Spectroscopy and Spectral Analysis, Volume. 33, Issue 2, 558(2013)
Comparison of Different Template Matching Methods of Automatic Stellar Spectrum Parameter Measurement
Template matching is one of the most commonly used methods of automatic stellar spectrum parameter measurement. The present paper made comparisons among the three commonly used template matching methods K-Nearest Neighbor (KNN), the Chi-square minimization and cross correlation method. The Continuum normalization and flux normalization were made first. Then the three mentioned methods were compared in measurement results of stellar spectrum parameters. Experiments on SDSS DR8 large sample spectra showed that the cross correlation method had comparable advantages.
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LIU Jie, PAN Jing-chang, LIU Meng, WEI Peng, LUO A-li. Comparison of Different Template Matching Methods of Automatic Stellar Spectrum Parameter Measurement[J]. Spectroscopy and Spectral Analysis, 2013, 33(2): 558
Received: Jun. 3, 2012
Accepted: --
Published Online: Mar. 27, 2013
The Author Email: Jie LIU (lj2002@sdu.edu.cn)