Interferometric borehole radar system

Kazunori Takahashi, Sixin Liu, Motoyuki Sato

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


We developed an interferometric borehole radar system, which has one transmitter and two receivers. A new analog optical link is equipped in this new borehole radar system. Field experiments were carried out and the system was evaluated. Clear reflections from subsurface fractures were observed. Two radar profiles can be obtained by one measurement. These two radar profiles are acquired by two receivers spacing 1 m apart, therefore these profiles can be used for interferometry. The difference in these profiles is caused only from the different of the wave paths from the radar target. By interferometric interpretation, much detailed information can be obtained from borehole radar compared to the conventional technique. For example, the direct coupling component of the received signal can be used for electromagnetic well logging.

Original languageEnglish
Pages (from-to)19-24
Number of pages6
JournalProceedings of SPIE-The International Society for Optical Engineering
Publication statusPublished - 2002 Jan 1
Externally publishedYes


  • Analog optical link
  • Borehole radar
  • Performance figure
  • Radar interferometry
  • Stepped-frequency radar system
  • Vector network analyzer
  • Well logging

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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