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Application of microwave pulse‐echo radar imaging to the nondestructive evaluation of buildings
Author(s) -
Mast J. E.,
Lee H.,
Murtha J. P.
Publication year - 1992
Publication title -
international journal of imaging systems and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 47
eISSN - 1098-1098
pISSN - 0899-9457
DOI - 10.1002/ima.1850040304
Subject(s) - radar , echo (communications protocol) , nondestructive testing , microwave , girder , acoustics , ground penetrating radar , radar imaging , span (engineering) , geology , masonry , computer science , materials science , remote sensing , structural engineering , engineering , physics , telecommunications , computer network , quantum mechanics
We present a microwave pulse‐echo radar imaging technique and its application to nondestructive evaluation of structural configurations of the New York State Capitol building. The survey procedure consists of scanning surface areas of the building with the radar data acquisition system, imaging with the backward‐propagation method, and forming an image of the investigated region. This technique not only provides depth and other distance measures, but also provides high‐resolution range and azimuthal spatial visualization of the subsurface region. The results demonstrate the capability of the technique for estimating the depth, span, and size of beams, girders, flues, and masonry arches in floors as well as columns in walls. Also, the mechanical stepping and thickness of outer granite facings on the walls, and the presence of wire mesh and reinforcement in concrete, are also discernible.©1993 John Wiley & Sons Inc