地震地磁观测与研究2025，Vol.46Issue(1)：57-63,7.DOI:10.3969/j.issn.1003-3246.2025.01.008
大青山山前断裂带东北部测震台站背景噪声分析
Background noise analysis of the northeastern Daqingshan piedmont fault zone
摘要
Abstract
The seismic observation data of two surface stations and two cave stations in the northeastern part of the Daqingshan piedmont fault zone in January 2022 were selected for background noise calculation and feature analysis.The research results show that,compared with surface observation stations,cave observation has a significant advantage in resisting noise interference caused by human activities,which is especially reflected in the changes in the noise root mean square(RMS)values.The background noise in the high-frequency band mainly comes from human activities,and the noise level is closely related to the distance between the station and the interference source.The construction of stations should be reasonably planned according to the background noise of the stations.The long-period background noise level of the station is mainly affected by natural environmental factors such as temperature.The cave observation can effectively reduce interference and improve the quality of seismic data.关键词
大青山山前断裂带/背景噪声/噪声均方根/功率谱密度Key words
Daqingshan piedmont fault zone/background noise/root mean square noise/power spectrum density引用本文复制引用
包文超,张荣莲,郭雷,甄齐,王西,郭晔..大青山山前断裂带东北部测震台站背景噪声分析[J].地震地磁观测与研究,2025,46(1):57-63,7.基金项目
中国地震局监测、预报、科研三结合课题(项目编号:3JH-202401051) （项目编号:3JH-202401051）
