A LINE SPECTRUM EXTRACTION METHOD OF SEISMIC-ACOUSTIC SIGNAL

作者：Han, Xue^*; Piao, Sheng chun^*

来源：10th Symposium on Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA), 2015-10-30 To 2015-11-02.

DOI：10.1109/spawda.2015.7364541

• Line spectrum extraction
• Polarization
• Multi-layer autocorrelation

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.

• 出版日期2015
• 单位哈尔滨工程大学