Interferometric borehole radar system

被引：5
|
作者：
Takahashi, K [1 ]
Liu, SX [1 ]
Sato, M [1 ]
机构：
[1] Tohoku Univ, Fac Engn, Grad Sch, Sendai, Miyagi 980, Japan
来源：
GPR 2002: NINTH INTERNATIONAL CONFERENCE ON GROUND PENETRATING RADAR | 2002年 / 4758卷
关键词：
borehole radar; radar interferometry; vector network analyzer; stepped-frequency radar system; analog optical link; performance figure; well logging;
D O I：
10.1117/12.462206
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
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.
引用
收藏
页码：19 / 24
页数：6
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