Title :
Considerations of the blind region for single-borehole bistatic and monostatic pulse radars
Author :
Jae-Hyoung Cho ; Sang-Wook Kim ; Jong-Gwan Yook ; Se-Yun Kim
Author_Institution :
Imaging Media Res. Center, Yonsei Univ., Seoul, South Korea
Abstract :
The blind regions for single-borehole bistatic and monostatic pulse radars are considered in this paper. The blind region of a single-borehole radar may restrict its capability on detecting anomalies adjacent to the antenna. We explain the causes of the blind regions in bistatic and monostatic radars. In bistatic radar, the blind region is caused by direct signal along the borehole. In contrast, the blind region of monostatic radar is complexly generated by direct signal radiated from the circuit, feed reflection and switching noise. And we investigate how much such critical signals decrease using switch time delay. The blind region of a single-borehole pulse radar is measured using practical experiments. And the considerations of the blind region according to the switching time for monostatic radar system are also analyzed. Finally, we demonstrate B-scan data of actual adjacent target with optimum blind region.
Keywords :
ground penetrating radar; noise; anomaly detection; blind region; feed reflection; monostatic pulse radar; monostatic radar system; single-borehole bistatic pulse radar; switch time delay; switching noise; Ground penetrating radar; Radar antennas; Radar detection; Remote sensing; Switches; blind region; borehole radar; monostatic; single-borehole;
Conference_Titel :
Ground Penetrating Radar (GPR), 2012 14th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-2662-9
DOI :
10.1109/ICGPR.2012.6254988