Computer Science
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001iaop.work...33g&link_type=abstract
Forum on Innovative Approaches to Outer Planetary Exploration 2001-2020, p. 33
Computer Science
Data Compression, Imaging Spectrometers, Imaging Techniques, Galileo Spacecraft, Space Missions, Deep Space
Scientific paper
Hyperspectral sensors have played an important role in the exploration of the outer solar system. Hyperspectral sensors or imaging spectrometers have been flown on the Galileo and Cassini spacecraft to map the compositions of planetary surfaces and atmospheres. The Galileo Near Infrared Mapping Spectrometer (NIMS) discovered the presence and mapped the distribution of organics, hydrated sulfates, carbon dioxide, and sulfur dioxide on the surface of the icy Galilean satellites. The problem with sensors such as NIMS and the Cassini Visual Infrared Mapping Spectrometer (VIMS) is that they collect imaging with hundreds of bands of spectral data that can overload downlink bandwidths and onboard memory resources rapidly. Hence, an efficient data compression method for use with imaging spectrometers would enable more surfaces and atmospheres to be mapped during any given deep space planetary mission. Additional information is contained in the original extended abstract.
Granahan James C.
Rupert S. T.
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