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题名: A method for resolving overlapped peaks in laser-induced breakdown spectroscopy (LIBS)
作者: Zhang B(张博) ; Yu HB(于海斌) ; Sun LX(孙兰香) ; Xin Y(辛勇) ; Cong ZB(丛智博)
作者部门: 工业控制网络与系统研究室
关键词: Curve fitting ; Data processing
刊名: Applied Spectroscopy
ISSN号: 0003-7028
出版日期: 2013
卷号: 67, 期号:9, 页码:1087-1097
收录类别: SCI ; EI
产权排序: 1
摘要: Spectral peak overlapping is a basic problem in analytical data processing of laser-induced breakdown spectroscopy (LIBS). Curve fitting is the typical method of resolving overlapped peaks. For preventing ambiguous fitting, appropriate initial values must be known. The aim of this work was to present a method that could be used to determine appropriate initial values of the curve-fitting method by using fractional differential theory. According to the variation of characteristic points of Lorentzian peaks at different fractional differential orders, parameter estimators were obtained that were used to calculate the initial values of the curve-fitting method. As it is a widely used optimization method, the Levenberg-Marquardt method was used in curve fitting. Simulation and LIBS experimental results proved that the proposed method of the initial value estimation can effectively resolve the overlapped peaks in LIBS data processing.
语种: 英语
WOS记录号: WOS:000323805800014
WOS标题词: Science & Technology ; Technology
类目[WOS]: Instruments & Instrumentation ; Spectroscopy
关键词[WOS]: DECONVOLUTION
研究领域[WOS]: Instruments & Instrumentation ; Spectroscopy
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内容类型: 期刊论文
URI标识: http://ir.sia.cn/handle/173321/12543
Appears in Collections:工业控制网络与系统研究室_期刊论文

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Recommended Citation:
张博; 于海斌; 孙兰香; 辛勇; 丛智博.A method for resolving overlapped peaks in laser-induced breakdown spectroscopy (LIBS),Applied Spectroscopy,2013,67(9):1087-1097
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文件名: A method for resolving overlapped peaks in laser-induced breakdown spectroscopy (LIBS).pdf
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