基于两道互相关模型的地震计自噪声测试分析
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摘要
基于经典的两道互相关分析方法,采用Matlab软件编写加窗平均周期图法的地震计自噪声计算程序,在天津市蓟县地震台、北京市延庆县西拨子地震台对两台相同地震计进行自噪声观测实验。对比两个台站的地震计自噪声功率谱值结果,发现进行合理防护有助于得到真实的地震计自噪声功率谱值。
In this paper, a seismometer self-noise program with method of windowing average periodogram was made based on Matlab program and two cross correlation model. Two seismic monitoring systems were set to observe seismometer′s self-noise in Jixian Seismic Station, Tianjin and in Xibozi Seismic Station, Beijing. Compared the self-noise results of the two seismic stations, we can get one true seismometer′s self-noise spectrum with one suitable protective cover on the seismometers.
引文
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    刘洋君,薛兵,朱小毅,林湛.地震计自噪声的研究[J].地震,2010,30(1):138-146.
    郑重,徐智强.海拉尔兰州核查地震台阵的勘址和地动噪声功率谱的计算[J].地震地磁观测与研究,2000,21(6):11-18.
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