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Proceedings Paper

Large distance 3D imaging of hidden objects
Author(s): Daniel Rozban; Avihai Aharon Akram; N. S. Kopeika; A. Abramovich; Assaf Levanon
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Paper Abstract

Imaging systems in millimeter waves are required for applications in medicine, communications, homeland security, and space technology. This is because there is no known ionization hazard for biological tissue, and atmospheric attenuation in this range of the spectrum is low compared to that of infrared and optical rays. The lack of an inexpensive room temperature detector makes it difficult to give a suitable real time implement for the above applications. A 3D MMW imaging system based on chirp radar was studied previously using a scanning imaging system of a single detector. The system presented here proposes to employ a chirp radar method with Glow Discharge Detector (GDD) Focal Plane Array (FPA of plasma based detectors) using heterodyne detection. The intensity at each pixel in the GDD FPA yields the usual 2D image. The value of the I-F frequency yields the range information at each pixel. This will enable 3D MMW imaging. In this work we experimentally demonstrate the feasibility of implementing an imaging system based on radar principles and FPA of inexpensive detectors. This imaging system is shown to be capable of imaging objects from distances of at least 10 meters.

Paper Details

Date Published: 9 June 2014
PDF: 8 pages
Proc. SPIE 9078, Passive and Active Millimeter-Wave Imaging XVII, 90780C (9 June 2014); doi: 10.1117/12.2053330
Show Author Affiliations
Daniel Rozban, Ariel Univ. (Israel)
Ben-Gurion Univ. of the Negev (Israel)
Avihai Aharon Akram, Ben-Gurion Univ. of the Negev (Israel)
Ariel Univ. (Israel)
N. S. Kopeika, Ben-Gurion Univ. of the Negev (Israel)
A. Abramovich, Ariel Univ. (Israel)
Assaf Levanon, Ben-Gurion Univ. of the Negev (Israel)


Published in SPIE Proceedings Vol. 9078:
Passive and Active Millimeter-Wave Imaging XVII
David A. Wikner; Arttu R. Luukanen, Editor(s)

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