• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Increasing Seismic Safety by Combining Engineering Technologies and Seismological Data >Chapter 1.2 Are Transients Carrying Useful Information for Estimating H/V Spectral Ratios?
【24h】

Chapter 1.2 Are Transients Carrying Useful Information for Estimating H/V Spectral Ratios?

机译：第1.2章瞬态是否携带有用的信息来估计H / V频谱比？

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Defining a procedure to calculate the H/V spectral ratio of seismic noise has recently been the focus of several studies. Although some issues have been addressed and a general procedure to follow in choosing the optimal seismological equipment, carrying out the measurements and analyzing the data has been agreed upon by the majority of specialists in this field, some points still remain open. One open question is whether transients should be avoided when H/V spectral ratios are calculated. Starting from contradictory results of previous papers, an ad-hoc experiment at the Nauen test site (Germany) was conducted to verify the influence of transients on the H/V spectral ratio of seismic noise. We show, consistent with some previous studies, that transients generated by high frequency content sources can amplify spectral ratio peaks at low frequencies. After careful polarization analysis of the data and estimation of the spectral amplitude decay with distance, we provide an explanation in terms of the composition of the wavefield over certain distance ranges. Our results highlight the importance of a better understanding of the wave-field composition for better exploiting the potential of H/V spectral ratio method.
机译：定义计算地震噪声的H / V频谱比的程序是最近几项研究的重点。尽管已经解决了一些问题，并且该领域的大多数专家已经同意选择最佳地震设备，执行测量和分析数据的通用程序，但仍有一些问题尚待解决。一个未解决的问题是，在计算H / V频谱比时是否应避免瞬变。从先前论文的矛盾结果开始，在Nauen测试地点（德国）进行了一项临时实验，以验证瞬变对地震噪声的H / V频谱比的影响。与以前的一些研究一致，我们表明，高频含量源产生的瞬变可以放大低频处的频谱比峰值。在对数据进行仔细的极化分析并估计随距离变化的频谱幅度衰减之后，我们就一定距离范围内的波场组成进行了解释。我们的结果强调了更好地了解波场组成的重要性，以便更好地利用H / V谱比方法的潜力。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号