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3D Image Reconstruction of Reinforcing Barand Pipeusing Handy Microwave Radar Scanning System
Jun-ya Takayama,Tsubasa Yoshinaga,Akira Hayakawa,Shinji Ohyama 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
In this report, an advanced signal processing method for microwave radar is considered to recon struct a precise 3D image for inner construction in concrete structursC which consists of reinforcing bars and pipes. An antenna positioning error and an in appropriate signal processing method have caused adegradation of reconstructed images. First, a handy antenna scanning system has been modified, which enables real-time self-position measurement. Concretely, a wheel up lift phenomenonis restrained by stabilizing a compress force to atarget surface, and positioning accuracy can be improved. On the image reconstruction result, a super position of observed data can not operate well in a regions and wiched by two scanned trajectories. Then, apipe-shape model is newly introduced, and the 3D object’s images have been reconstructed assuming that a continuity of buried object based on it. As a result, buried object’s properties can be evaluated more precisely. An effectiveness of aproposed method has been confirmed experimentally, by applying it to a concrete test specimen and an actual wall.