Time Delay Correction of SPAC Method for Array Records of Microtremors

李清河; 何海兵; 范小平; 许汉刚; 金淑梅

doi:10.13409/j.cnki.jdpme.2011.03.018

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Time Delay Correction of SPAC Method for Array Records of Microtremors

更新时间：2025-12-11

- Time Delay Correction of SPAC Method for Array Records of Microtremors
- Vol. 31, Issue 3, Pages: 269-274(2011)
- 作者机构：
- 作者简介：
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- DOI：10.13409/j.cnki.jdpme.2011.03.018
  CLC： 631.4
- Published：2011
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[1]李清河,何海兵,范小平,许汉刚,金淑梅.微振动台阵记录中空间自相关法的时间延迟校正[J].防灾减灾工程学报,2011,31(03):269-274.

李清河, 何海兵, 范小平, et al. Time Delay Correction of SPAC Method for Array Records of Microtremors[J]. 2011, 31(3): 269-274.
[1]李清河,何海兵,范小平,许汉刚,金淑梅.微振动台阵记录中空间自相关法的时间延迟校正[J].防灾减灾工程学报,2011,31(03):269-274. DOI： 10.13409/j.cnki.jdpme.2011.03.018.

李清河, 何海兵, 范小平, et al. Time Delay Correction of SPAC Method for Array Records of Microtremors[J]. 2011, 31(3): 269-274. DOI： 10.13409/j.cnki.jdpme.2011.03.018.

摘要

本文给出了微振动台阵的波长与台站对间距离的半理论-半经验关系;根据前人的理论和实验

指出微振动波场存在优势方向

即在有效波长范围内

微振动的各道记录存在相位差;提出了投影到某方位的相位校正公式和校正方法

由此实现空间自相关法的相关函数和相速度曲线的时间延迟校正

通过实例验证了该方法的有效性。

Abstract

The semi-theoretical and semi-experimental relation between wavelength and distance between station pairs for array of microtremors was presented.Based on previous theoretical and experimental results

it is pointed out that the dominant direction exists in microtremors wave field

i.e.there are phase differences among microtremors’ records from each channel in the range of effective wavelength.The phase correction method and expressions for projecting to some direction were presented and the time delay correction of correlation function and phase velocity curves of SPAC method was achieved.A case study shows that the method proposed is effective.

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references

由微振动记录用剥层法研究浅层S波速度结构 [J]. 何海兵,李清河,范小平. 防灾减灾工程学报 . 2010(01)

The correlation of microtremors: empirical limits and relations between results in frequency and time domains [J] . Francisco J.Chávez‐García,MiguelRodríguez. Geophysical Journal International . 2007 (2)

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