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Development of high - speed ultrawideband ground - penetrating radar for rebar detection / Xianlei Xu in Journal of engineering mechanics, Vol. 139 N° 3 (Mars 2013) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 139 N° 3 (Mars 2013) . - pp.272–285. Titre : Development of high - speed ultrawideband ground - penetrating radar for rebar detection Type de document : texte imprimé Auteurs : Xianlei Xu, Auteur ; Tian Xia, Auteur ; Anbu Venkatachalam, Auteur Année de publication : 2013 Article en page(s) : pp.272–285. Note générale : Applied mechanics Langues : Anglais (eng) Mots-clés : GPR  system  Rebar  detection  High-speed  real-time  sampling  Air  coupled  Imaging  processing Résumé : This paper describes the development of new air-coupled ultrawideband ground-penetrating radar (GPR) for highway pavement and bridge deck inspections that can achieve high spatial resolution and high inspection performance while operating on vehicles driving at regular highway speeds. The major design features include dual-frequency band operation, 8 gigasamples per second high-speed real-time data acquisition, high-speed large volume data transmission and storage, and customized signal-processing algorithms for GPR image enhancement and feature extractions. For design validations, steel reinforcing bar detection experiments in various setups are conducted. The measurement results show good agreement with the subsurface feature configurations. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29EM.1943-7889.0000458 [article] Development of high - speed ultrawideband ground - penetrating radar for rebar detection [texte imprimé] / Xianlei Xu, Auteur ; Tian Xia, Auteur ; Anbu Venkatachalam, Auteur . - 2013 . - pp.272–285. Applied mechanics Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 139 N° 3 (Mars 2013) . - pp.272–285. Mots-clés : GPR  system  Rebar  detection  High-speed  real-time  sampling  Air  coupled  Imaging  processing Résumé : This paper describes the development of new air-coupled ultrawideband ground-penetrating radar (GPR) for highway pavement and bridge deck inspections that can achieve high spatial resolution and high inspection performance while operating on vehicles driving at regular highway speeds. The major design features include dual-frequency band operation, 8 gigasamples per second high-speed real-time data acquisition, high-speed large volume data transmission and storage, and customized signal-processing algorithms for GPR image enhancement and feature extractions. For design validations, steel reinforcing bar detection experiments in various setups are conducted. The measurement results show good agreement with the subsurface feature configurations. ISSN : 0733-9399 En ligne : http://ascelibrary.org/doi/abs/10.1061/%28ASCE%29EM.1943-7889.0000458