Low power monostatic pulse borehole radar with an active circulator and an absorptive switch

Jae Hyoung Cho, Jong Gwan Yook, Se Yun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

A low power monostatic pulse borehole radar system is designed and tested for detecting a subversive intrusion tunnel with about 2 m diameter. According to our calculated budget under the condition that the transmitting signal is over 1 V peak with 10 ns full width half maximum, its switching speed becomes faster than 100 ns for detecting an air-filled tunnel nearby the employed borehole. To satisfy the above requirement, the monostatic pulse radar is fabricated with an active circulator using operational amplifiers and a switch for guaranteeing isolation and cutting off the direct signal. Then, the system performance is evaluated in a well suited tunnel test site. The measured data illustrate that the monostatic pulse radar provides the parabolic pattern of a typical tunnel signature comparable to that of a conventional bistatic pulse radar.

Original languageEnglish
Title of host publication2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013
Pages570-572
Number of pages3
DOIs
Publication statusPublished - 2013 Dec 1
Event2013 3rd Asia-Pacific Microwave Conference, APMC 2013 - Seoul, Korea, Republic of
Duration: 2013 Nov 52013 Nov 8

Publication series

NameAsia-Pacific Microwave Conference Proceedings, APMC

Other

Other2013 3rd Asia-Pacific Microwave Conference, APMC 2013
CountryKorea, Republic of
CitySeoul
Period13/11/513/11/8

Fingerprint

Boreholes
Tunnels
Radar
Switches
Operational amplifiers
Radar systems
Air

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Cho, J. H., Yook, J. G., & Kim, S. Y. (2013). Low power monostatic pulse borehole radar with an active circulator and an absorptive switch. In 2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013 (pp. 570-572). [6694867] (Asia-Pacific Microwave Conference Proceedings, APMC). https://doi.org/10.1109/APMC.2013.6694867
Cho, Jae Hyoung ; Yook, Jong Gwan ; Kim, Se Yun. / Low power monostatic pulse borehole radar with an active circulator and an absorptive switch. 2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013. 2013. pp. 570-572 (Asia-Pacific Microwave Conference Proceedings, APMC).
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Cho, JH, Yook, JG & Kim, SY 2013, Low power monostatic pulse borehole radar with an active circulator and an absorptive switch. in 2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013., 6694867, Asia-Pacific Microwave Conference Proceedings, APMC, pp. 570-572, 2013 3rd Asia-Pacific Microwave Conference, APMC 2013, Seoul, Korea, Republic of, 13/11/5. https://doi.org/10.1109/APMC.2013.6694867

Low power monostatic pulse borehole radar with an active circulator and an absorptive switch. / Cho, Jae Hyoung; Yook, Jong Gwan; Kim, Se Yun.

2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013. 2013. p. 570-572 6694867 (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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N2 - A low power monostatic pulse borehole radar system is designed and tested for detecting a subversive intrusion tunnel with about 2 m diameter. According to our calculated budget under the condition that the transmitting signal is over 1 V peak with 10 ns full width half maximum, its switching speed becomes faster than 100 ns for detecting an air-filled tunnel nearby the employed borehole. To satisfy the above requirement, the monostatic pulse radar is fabricated with an active circulator using operational amplifiers and a switch for guaranteeing isolation and cutting off the direct signal. Then, the system performance is evaluated in a well suited tunnel test site. The measured data illustrate that the monostatic pulse radar provides the parabolic pattern of a typical tunnel signature comparable to that of a conventional bistatic pulse radar.

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Cho JH, Yook JG, Kim SY. Low power monostatic pulse borehole radar with an active circulator and an absorptive switch. In 2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013. 2013. p. 570-572. 6694867. (Asia-Pacific Microwave Conference Proceedings, APMC). https://doi.org/10.1109/APMC.2013.6694867