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山西“十五”测震台网子台环境地噪声分析
引用本文:张玲,薛振岳,高跃雄.山西“十五”测震台网子台环境地噪声分析[J].地震地磁观测与研究,2012,33(5):225-230.
作者姓名:张玲  薛振岳  高跃雄
作者单位:中国太原030021,山西省地震局;中国山西030025,太原大陆裂谷动力学国家野外科学观测研究站
摘    要:通过对山西“十五”测震台网正式运行的32个子台的环境地噪声分析计算,得到各子台的背景噪声地脉动速度均方根(RMS值)、观测动态范围、噪声信号功率谱。结果表明,各子台环境地噪声水平基本符合数字地震观测技术规范要求,根据2008-2011年的变化动态,各子台环境地噪声水平有增大趋势。

关 键 词:“十五”测震台网  环境地噪声  噪声功率谱  动态范围

Analysis on environment ground noise of substations of "the tenth five-year plan" Seismic Network of Shanxi
Zhang Ling , Xue Zhenyue , Gao Yuexiong.Analysis on environment ground noise of substations of "the tenth five-year plan" Seismic Network of Shanxi[J].Seismological and Geomagnetic Observation and Research,2012,33(5):225-230.
Authors:Zhang Ling  Xue Zhenyue  Gao Yuexiong
Institution:1) Earthquake Administration of Shanxi Province, Taiyuan 030021, China ;2) National Continental Rift Valley Dynamics Observatory of Taiyuan, Shanxi Province 030025, China)
Abstract:Through the analysis and calculation on environment ground noises of the 32 substations of seismic network of Shanxi,formally running in "the tenth five-year plan", root-mean-square of ground motion noise (RMS), observation dynamic range and noise signal power spectrum of background noise of each substation are gained. The result indicates that environment ground noise level of each substation accord with the requirement for digital seismic observation technology criterion. But it should be noted from the dynamic variation from 2008 to 2011 that the environment ground noise level of each substation has the trend of gradual increasing.
Keywords:the tenth five-year plan seismic network  environmental noise  noise power spectrum  dynamic range
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