A Preliminary Evaluation of Active Millimeter-Wave Radiometry at W-Band for Enhancement of Material Contrasts

被引：0

作者：

Tang, A. ^{[1
,2
,3
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA

[2] Univ Calif Los Angeles, Los Angeles, CA 90095 USA

[3] Univ Calif Davis, Davis, CA 95616 USA

来源：

2016 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) | 2016年

关键词：

Radiometer; Passive Imager; Laser; IR;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

this paper introduces active radiometry, an mm-wave imaging technique where thermal excitation is exploited to enhance the contrast attained from radiometric measurements at mm-wave frequencies. By combining an off-the-shelf W-band radiometer with a digitally modulated IR laser source, the attainable contrast between various materials to both transient and continuously modulated thermal excitations is evaluated. Initial laboratory measurements of the active radiometer concept are presented and discussed.

引用

页数：3