330 GHz FMCW Image Sensor for Homeland Security Applications
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- 作者：Boris Kapilevich ; Yosef Pinhasi ; Ruth Arusi ; Michael Anisimov ; Danny Hardon ; Boris Litvak and Yan Wool
- 关键词：THz and mm ; wave imaging ; FMCW radar ; Image reconstruction
- 刊名：Journal of Infrared, Millimeter and Terahertz Waves
- 出版年：2010
- 出版时间：November 2010
- 年：2010
- 卷：31
- 期：11
- 页码：1370-1381
- 全文大小：1.1 MB
文摘
A single-pixel imaging remote sensor operating at 330 GHz is described. It is based on a frequency modulated continuous wave (FMCW) and aimed at detection of concealed objects for ranges up to 40 m. The system consists of 2 horn-lens antennas integrated with a homodyne transceiver. The synthesized linear FMCW signal at X-band is multiplied by a factor of 32 to generate the transmitted signal. An intermediate frequency (IF) signal obtained in the output port of the 2-nd harmonic mixer is employed for image processing. Distance measurements were made by performing data acquisition unit based on LabView interface and resulting in a range resolution about 1 cm. Examples of 2D and 3D images reconstructed with this sensor are presented.