Nonlinearity and phase noise effects in 340 GHz 3D imaging radar

Duncan A. Robertson*, Scott L. Cassidy, David R. Bolton

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationPASSIVE AND ACTIVE MILLIMETER-WAVE IMAGING XVI
EditorsDA Wikner, AR Luukanen
PublisherSPIE
Number of pages10
DOIs
Publication statusPublished - 2013
EventConference on Passive and Active Millimeter-Wave Imaging XVI - Baltimore, Moldova, Republic of
Duration: 2 May 2013 → …

Publication series

NameProceedings of SPIE
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Volume8715
ISSN (Print)0277-786X

Conference

ConferenceConference on Passive and Active Millimeter-Wave Imaging XVI
Country/TerritoryMoldova, Republic of
Period2/05/13 → …

Keywords

  • radar
  • sub-millimeter wave
  • imaging
  • concealed threat detection
  • FMCW
  • phase noise
  • chirp nonlinearity

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