GPR data processing framework for detecting subsurface utilities
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کد مقاله : 2121-NIGS
نویسندگان
1موسسه ژئوفیزیک دانشگاه تهران
2رئیس بخش پژوهشی موسسه ژئوفیزیک دانشگاه تهران
3پژوهشگر
4Department of Computer Science and Information Technology, La Trobe University, Melbourne, Australia,
5Engineering and Built Environment, Deakin University, Geelong, VIC 3216, Australia,
چکیده
Ground-penetrating radar (GPR) is a non-destructive instrument that can be used to help find subterranean utilities that are close to the surface. This study uses innovative, integrated radar data processing CTR (compensated time reversal) and analytical methodologies to enhance GPR-based detection of subsurface buried pipelines and other utilities in urban utilities networks. The suggested solution incorporates an analytical approach that takes into account the utility network configuration as well as a CTR strategy for denoising features that are frequently observed on radargrams acquired over subsurface utilities. Finally, the collected results enable the interpreters to recognize the underground utilities with great reliability. We successfully validated the general methodology through a practical tested using GPR MALA, antenna central frequency of 250 MHz, along 4 parallel traverses in a place that comprises buried utilities like pipes, cables, and etc. This integrated analytical approach appears to be promising to aid detecting and monitoring subsurface utilities.
کلیدواژه ها
Keywords: Detecting underground utilities؛ CTR (compensated time reversal)؛ Ground-penetrating radar (GPR)؛ subsurface imaging؛ Wavelet transform
Title
GPR data processing framework for detecting subsurface utilities
Authors
Sajjad Ghanbari, Mohammad Kazem Hafizi, maksim Bano, Ala Ebrahimi, naser hosseinzadeh
Abstract
Ground-penetrating radar (GPR) is a non-destructive instrument that can be used to help find subterranean utilities that are close to the surface. This study uses innovative, integrated radar data processing CTR (compensated time reversal) and analytical methodologies to enhance GPR-based detection of subsurface buried pipelines and other utilities in urban utilities networks. The suggested solution incorporates an analytical approach that takes into account the utility network configuration as well as a CTR strategy for denoising features that are frequently observed on radargrams acquired over subsurface utilities. Finally, the collected results enable the interpreters to recognize the underground utilities with great reliability. We successfully validated the general methodology through a practical tested using GPR MALA, antenna central frequency of 250 MHz, along 4 parallel traverses in a place that comprises buried utilities like pipes, cables, and etc. This integrated analytical approach appears to be promising to aid detecting and monitoring subsurface utilities.
Keywords
Keywords: Detecting underground utilities, CTR (compensated time reversal), Ground-penetrating radar (GPR), subsurface imaging, Wavelet transform