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

doi:10.1364/OE.431548

HFCAS OpenIR

	Retrieval of weak non-resonant photoacoustic signal with the chaotic oscillator algorithm
	Luo, Jing 1; Mou, Fusheng1 ; Sun, Youwen2 ; Li, Suwen 1
	2021-08-16
发表期刊	OPTICS EXPRESS
ISSN	1094-4087
通讯作者	Sun, Youwen(ywsun@aiofm.ac.cn)
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
DOI	10.1364/OE.431548
关键词[WOS]	EXPONENTS
收录类别	SCI
语种	英语
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]
项目资助者	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
WOS研究方向	Optics
WOS类目	Optics
WOS记录号	WOS:000683895800019
出版者	OPTICAL SOC AMER
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/124306
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
通讯作者单位	中科院安徽光学精密机械研究所
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).