Journal
ICARUS
Volume 195, Issue 1, Pages 169-183Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.icarus.2007.11.025
Keywords
Mars, surface; spectroscopy; instrumentation; mineralogy
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We have developed two automated detectors that can recognize the sulfate mineral jarosite in unknown visible to near-infrared spectra (3502500 nm). The two detectors are optimized for use within the terrestrial and martian atmospheres. The detectors are built from Support Vector Machines trained using a generative model to create linear mixtures of library mineral spectra. Both detectors performed with an average similar to 90% accuracy on laboratory spectra of single minerals and the laboratory and field spectra of rocks collected in a hydrothermal environment. This type of algorithm will contribute to the efficiency of onboard data analysis of landed and orbital visible/near-infrared spectrometers at Mars. (C) 2007 Elsevier Inc. All rights reserved.
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