| 库尔勒数字地震台台基噪声分析 |
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| 引用本文： | 张文来,郑黎明.库尔勒数字地震台台基噪声分析[J].内陆地震,2003,17(4):343-347. |
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| 作者姓名： | 张文来 郑黎明 |
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| 作者单位： | 1. 新疆维吾尔自治区地震局库尔勒地震台,新疆,库尔勒,841000
2. 新疆维吾尔自治区地震局监测预报处,新疆,乌鲁木齐,830011 |
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| 摘 要： | 选取库尔勒地震台FBS—3数字地震仪不同时段的无震记录资料，运用傅里叶变换对其台基噪声进行频谱分析，并计算台基的平均噪声水平及仪器的实际动态范围。库尔勒地震台数字地震仪台基噪声主要来自随机干扰，噪声频段相对稳定，噪声幅度随时段有所变化。观测系统实际动态范围符合数字地震仪架设的要求。
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| 关 键 词： | 数字化地震台 功率谱 噪声谱 动态范围 |
| 文章编号： | 1001-8956(2003)04-0343-05 |
| 修稿时间： | 2003年2月17日 |
NOISE ANALYSIS OF DIGITAL SEISMOSTATION BASE IN KUERLE |
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| ZHANG Wen-lai,ZHENG Li-ming.NOISE ANALYSIS OF DIGITAL SEISMOSTATION BASE IN KUERLE[J].Inland Earthquake,2003,17(4):343-347. |
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| Authors: | ZHANG Wen-lai ZHENG Li-ming |
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| Abstract: | By selecting different time data of not recording earthquakes using digital seismograph FBS-3 in Kuerle seismostation, we analysed frequency spectrum of noise of its seis-mostation base by Fourier transformations, and calculated its mean noise level and the actual dynamic range of seismograph. Base noise of digital seismograph in Kuerle seismostation mainly came from some random disturbances. The frequency bands of its noise are relatively stable. And the amplitude of its noise varied in different time. The actual dynamic range of the observation system can meet the requirement of installing digital seismograph. |
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| Keywords: | The digital seismostation The power spectrum The noise spectrum The dynamic range |
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