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Georadar System Using Network-Analyzer  

Cho Seong-Jun (Geophysical Exploration and Mining Division, Korea Institute of Geoscience and Mineral Resource)
Kim Jung-Ho (Geophysical Exploration and Mining Division, Korea Institute of Geoscience and Mineral Resource)
Lee Seoung Kon (Geophysical Exploration and Mining Division, Korea Institute of Geoscience and Mineral Resource)
Son Jeong-Sul (Geophysical Exploration and Mining Division, Korea Institute of Geoscience and Mineral Resource)
Chung Seung-Hwan (Geophysical Exploration and Mining Division, Korea Institute of Geoscience and Mineral Resource)
Publication Information
Geophysics and Geophysical Exploration / v.5, no.4, 2002 , pp. 272-279 More about this Journal
Abstract
During field survey of ground penetrating radar or borehole radar, we often encounter some problems which could be solved easily by modifying structure of the system such as antenna length, shape or array. In addition, it is necessary that the user could easily modify configuration of the radar system na test various array of antennas in order to verify and confirm numerical modeling results concerning radar antennas. We have developed network-analyzer-based, stepped-frequency georadar system. This system had been comprised with coaxial cable to confirm possibility of the system, then we have upgraded the system to use optical cable that is composed of optical/electric transducers, electric/optical transducers, amp, pre-amp and antennas. The software for the aquisition of data has been developed to control the system automatically using PC with GPIB communication and to display the obtained data graphically. We have tested the system in field survey na the results have been compared with those of RAMAC/GPR system.
Keywords
georadar system; network-analyzer; data aquisition software; optical cable; optical/electric transducer; electric/optical transducer;
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