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Exponential Polynomial Fitting for Fibre Spectrum CCD Profiles
Published online by Cambridge University Press: 02 January 2013
Abstract
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A fibre spectrum profile fitting method based on the least-squares method is presented in this article. For each spectrum of one fibre in spatial orientation, two exponential functions are employed to approximate the profile. Experiments are performed with both simulated profiles and observed profiles to demonstrate the effectiveness of the algorithm. Specially, the proposed method has a better performance for profiles that are asymmetric or composed of multi-Gaussian functions.
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- Copyright © Astronomical Society of Australia 2010
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