Underground Imaging by Sub-Terahertz Radiation

被引：0
|
作者：
Zheng, Yuan [1 ]
Domier, Calvin [1 ]
Gonzalez, Michelle [1 ]
Luhmann, Neville C. [1 ]
Gamzina, Diana [2 ]
机构：
[1] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA
[2] SLAC Natl Accelerat Lab, Technol Innovat Directorate, Menlo Pk, CA 94025 USA
来源：
ELECTRONICS | 2021年 / 10卷 / 21期
关键词：
GPR; landmine detection; millimeter wave imaging; MILLIMETER-WAVE;
D O I：
10.3390/electronics10212694
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Sub-terahertz ground-penetrating radar systems offer an alternative to radio wave-based systems in the airborne imaging of buried objects. Laboratory prototype systems operating in W-band (75-110 GHz) and F-band (90-140 GHz) are presented, detecting the distance between target and source and imaging metal objects buried in mixed soil. The experimental results show that imaging in the 100-150 GHz frequency range is feasible for underground applications but significantly restricted by the attenuation characteristics of the medium covering the targets. A higher power source and more sensitive receiving components are essential to increase the penetration capability and expand the application settings of this approach.
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页数：11
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