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Solution and simulation algorithm of microseismic events location to three-dimensional model by comprehensive location method based on Matlab

机译:基于Matlab的综合定位方法对三维模型微震事件定位的求解和仿真算法

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摘要

The essential for microseismic monitoring is fast and accurate calculation of seismic wave source location.The precision of most traditional microseismic monitoring processes of mines,using TDOA location method in two-dimensional space to position the microseismic events,as well as the accuracy of positioning microseismic events,may be reduced by the two-dimensional model and simple method,and ill-conditioned equations produced by TDOA location method will increase the positioning error.This article,based on inversion theory,studies the mathematical model of TDOA location method,polarization analysis location method,and comprehensive difference location method of adding angle factor in the traditional TDOA location method.The feasibility of three methods is verified by numerical simulation and analysis of the positioning error of them.The results show that the comprehensive location method of adding angle difference has strong positioning stability and high positioning accuracy,and it may reduce the impact effectively about ill-conditioned equations to positioning results.Comprehensive location method with the data of actual measure may get better positioning results.
机译:微地震监测的关键是快速,准确地计算地震波源位置。大多数传统的矿山微地震监测过程的精度,在二维空间中使用TDOA定位方法来定位微地震事件,以及定位微地震的准确性可以通过二维模型和简单方法来减少事件,而TDOA定位方法产生的病态方程会增加定位误差。本文基于反演理论,研究TDOA定位方法的数学模型,极化分析定位方法,以及传统的TDOA定位方法中增加角度因子的综合差值定位方法。通过数值模拟和对三种方法的定位误差进行分析,验证了这三种方法的可行性。定位稳定性强,定位精度高,综合定位法与实测数据可以得到较好的定位结果。

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  • 来源
    《煤炭学报:英文版》 |2012年第003期|254-257|共4页
  • 作者单位

    Safety Evaluation Center, China Academy of Engineering Physics, Mianyang 621900, China;

    Institute of Environmental Protection Engineering, China Academy of Engineering Physics, Mianyang 621900, China;

    School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China;

    Safety Evaluation Center, China Academy of Engineering Physics, Mianyang 621900, China;

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  • 入库时间 2022-08-18 14:19:07
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