Seismic modelling of tracked-vehicle signals for monitoring and verifi cation

作     者：Mathias Pilch Jürgen Altmann Mathias Pilch;Jürgen Altmann

作者机构：Experimentelle PhyskⅢTU Dortmund University44221 DortmundGermany 

出 版 物：《Applied Geophysics》 (应用地球物理（英文版）)

年 卷 期：2021年第18卷第2期

页      面：252-263,274页

核心收录：

学科分类：08[工学] 0826[工学-兵器科学与技术] 

主　　题：Seismic modelling seismic classification tracked vehicles monitoring verifi cation 

摘      要：To better understand characteristics of seismic signals of tracked vehicles measured when passing a sensor line,we numerically modelled force-pulse responses of a layered soil that is similar in its seismic properties to that found at the original measurement *** vertical-force pulses from the road wheels rolling over the track elements are fitted to the measured ***-pulse seismic waves vary with distance due to diff erent wave types,refl ections at layer boundaries,vehicle velocity and relative position of the left and right track *** are computed by a modelling program and superposed at sensor positions with the appropriate slant distance and time shift for each track *** sum signals are in qualitative agreement with those from the original ***,they are several magnitudes weaker and much ***,higher frequencies are damped much less at larger *** to the large variability of the sum signals,recognition of tracked-vehicle types exclusively through their seismic signals seems diffi cult.