Extraction of Characteristic Spectral Line Based on Gaussian Fitting Method

Describes in detail the method to process the characteristics of the spectral lines using the Gaussian fitting based on the least-squares method. By separately truncating the peak area data and statistically analyzing and setting fitting parameters, multiple peaks overlap interference can be better avoided, and more accurate fitting of spectral characteristics of spectra of line center and intensity can be worked out. Experimental results show that the algorithm can effectively improve the fitting accuracy, and can make preparation for the calculation of Einstein shift and analysis of chemical elements in stars.