Research on Large Volume Airgun Source Signal Reception in Hutubi, Xinjiang Using Seismic Network Data
Research on Large Volume Airgun Source Signal Reception in Hutubi,Xinjiang Using Seismic Network Data作者机构:Earthquake Administration of Xinjiang Uygur Autonomous Region Urumqi 830011 China Lanzhou Institute of Seismology CEA Lanzhou 730000 China
出 版 物:《Earthquake Research in China》 (中国地震研究(英文版))
年 卷 期:2016年第30卷第3期
页 面:326-332页
核心收录:
学科分类:081801[工学-矿产普查与勘探] 081802[工学-地球探测与信息技术] 08[工学] 0818[工学-地质资源与地质工程]
基 金:jointly funded by the Special Fund of Earthquake Industry(201508008) National Natural Science Foundation of China(41474051) Scientific Institution Innovation and Development Fund of Xinjiang Uygur Autonomous Region(201316)
主 题:Large volume airgun Power Spectral Density Noise level Signal recognition
摘 要:We used data from the Xinjiang Digital Seismic Network and PSD( Power Spectral Density) method to perform noise level assessment for six stations. We calculated the median of the power spectral density to evaluate the noise level of different stations. After the comparison of the power spectral density of different stations and the airgun signal recognition,we found that noise level of stations with recognizable airgun source signals is lower than that of stations without recognizable signals. The largest difference of the power spectral density is 40 d B,and the smallest is 15 d B. Finally,we found that the failure to recognize the signal of airgun sources at some stations is due to the noise level.