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Proceedings Paper

Nonlinearity and phase noise effects in 340 GHz 3D imaging radar
Author(s): Duncan A. Robertson; Scott L. Cassidy; David R. Bolton
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Paper Abstract

Security scanning using sub-millimeter wave 3D imaging radar maps the subsurface structure of subjects, revealing objects hidden under clothing. This requires a wide dynamic range to detect small targets near large ones and centimeter range resolution to resolve small objects. For radar designers this translates into requiring a very low phase noise source which maintains good chirp linearity over a very wide fractional bandwidth, and other researchers have highlighted these effects. We present an assessment of the phase noise and chirp nonlinearity in our IRAD 340 GHz 3D imaging radar and make comparisons of different source architectures and nonlinearity compensation schemes.

Paper Details

Date Published: 31 May 2013
PDF: 10 pages
Proc. SPIE 8715, Passive and Active Millimeter-Wave Imaging XVI, 87150M (31 May 2013); doi: 10.1117/12.2015774
Show Author Affiliations
Duncan A. Robertson, The Univ. of St Andrews (United Kingdom)
Scott L. Cassidy, The Univ. of St Andrews (United Kingdom)
David R. Bolton, The Univ. of St Andrews (United Kingdom)

Published in SPIE Proceedings Vol. 8715:
Passive and Active Millimeter-Wave Imaging XVI
David A. Wikner; Arttu R. Luukanen, Editor(s)

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