SEISMIC SIGNAL DENOISING ALGORITHM BASED ON HHT AND ITS APPLICATION
Yang Guangliang 1,2)
1)Institute of Seismology, CEA,Wuhan 430071;2)Crustal Movement Laboratory,Wuhan 430071
Abstract On the basis of the HilbertHuang Transform(HHT) method and according to the assumption of the background noise signal continuity in time domain, an adaptive algorithm of seismic signal denoising is presented. The algorithm, as used to analyze the seismic wave , has certain positive results.Through the analysis following conclusions can be drawn.1)According to the background noise signal characteristics, the algorithm can effectively remove the lowfrequency noise signal from the original signal. 2)By the use of the adaptive algorithm we can decompose the signal and denoising, and avoid the time resolution and frequency resolution problem. 3)The algorithm has the flaw for dealing with highfrequency interferenc，and so needs to be improved.
Key words ：
EMD(Empirical Mode Decomposition)
IMF(Intrinsic Mode Function)
correlation analysis
characteristics of the time extension
denoising
Received: 01 January 1900
Corresponding Authors:
Yang Guangliang
Cite this article:
Yang Guangliang. SEISMIC SIGNAL DENOISING ALGORITHM BASED ON HHT AND ITS APPLICATION[J]. , 2011, 31(4): 90-93.
Yang Guangliang. SEISMIC SIGNAL DENOISING ALGORITHM BASED ON HHT AND ITS APPLICATION[J]. jgg, 2011, 31(4): 90-93.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2011/V31/I4/90
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