作者简介:全海燕(1970-),男,云南石屏人,副教授,主要从事信号处理、智能优化研究.E-mail:quanhaiyan@163.com
收稿日期: 2016-06-05
修回日期: 2016-07-20
网络出版日期: 2016-09-20
基金资助
国家自然科学基金项目“提取重力固体潮信号中地球物理信息和地震前兆信息的关键信号处理算法研究”(编号:41364002)资助
版权
The Cyclic Spectrum Analysis of IMFs of EMD and Its Application to Gravity Tide
First author:Quan Haiyan(1970-), male, Shiping County, Yunnan Province, Associate Professor. Research areas include signal processing, intelligent optimization algorithm.E-mail:quanhaiyan@163.com
Corresponding author:Liu Yan(1988-), female, Suzhou City, Anhui Province, Master student. Research areas include signal processing.E-mail:liuyan8785@163.com
Received date: 2016-06-05
Revised date: 2016-07-20
Online published: 2016-09-20
Supported by
Project supported by the National Natural Science Foundation of China“Research of algorithms of extracting both the geophysical information and the seismic precursory information from Gavity Tide” (No.41364002)
Copyright
全海燕 , 刘艳 . EMD模态分量的谱相关分析法及其对重力固体潮信号的解调分析[J]. 地球科学进展, 2016 , 31(9) : 919 -925 . DOI: 10.11867/j.issn.1001-8166.2016.09.0919
IMFs sifted out by EMD are the FM-AM components. In the paper, by the cyclic spectrum analysis, IMFs are demodulated as the two periodic components which are identical to the intrinsic physical concepts. Using the method, the half-day-tide M2, the day-tide O1, and the half-month-tide Mf are extracted from the gravity tide signal, and a conclusion is drawn that the half-day-tide M2 and the day-tide O1 are primary components of gravity tide signal, and the half-month-tide Mf is modulated in the half-day-tide M2 and the day-tide O1.
Key words： EMD; Cyclic spectrum; Demodulation; Gravity tide.
| [1] | Xu Houze.The Tides of the Solid Earth[M].Wuhan: Hubei Science and Technology Press,2010. |
| [1] | 许厚泽.固体地球潮汐[M].武汉:湖北科学技术出版社,2010.] |
| [2] | Cui Yueju, Li Jing,Wang Yanyan,et al.Application of gas remote sensing technique to earthquake monitoring[J]. Advances in Earth Science, 2015,30(12):284-294. |
| [2] | [崔月菊,李静,王燕艳,等.遥感气体探测技术在地震监测中的应用[J].地球科学进展,2015,30(12):284-294.] |
| [3] | Wu Qingchang, Zhou Zhi, Liang Hong,et al.AM-FM model of gravity tide IMF and its non-linear data fitting[J]. Computer Engineering and Applications,2009,45(30):138-142. |
| [3] | [吴庆畅,周挚,梁虹,等. 重力固体潮IMF的AM-FM模型及其非线性拟合[J].计算机工程与应用,2009,45(30): 138-142.] |
| [4] | Zhou Zhi,Shan Xiuming, Zhang Li,et al.The gravity tide of Kunming & Xiaguan based on the HHT[J].Chinese Journal of Geophysics,2008,51(3):836-844. |
| [4] | [周挚,山秀明,张立,等.基于HHT提取昆明、下关重力固体潮的地震前兆信息[J]. 地球物理学报,2008,51(3):836-844.] |
| [5] | Huang N E, Zheng Shen, Long S R, et al.The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis[J]. Proceedings of the Royal Society,1998, 454: 903-995,doi:10.1098/rspa.1998.0193. |
| [6] | Zhao Hua, Huang N E.A study of the characteristics of white noise using the empirical mode decomposition method[J].Proceedings of the Royal Society,2004,460(2 046):1 594-1 611. |
| [7] | Huang N E, Man-Li C Wu, Long S R, et al.A confidence limit for the empirical mode decomposition and Hilbert spectral analysis[J].Proceedings of the Royal Society,2003,459:2 317-2 345,doi:10.1098/rcpa.2003.1123. |
| [8] | Huang N E, Shen Z, Long S R, et al.A new view of nonlinear water waves: The Hilbert spectrum[J].Annual Review of Fluid Mechanics,1993, 31:417-457. |
| [9] | Zhao Jinping, Huang Daji.Mirror extend and circular spline function for empirical mode decomposition Method[J]. Journal of Zhejiang University (Science),2001,2(3): 247-252. |
| [10] | Gardner W A.Statistical Spectral Analysis: A Non-probabilistic Theory[M]. New Jersey: Prentice-Hall, 1987. |
| [11] | Garden W A.Spectral correlation of modulated signals:Part 1-analog modulation[J]. IEEE Transactions on Communication,1987,35(6):584-594. |
| [12] | Garden W A.Exploitation of spectral redundancy in cyclostationary signals[J].IEEE Signal Processing Magazine,1991,8(2):14-36. |
| [13] | Gardner W A.The spectral correlation theory of cyclostaionary time-series[J]. Signal Processing,1986, 11(1): 13-16. |
| [14] | Huang Zhitao.The Processing and Application of Cyclic Stationary Signals[M].Beijing:Science Press,2006:23-26. |
| [14] | [黄知涛. 循环平稳信号处理及应用[M].北京:科学出版社,2006:23-26.] |
| [15] | Gardner W A.Introduction to Random Processing with Applications to Signals and Systems(Second Edition)[M].New York: McGraw-Hill, 1990. |
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