地震记录的时域反褶积与模拟及其在地震仪方位角相对测量中的应用

IF 1.6 4区 地球科学 Q3 GEOCHEMISTRY & GEOPHYSICS
Xie Jian-bo
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引用次数: 0

摘要

本文利用脉冲不变性原理,从速度平响应地震仪的二阶传递函数设计递归滤波器。与双线性变换设计的滤波器相比,该滤波器包含的系数更少,使用更方便。利用该递归滤波器进行了反卷积和数值模拟实验。一个短周期记录也被模拟成一个真实的宽带地震记录。模拟结果与实际系统记录吻合较好。利用互相关分析方法对地震仪进行了相对方位角测量,并进行了数值模拟。结果比没有模拟的结果更接近寻北者的绝对测量值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Deconvolution and Simulation of Seismic Records in the Time Domain and Application to the Relative Measurements of Seismometer Azimuths
This paper presents a recursive filter designed from the second order transfer function of a velocity-flat-response seismometer by impulse invariance. This filter includes less coefficients than that designed by bilinear transformation and its usage is more convenient. Numeric experiments using this recursive filter have been done for deconvolution and simulation. A short period record was also simulated for a real broadband record of an earthquake. All the simulated results are well consistent with real system records. Some relative azimuth measurements of seismometers with the cross correlation analysis method have been conducted with the aids of simulation. The results are closer to absolute measurements by the north finder than that without simulation.
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来源期刊
地球物理学报
地球物理学报 地学-地球化学与地球物理
CiteScore
3.40
自引率
28.60%
发文量
9449
审稿时长
7.5 months
期刊介绍:
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