Analytic Modeling of Distributed Acoustic Sensing Signals: Matlab Codes for DAS Wavelets and Attenuation

<p>The site archives a number of codes written in Matlab to calculate the DAS strain and strain rate responses accounting for a straight, perfectly coupled fiber.  The codes consider separately P and SV wave responses as functions of the material velocity, the DAS gage length, the input wavelet and the plane wave angle of incidence.  The effects of material attenuation on the DAS response over a single gage is included only for the case of a P-wave propagating parallel to the fiber.   The complete set of codes as well as associated convenient scripts to run them is contained in the zipped file DAS_Matlab.zip.  The document READ ME.docx contains a detailed listing of the included programs as well as information on operating them.</p>

<p>These programs are associated with the manuscript 'Tutorial: Distributed Acoustic Sensing (DAS) Wavelets: Effects of Phase, Attenuation, and Geometry' submitted to Geophysics,  September 2023.</p>

<p>Additional numerical codes associated with this paper may be found in the related repository PURR repository 'geophone to DAS converter' ( <strong>Zhang, O.; Schmitt, </strong>D. R. (2023). <em>A Python tool converting geophone to DAS response </em>[software]. Purdue University Research Repository. doi:10.4231/ZD3Q-RV18, 2023)</p>

搜集汇总

背景与挑战

背景概述

该数据集包含用于计算分布式声学传感（DAS）信号的Matlab代码，主要分析应变和应变率响应，特别关注P波和SV波的影响以及材料衰减效应。这些代码与一篇关于DAS波形的教程论文相关，适用于地球物理和地震行为研究。