| 福建数字地震台网台址背景噪声分析 |
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| 引用本文： | 陈祥熊,陈文明.福建数字地震台网台址背景噪声分析[J].地震地磁观测与研究,1998,19(5):13-22. |
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| 作者姓名： | 陈祥熊 陈文明 |
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| 作者单位： | 福建省地震局 |
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| 摘 要： | 在使用福建区数字地震台网选台过程中，用１２个台址得到的背景噪声数字记录，计算分析了其背景噪声地动速度均方根值（ＲＭＳ），有效测量动态范围、噪声功率谱及功率谱密度。所得结果可作为供评价仪器性能，台址安静程度的参考。对利用仪器所提供的动态范围，根据区域台网周围地震环境和台网记录地震的目的及任务设置适当的增益量程是也是有用的 。
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| 关 键 词： | 数字化地震台网 功率谱 噪声谱 台址 福建 |
Noise spectrum analysis of Fujian digital seismic network |
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| Chen Xiangxiong,Chen Wenming,Jiang Yan and Yuan Dingqiang.Noise spectrum analysis of Fujian digital seismic network[J].Seismological and Geomagnetic Observation and Research,1998,19(5):13-22. |
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| Authors: | Chen Xiangxiong Chen Wenming Jiang Yan and Yuan Dingqiang |
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| Abstract: | In this paper,the average root mean squares( RMS ),the effective measurement dynamic ranges,the power spectra and the power spectrum densities of ground velocity of background noise in 12 seismic stations were calculated and analysed using the digital records obtained during the process of selective station sites of Fujian local digita seismic network.The analysed results could be provided as reference for the performance evaluation of instruments and quiet degree of the station sites.These results are also useful for setting suitable gain level according to the earthquake active environment and the record task of the network,so as to fully utilize the dynamic ranges provided by the specific instrument type. |
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| Keywords: | digital seismic network power spectrum noise spectrum |
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