Background radiation estimate of the spectral data by polynomial fitting

摘要

The present invention relates to a method of estimating the background radiation in the spectral data. A step of fitting iteratively the reference data polynomial, and determining the allowable deviation of the reference data from the polynomial method, the data points of the spectral data or the reference data exceeds the allowable deviation from the polynomial The clip includes the steps of providing reference data for the next iteration to meet the criteria for termination. Reference data used for the first, is based on the spectral data. A step of based on the fact that fitting the spectral data polynomials different orders, generate each estimate of the background radiation of the spectral data, the method comprising the and / or the order of the polynomial used to estimate the background radiation and a step of, based on fitting the criteria it is applied to the fitting polynomial of said different, one of the estimates of the background radiation, is selected. The method may further comprise the step of estimating the noise in the spectral data from the reference data.