A NEW METHOD FOR EXTRACTING FEATURE SIGNAL FROM THE EARTH TIDE OBSERVATIONS
Lü Pinji 1,2) ; Zhao Bin 1,2) ; Chen Zhiyao 1,2) ;and Li Zhengyuan 3)
1)Institute of Seismology, CEA, Wuhan 4300712)Crustal Movement Laboratory, Wuhan 4300713)China Earthquake Network Center, Beijing 100045
Abstract The empirical mode decomposition method is applied to data processing of earth tide observations. FFT and Venedikov harmonic analysis are used to verificate the decomposition results. The conclusion is that five feature signals are found from the original signal, they are highfrequency signal, semidiurnal tide, diurnal tide,lowfrequency signal and the trend of the observation data.
Key words ：
Empirical Mode Decomposition(EMD)
earth tide observation
feature signal
frequency domain
harmonic analysis
Received: 01 January 1900
Corresponding Authors:
Lü Pinji
Cite this article:
Lü Pinji,Zhao Bin,Chen Zhiyao et al. A NEW METHOD FOR EXTRACTING FEATURE SIGNAL FROM THE EARTH TIDE OBSERVATIONS[J]. , 2011, 31(2): 76-79.
Lü Pinji,Zhao Bin,Chen Zhiyao et al. A NEW METHOD FOR EXTRACTING FEATURE SIGNAL FROM THE EARTH TIDE OBSERVATIONS[J]. jgg, 2011, 31(2): 76-79.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2011/V31/I2/76
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