| 光谱学与光谱分析 |
|
|
|
|
|
| Baseline Correction Method for Spectrum Signal of SF6 Insulating Air with Optimum Wavelet Basis |
| LIU Yan1, 2, LIU Kai1, TAO Wei-liang2, WANG Xian-pei2 |
1. State Grid Electric Power Research Institute, Wuhan 430074, China
2. College of Electron Information, Wuhan University, Wuhan 430079, China |
|
|
|
|
Abstract SF6 gas has been widely used in the power equipments as an excellent electric insulating and arc-quenching medium. In the present paper, a baseline correction method based on the optimum wavelet basis for spectrum detection is proposed to measure the composition content of the SF6 insulating gas to secure the power safety. In this method, the optimum wavelet basis is selected in the wavelet packet according to constructor function on the energy concentration criterion to express the spectrum signal in the time-frequency domain. Then the strong spectrum composition is removed from the spectrum signal with the threshold method to eliminate the interference with the continuous spectrum fitting. Finally we remove the continuous spectrum which is fitting result from the origin spectrum and obtain the useful signal of line spectrum. The intensities of spectral line processed with the proposed algorithm could reflect the concentration of the conponents to be measured in SF6 gas. Experiments to analyze the absorption spectrum of the SF6 insulating gas mixture show that the proposed algorithm can estimate and correct the drifting baseline accurately, and its performance is better than the algorithm based on iterative wavelet.
|
|
Received: 2009-08-08
Accepted: 2009-11-12
|
|
|
|
Corresponding Authors:
LIU Yan
E-mail: liuyan@sgepri.sgcc.com.cn
|
|
[1] LIU You-wei, WU Li-yuan, GONG Yan-peng(刘有为，吴立远，弓艳朋). Power System Technology(电网技术), 2009, 33(05): 58.
[2] ZHANG Xiao-xing, YAO Yao, TANG Ju, et al(张晓星，姚 尧，唐 炬, 等). High Voltage Engineering(高电压技术), 2008, 34(04): 664.
[3] XU Yuan-zhe, LIU Xian, HU Zhi-hui, et al(徐元哲，刘 县，胡智慧, 等). High Voltage Engineering(高电压技术), 2009, 35(02): 250.
[4] Tai H, Yamamoto K, Uchida M, et al. Photonics Technology Letters, IEEE. 1992, 4(7): 804.
[5] Weldon V, O’Gorman J, Phelan P, et al. Sensors and Actuators B: Chemical Proceedings of the 2nd European Conference on Optical Chemical Sensors and Biosensors. 1995, 29: 101.
[6] YE Xian-feng, TANG Wei-zhong(叶险峰，汤伟中). Semiconductor Optoelectronics(半导体光电), 2000, 21(03): 218.
[7] WANG Yi-ding, ZHONG Hong-jie, JIN Qin-han, et al(王一丁，钟宏杰，金钦汉, 等). Acta Scientiarum Naturalium Universitatis Jilinensis(吉林大学自然科学学报), 2001, (4): 69.
[8] TAO Wei-liang, WANG Xian-pei, LIU Yan, et al(陶维亮，王先培，刘 艳, 等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2009, 29(05): 1241.
[9] Hussam A, Alauddin M, Khan A H, et al. Journal of Environmental Science and Health, Part A, 2002, 37(7): 1223.
[10] Maleki M R, Mouazen A M, Ramon H, et al. Biosystems Engineering, 2007, 96(3): 427.
[11] Acharya T, Chakrabarti C. The Journal of VLSI Signal Processing, 2006, 42(3): 321.
[12] LUO A-li, ZHAO Yong-heng(罗阿理，赵永恒). Acta Astrophysica Sinica(天体物理学报), 2000, 20(04): 427.
[13] Starck J L, Siebenmorgen R, Gredel R. The Astrophysical Journal, 1997, 482(2): 1011.
[14] PENG Yu-hua(彭玉华). Wavelet Transform and Application in Engineering(小波变换及其在工程中的应用). Beijing: Science Press(北京: 科学出版社), 2002. 137.
[15] ZHAO Xue-zhi, CHEN Tong-jian, PENG Yong-hong, et al(赵学智, 陈统坚, 彭永红, 等). Signal Processing(信号处理), 2002, 18(06): 543.
|
| [1] |
ZHOU Cai-hua, DING Xiao. DFT Calculation of Absorption Spectra for Planar Porphyrin Derivatives[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1769-1773. |
| [2] |
MA Ping1, 2, Andy Hsitien Shen1*, ZHONG Yuan1, LUO Heng1. Study on UV-Vis Absorption Spectra of Jadeite From Different Origins[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1827-1831. |
| [3] |
LIU Yan-de, WANG Shun. Research on Non-Destructive Testing of Navel Orange Shelf Life Imaging Based on Hyperspectral Image and Spectrum Fusion[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1792-1797. |
| [4] |
LI Shu-jie1, LIU Jie1, DENG Zi-ang1, OU Quan-hong1, SHI You-ming2, LIU Gang1*. Study of Germinated Rice Seeds by FTIR Spectroscopy Combined With Curve Fitting[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1832-1840. |
| [5] |
ZHANG Yan-ru1, 2, SHAO Peng-shuai1*. Study on the Effects of Planting Years of Vegetable Greenhouse on the
Cucumber Qualties Using Mid-IR Spectroscopoy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1816-1821. |
| [6] |
CAO Yao-yao1, 2, 4, LI Xia1, BAI Jun-peng2, 4, XU Wei2, 4, NI Ying3*, DONG Chuang2, 4, ZHONG Hong-li5, LI Bin2, 4*. Study on Qualitative and Quantitative Detection of Pefloxacin and
Fleroxacin Veterinary Drugs Based on THz-TDS Technology[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1798-1803. |
| [7] |
WEI Si-ye1, 2, FAN Xing-cheng3, MAO Han1, 2, CAO Tao4, 5, CHENG Ao3, FAN Xing-jun3*, XIE Yue3. Abundance and Spectral Characteristics of Molecular Weight Separated Dissolved Organic Matter Released From Biochar at Different Pyrolysis Temperatures[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1809-1815. |
| [8] |
WANG Gan-lin1, LIU Qian1, LI Ding-ming1, YANG Su-liang1*, TIAN Guo-xin1, 2*. Quantitative Analysis of NO-3，SO2-4，ClO-4 With Water as Internal Standard by Raman Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1855-1861. |
| [9] |
HUANG Bin, DU Gong-zhi, HOU Hua-yi*, HUANG Wen-juan, CHEN Xiang-bai*. Raman Spectroscopy Study of Reduced Nicotinamide Adenine Dinucleotide[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1679-1683. |
| [10] |
SHI Wen-qiang1, XU Xiu-ying1*, ZHANG Wei1, ZHANG Ping2, SUN Hai-tian1, 3, HU Jun1. Prediction Model of Soil Moisture Content in Northern Cold Region Based on Near-Infrared Spectroscopy[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1704-1710. |
| [11] |
YANG Jin-chuan1, 2, AN Jing-long1, 2, LI Cong3, ZHU Wen-chao3*, HUANG Bang-dou4*, ZHANG Cheng4, 5, SHAO Tao4, 5. Study on Detecting Method of Toxic Agent Containing Phosphorus
(Simulation Agent) by Optical Emission Spectroscopy of
Atmospheric Pressure Low-Temperature Plasma[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1728-1734. |
| [12] |
CHEN Yuan-zhe1, WANG Qiao-hua1, 2*, TIAN Wen-qiang1, XU Bu-yun1, HU Jian-chao1. Nondestructive Determinations of Texture and Quality of Preserved Egg Gel by Hyperspectral Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1985-1992. |
| [13] |
LU Ya-kun1, QIU Bo1*, LUO A-li2, GUO Xiao-yu1, WANG Lin-qian1, CAO Guan-long1, BAI Zhong-rui2, CHEN Jian-jun2. Classification of 2D Stellar Spectra Based on FFCNN[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1881-1885. |
| [14] |
ZHANG Jie1, 2, XU Bo1, FENG Hai-kuan1, JING Xia2, WANG Jiao-jiao1, MING Shi-kang1, FU You-qiang3, SONG Xiao-yu1*. Monitoring Nitrogen Nutrition and Grain Protein Content of Rice Based on Ensemble Learning[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1956-1964. |
| [15] |
WANG Yue1, 3, 4, CHEN Nan1, 2, 3, 4, WANG Bo-yu1, 5, LIU Tao1, 3, 4*, XIA Yang1, 2, 3, 4*. Fourier Transform Near-Infrared Spectral System Based on Laser-Driven Plasma Light Source[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(06): 1666-1673. |
|
|
|
|
