DocumentCode :
3717695
Title :
A line spectrum extraction method of seismic-acoustic signal
Author :
Xue Han;Sheng-chun Piao
Author_Institution :
Department of Underwater Acoustic Engineering, Harbin Engineering University, 150001, China
fYear :
2015
Firstpage :
506
Lastpage :
510
Abstract :
This paper puts forward a line spectrum extraction method of seismic-acoustic signal. The method is based on the difference in the polarization characteristics between signal and noise. The data of two horizontal channels are analyzed and the frequency domain polarization parameters are extracted by using singular value decomposition (SVD) method. The resolution of the polarization to frequency is improved by using multi-layer autocorrelation. Experimental results show that the polarization method can extract line spectrum adaptively, and the method based on multi-layer autocorrelation has a good line spectrum extraction performance. The signal to noise ratio (SNR) of the spectrum has been greatly improved.
Keywords :
"Correlation","Frequency-domain analysis","Trajectory","Signal to noise ratio","Time-domain analysis","Piezoelectricity","Acoustic waves"
Publisher :
ieee
Conference_Titel :
Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA), 2015 Symposium on
Type :
conf
DOI :
10.1109/SPAWDA.2015.7364541
Filename :
7364541
Link To Document :
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