sampling of surface material for analysis of organic composition. On-board science autonomy has an important role to play in such a mission. One factor is the 1.25hr one-way light time which drives latency in ground control intervention during critical events like surface sampling. A second issue is that while formidable data returns are possible via a robust combination of direct to earth (DTE - a few kbps, possibly continuously) and orbiter relay (intermittent windows of some tens of minutes permitting Gbits per day), the instruments on the platform are able to generate far larger data volumes. On-board autonomy will therefore add science value by generating more compact data products and prioritizing data for downlink. Autonomous science product generation might include selective highlighting of in-situ sampling data, generation of mosaic maps, digital elevation models and trajectory reconstruction from image data (rather than telemetering all individual images), landscape classification (dunes, river networks, etc.), and two-dimensional subsurface profiles generated by stacking individual sounder echoes. This presentation will summarize present thinking on a future Titan airborne mission and the role of autonomy.
Elliott Jacquelyn
Hall Jennifer
Jones Jason J.
Lorenz Ralph D.
Lunine Jonathan I.
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