@inproceedings{94a6e3e87a67437f9c45b78d400f8d04,
title = "Application of Levenberg-Marquardt algorithm in the Brillouin spectrum fitting",
abstract = "Brillouin distributed optical fiber sensing system based on spontaneous Brillouin scattering frequency shift measurement may measure temperature in the optical fiber, due to the dependence of spontaneous Brillouin scattering frequency shift on temperature. In this paper, nonlinear theoretical models of the Brillouin spectrum in the BOTDR temperature sensing system are analyzed. The model parameters are optimized with Levenberg-Marquardt algorithm. By numerical calculation, it is indicated that pseudo-Voigt function can approach approximated the Voigt profile well and quickly.",
keywords = "Distributed temperature sensing, Levenberg-Marquardt algorithm, Nonlinear curve fitting, Pseudo-Voigt function, Spontaneous brillouin scatting, Voigt function",
author = "Chuankai Zhang and Yuanhong Yang and Anqi Li",
year = "2008",
doi = "10.1117/12.807646",
language = "英语",
isbn = "9780819473639",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Seventh International Symposium on Instrumentation and Control Technology",
note = "7th International Symposium on Instrumentation and Control Technology: Optoelectronic Technology and Instruments, Control Theory and Automation, and Space Exploration ; Conference date: 10-10-2008 Through 13-10-2008",
}