地震地磁观测与研究2023，Vol.44Issue(5)：65-73,9.DOI:10.3969/j.issn.1003-3246.2023.05.009
黑龙江省测震台站背景噪声及动态范围分析
Analysis of background noise and dynamic range of seismic stations in Heilongjiang
摘要
Abstract
Based on the calculation and analysis of the background noise of the seismic stations in Heilongjiang,the root mean square values(RMS)of the ground motion velocity of the background noise at the stations,the noise level at the stations,and the effective measurement dynamic range are obtained;the PSD curves with outstanding problems are analyzed.Finally,through the calculation of the power spectral density of each station,the interference situations of the station in different frequency bands are obtained.Analysis shows that the environmental noise level of 29 stations in Heilongjiang Province is Level Ⅰ,the environmental noise level of the Nianzishan Seismic Station is Level Ⅱ(Affected by local mining machinery vibration),and the environmental noise level at the Qitaihe Seismic Station is level Ⅳ.Except for the dynamic range observed by the Qitaihe Seismic Station,which is less than 130 dB,all other stations are greater than 130 dB.关键词
地动速度均方根/背景噪声/动态范围/功率谱密度Key words
root mean square of ground motion velocity/background noise/dynamic range/power spectral density引用本文复制引用
徐建权,孟令升,贾军,李继业,张雁翔,张永刚..黑龙江省测震台站背景噪声及动态范围分析[J].地震地磁观测与研究,2023,44(5):65-73,9.基金项目
黑龙江省地震局深源地震创新团队项目 （）
