Retrieval of weak non-resonant photoacoustic signal with the chaotic oscillator algorithm
文献类型：期刊论文
| 作者 | Luo, Jing1; Mou, Fusheng1 ; Sun, Youwen2; Li, Suwen1
|
| 刊名 | OPTICS EXPRESS
 |
| 出版日期 | 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 |
| WOS关键词 | EXPONENTS |
| 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研究方向 | Optics |
| 语种 | 英语 |
| WOS记录号 | WOS:000683895800019 |
| 出版者 | OPTICAL SOC AMER |
| 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 |
| 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). |
入库方式： OAI收割
来源：合肥物质科学研究院
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