{"title":"Microwave Imaging of Reinforced Concrete and Design of a Broadband Antenna","authors":"Shengxiang Qi, Hui Xu, J. Ren","doi":"10.1145/3177404.3177424","DOIUrl":null,"url":null,"abstract":"The location imaging of reinforced concrete in building structure is studied. An imaging system for detecting concrete cross sections with ultra-wideband stepping frequency conversion radar is designed. According to the requirement of imaging system, a wideband double ridged horn antenna is used as the sensor of the imaging system by using electromagnetic simulation software HFSS and the average of voltage standing-wave ratio (VSWR) is less than 2.5. The transmitted signal is changed in step frequency, and the echo signals of different groups at different positions are collected. The internal structure of concrete is reconstructed by using the ω-k algorithm in the synthetic aperture microwave imaging method. A diameter of 1cm of steel in the concrete at different depth is reconstructed successfully by using this imaging system.","PeriodicalId":133378,"journal":{"name":"Proceedings of the International Conference on Video and Image Processing","volume":"34 2 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the International Conference on Video and Image Processing","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/3177404.3177424","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
The location imaging of reinforced concrete in building structure is studied. An imaging system for detecting concrete cross sections with ultra-wideband stepping frequency conversion radar is designed. According to the requirement of imaging system, a wideband double ridged horn antenna is used as the sensor of the imaging system by using electromagnetic simulation software HFSS and the average of voltage standing-wave ratio (VSWR) is less than 2.5. The transmitted signal is changed in step frequency, and the echo signals of different groups at different positions are collected. The internal structure of concrete is reconstructed by using the ω-k algorithm in the synthetic aperture microwave imaging method. A diameter of 1cm of steel in the concrete at different depth is reconstructed successfully by using this imaging system.
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