APPLICATION OF PHASE INFORMATION TO SIGNAL DETECTION OF ARTIFICIAL SEISMIC SOURCE
Tang Jie 1) ; Ge Hongkui 2) ; Wang Baoshan 2) ;and Chen Yong 2)
1)College of Geo-Resources and Information,China University of Petroleum,Dongying 2570612)Institute of Earthquake Science, CEA, Beijing 100036
Abstract ]In recent years more and more artificial sources are used to explore underground structures in the regional scale deep exploration.Usually, signals from artificial seismic source have low SNR(signal to noise ratio). Artificial source has a certain degree of repeatability among different shots. On the basis of this character, we use phase crosscorrelation and phase weighted stack which can effectively improve the clarity of the signal to detect weak signal. The study shows that by use of dozens of kilograms of explosives the signal can be detected from the distance of 200 km.
Key words ：
artificial seismic source
phase weighted stack
phase crosscorrelation
waveform crosscorrelation
SNR(signal noise ratio)
Received: 01 January 1900
Corresponding Authors:
Tang Jie
Cite this article:
Tang Jie ,Ge Hongkui ,Wang Baoshan et al. APPLICATION OF PHASE INFORMATION TO SIGNAL DETECTION OF ARTIFICIAL SEISMIC SOURCE[J]. , 2009, 29(3): 74-76.
Tang Jie ,Ge Hongkui ,Wang Baoshan et al. APPLICATION OF PHASE INFORMATION TO SIGNAL DETECTION OF ARTIFICIAL SEISMIC SOURCE[J]. jgg, 2009, 29(3): 74-76.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2009/V29/I3/74
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