- document
-
Guo, Y. (author), Wang, Shilei (author), Jing, Guoqing (author), Yang, Fei (author), Liu, Guixian (author), Qiang, Weile (author), Wang, Yan (author)Ballast layer condition should be more regularly and accurately inspected to ensure safe train operation; however, traditional inspection methods cannot sufficiently fulfil this task. This paper presents a method of ground penetrating radar (GPR) application to reflect ballast layer fouling levels under diverse field conditions (annual gross...journal article 2022
- document
-
Guo, Y. (author), Liu, Guixian (author), Jing, Guoqing (author), Qu, Jianjun (author), Wang, Shilei (author), Qiang, Weile (author)Ground penetrating radar (GPR) has been applied for ballast layer inspection for two decades, mainly for the analysis of ballast layer fouling levels. However, some issues that affect the inspection quality remain unsolved, such as issues involving the GPR equipment quality (antenna) and the correlation between the GPR indicator and fouling...journal article 2022
- document
-
Liu, Guixian (author), Peng, Zhan (author), Jing, Guoqing (author), Wang, Shilei (author), Li, Yaonan (author), Guo, Y. (author)Ground penetrating radar (GPR) is a popular technology for inspecting railway ballast layer, mainly on the ballast fouling level. However, different GPR antennas with different frequencies are suitable for different inspection emphasis and diverse railway lines (weather and sub-structure). In addition, the full-scale track model (with...journal article 2022
- document
-
Wang, J. (author), Aubry, P.J. (author), Yarovoy, Alexander (author)Ground penetrating radar imaging from the data acquired with arbitrarily oriented dipole-like antennas is considered. To take into account variations of antenna orientations resulting in spatial rotation of antenna radiation patterns and polarizations of transmitted fields, the full-wave method that accounts for the near-, intermediate-, and...journal article 2018