Retrieval of weak non-resonant photoacoustic signal with the chaotic oscillator algorithm

doi:10.1364/OE.431548

	Retrieval of weak non-resonant photoacoustic signal with the chaotic oscillator algorithm
	Luo, Jing 1; Mou, Fusheng 1; Sun, Youwen 2; Li, Suwen 1
刊名	OPTICS EXPRESS
	2021-08-16
卷号	29
ISSN号	1094-4087
DOI	10.1364/OE.431548
通讯作者	Sun, Youwen(ywsun@aiofm.ac.cn)
英文摘要	Photoacoustic (PA) spectroscopic technique has become a popular tool for trace gas detection and is especially suitable for in situ measurement of sulfur hexafluoride (SF6) decomposition components in gas insulated switchgear (GIS). However, the concentrations of SF6 decomposition components are generally very low and the resulting PA signals are too weak to be accurately retrieved with traditional methods. In this study, we proposed a Lyapunov exponent based chaotic oscillator algorithm to retrieve the weak PA signals of SF6 decomposition components. Retrieval of weak PA signals from strong noise background was achieved for both simulation and measurement perspectives. The results were compared with those based on phase-locked amplification technique. Both simulation and measurement results concluded that the proposed chaotic oscillator algorithm is superior to the phase-locked amplification in terms of accuracy, sensitivity and stability. Since most trace gases have weak absorption signatures in the atmosphere (below 1%), this study can provide valuable insights in dealt with such weak signals in remote sensing of atmosphere. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
资助项目	Sino-German Mobility programme[M-0036] ; National Key Research and Development Program of China[2019YFC0214802] ; National Natural Science Foundation of China[41705012] ; National Natural Science Foundation of China[41875040] ; Natural Science Research Project for Colleges and Universities of Anhui Province[KJ2020A0029]
WOS关键词	EXPONENTS
WOS研究方向	Optics
语种	英语
出版者	OPTICAL SOC AMER
WOS记录号	WOS:000683895800019
资助机构	Sino-German Mobility programme ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; Natural Science Research Project for Colleges and Universities of Anhui Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/124305]
专题	中国科学院合肥物质科学研究院
通讯作者	Sun, Youwen
作者单位	1.Huaibei Normal Univ, Dept Phys & Elect Informat, Huaibei 235000, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei Inst Phys Sci, Key Lab Environm Opt & Technol, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Luo, Jing,Mou, Fusheng,Sun, Youwen,et al. Retrieval of weak non-resonant photoacoustic signal with the chaotic oscillator algorithm[J]. OPTICS EXPRESS,2021,29.
APA	Luo, Jing,Mou, Fusheng,Sun, Youwen,&Li, Suwen.(2021).Retrieval of weak non-resonant photoacoustic signal with the chaotic oscillator algorithm.OPTICS EXPRESS,29.
MLA	Luo, Jing,et al."Retrieval of weak non-resonant photoacoustic signal with the chaotic oscillator algorithm".OPTICS EXPRESS 29(2021).