Spectroscopy and Spectral Analysis, Volume. 31, Issue 12, 3285(2011)
Study on the Automatic Extraction Method of Spectral Data Features in Laser Induced Breakdown Spectroscopy
According to that the spectral line broadening of laser induced breakdown spectroscopy (LIBS) was lorentz nonlinear function model, using Levenberg-Marquardt(L-M) agorithm to optimally estimate the undetermined parameter in the function, the continuum background radiation and peak position and peak intensity were corrected, and the method of data points automatic extraction for fitting was analysed. Automatic fitting and feature parameter extraction for spectral data of LIBS based on L-M algorithm that was hybrid programming with matrixVB and VB were accomplished,and the result was compared with the origin7.5 data analysis software which was manual and commonly used and verified its stability and reliability.
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LIU Li-tuo, LIU Jian-guo, ZHAO Nan-jing, LU Cui-ping, CHEN Dong, SHI Huan, WANG Chun-long, ZHANG Yu-jun, LIU Wen-qing. Study on the Automatic Extraction Method of Spectral Data Features in Laser Induced Breakdown Spectroscopy[J]. Spectroscopy and Spectral Analysis, 2011, 31(12): 3285
Received: Jan. 15, 2011
Accepted: --
Published Online: Jan. 5, 2012
The Author Email: Li-tuo LIU (ltuoliu@aiofm.ac.cn)