摘要
本文通过对上海遥测台网各台址背景噪声数字化记录进行计算和分析,得到台址背景噪声地动速度均方根值(RMS)、有效测量动态范围、噪声信号功率谱结果.所得结果对上海市地震局"十二五"期间新建台站的各项指标设计,如台基选择、点位选择、仪器选型等提供非常有价值的理论依据;通过台址噪声分析可以为"十二五"期间主动震源技术发展和应用提供背景资料,即根据当地背景噪音幅度计算主动震源所需最低能量,同时主动震源振动频率尽量避开背景噪音的优势频率段,以获取最佳的观测数据,因此对数字地震台的台址噪声进行分析是一项有意义和重要的工作.
Base on the Shanghai telemetry station network of the station site digital recording of background noise calculation and analysis,the speed of the earth station sites background noise set speed（RMS）,effective measurement dynamic rang,noise power spectrum results.The results of the Shanghai Seismological Bureau,＂ Twelfth-five＂ new stations during the design of the indicators,such as station selection,point selection,equipment selection to provide a valuable theoretical basis;Through noise analysis for station sites ＂ Twelfth-five＂ initiative during the technology development and application source to provide background information that is calculated according to the local background noise margin the minimum energy required for active source,while active frequency source to avoid background noise as much as possible the advantages of frequency bands to obtain the best observational data,so the digital seismic noise analysis of the station sites is a meaningful and important work.
出处
《地球物理学进展》
CSCD
北大核心
2012年第5期1897-1903,共7页
Progress in Geophysics
基金
地震科学联合基金(C08036)
地震科技星火计划项目(XH12017Y)联合资助
关键词
上海
遥测台网
噪声
功率谱
Shanghai
telemetry station network
noise
power spectrum
