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http://dx.doi.org/10.5000/EESK.2002.6.1.013

Radar Imaging of Concrete Specimens with Improved Resolution Using Expanded Frequency Bandwidth  

임홍철 (연세대학교 건축공학과)
이주희 (연세대학교 건축공학과, 석사)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.6, no.1, 2002 , pp. 13-21 More about this Journal
Abstract
Frequency bandwidth has been combined to determine adequate frequency bandwidth which is necessary for nondestructive testing when using inverse synthetic aperture radar(ISAR). For imaging inside of concrete specimens using radar, the principles of radar and signal processing are discussed. Experimental data obtained from radar measurement of three different concrete specimens at two different frequency bandwidths of 2∼3.4 GHz, 3.4∼5.8 GHz and these two frequencies are combined to obtain improved imagery. A signal processing scheme has been implemented to visualize inside concrete specimens. The influence of frequency bandwidth was analyzed in nondestructive testing by changing frequency bandwidth for concrete specimen.
Keywords
frequency bandwidth; concrete; radar; imaging;
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Times Cited By KSCI : 1  (Citation Analysis)
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