Open AccessRobust cross-correlation functions of high-speed rail system
Author(s) -
Tiezhao Bao,
Jieyuan Ning,
Zhang Xian-bin
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/660/1/012145
Subject(s) - train , stacking , cross correlation , vibration , correlation , computer science , structural engineering , acoustics , physics , engineering , mathematics , mathematical analysis , geometry , geography , nuclear magnetic resonance , cartography
The vibration propagating along the railway direction is extracted by cross-correlation method (CCM). Given two stations both beneath the railway viaduct, robust cross-correlation functions (CCF) can be obtained by stacking those of different trains. The robust CCF can be used as characteristic quantities of the wave field generated by high-speed rail (HSR). These quantities have potential to monitor the structural changes of HSR system.