Underground Imaging by Sub-Terahertz Radiation

Electronics

Calvin Domier¹  Michelle Gonzalez¹  Yuan Zheng¹  Neville C. Luhmann¹  Diana Gamzina² 

[1] Department of Electrical and Computer Engineering, University of California, Davis, CA 95616, USA;The Technology Innovation Directorate, SLAC National Acceleration Laboratory, Menlo Park, CA 94025, USA;

关键词: GPR;    landmine detection;    millimeter wave imaging;   

DOI  :  10.3390/electronics10212694

来源: DOAJ

【 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.

【 授权许可】

Unknown