Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010scchg..53.2136l&link_type=abstract
Science China Physics, Mechanics and Astronomy, Volume 53, Issue 12, pp.2136-2144
Astronomy and Astrophysics
Astronomy
2
Titanium Content, Linear Regression, Absorption Features, Moon, Chang'E-1
Scientific paper
Two linear regression models based on absorption features extracted from CE-1 IIM image data are presented to discuss the relationship between absorption features and titanium content. We computed five absorption parameters (Full Wave at Half Maximum (FWHM), absorption position, absorption area, absorption depth and absorption asymmetry) of the spectra collected at Apollo 17 landing sites to build two regression models, one with FWHM and the other without FWHM due to the low relation coefficient between FWHM and Ti content. Finally Ti content measured from Apollo 17 samples and Apollo 16 samples was used to test the accuracy. The results show that the predicted values of the model with FWHM have many singular values and the result of model without FWHM is more stable. The two models are relatively accurate for high-Ti districts, while seem inexact and disable for low-Ti districts.
Liu Fujiang
Liu Zheng
Qiao Liang
Shi Jinping
Wu Weilong
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