河南数字台网子台台基背景噪声分析  

NOISE ANALYSIS OF BACKGROUND NOISE OF ALL SUBSTATIONS ON DIGITAL SEISMIC NETWORK IN HENAN PROVINCE

作　　者：郑培玲 陈力刚 张亚琳 赵晖 

机构地区：[1]河南省地震局,河南郑州450016

出　　处：《防灾减灾学报》2014年第1期56-59,共4页Journal of Disaster Prevention And Reduction

摘　　要：介绍了河南省数字地震台网基本情况,并对"十五"测震台网的21个子台的环境地噪声进行了计算分析。结果表明,各台站的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2009—2013年台站背景噪声的变化动态来看,各子台的地噪声功率谱密度值普遍增大,而观测动态范围普遍减小。根据了解到的情况分析了动态范围普遍减小的原因。This paper introduces the basic situation about digital seismic network in Henan , and calculates and analyzes the environment ground noise of the 21 substations in Henan running in “the tenth five-year plan” . The result indicates that environment ground noise level of each substation conforms with the requirement for digital seismic observation technology criterion. But according to the dynamic variation from 2009 to 2013, the noise power spectrum of each substation has increased, while the observation dynamic range has gradually decreased.

关 键 词：数字地震台网 功率谱密度 环境地噪声 动态范围 

分 类 号：P315.9[天文地球—地震学]