Very low-phase noise, coherent 94 GHz radar for micro-Doppler and vibrometry studies.

Duncan A. Robertson*, Graham M. Brooker, Patrick D. L. Beasley

*Corresponding author for this work

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

19 Citations (Scopus)

Abstract

Micro-Doppler and vibrometry measurements require coherent radars with low phase noise. We report the development of a novel, very low phase noise 94 GHz radar, called T-220, which offers superior performance for micro-Doppler and vibrometry studies compared with our previous work. The radar uses a combination of direct digital synthesis (DDS) chirp generation, frequency upconversion and frequency multiplication to yield very low phase noise and rapid, contiguous chirps, necessary for Doppler studies and other coherent processing applications. Dual fan beam antennas are used to achieve negligible transmit-receive leakage, with fine azimuth resolution and modest elevation coverage. The resulting PPI imagery is very high fidelity with little or no evidence of phase noise effects.

Original languageEnglish
Title of host publicationRADAR SENSOR TECHNOLOGY XVIII
EditorsKI Ranney, A Doerry
PublisherSPIE
Number of pages9
DOIs
Publication statusPublished - 2014
EventConference on Radar Sensor Technology XVIII - Baltimore, Moldova, Republic of
Duration: 5 May 20147 May 2014

Publication series

NameProceedings of SPIE
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Volume9077
ISSN (Print)0277-786X

Conference

ConferenceConference on Radar Sensor Technology XVIII
Country/TerritoryMoldova, Republic of
Period5/05/147/05/14

Keywords

  • Radar
  • micro-Doppler
  • coherent
  • DDS
  • vibrometry
  • millimeter wave
  • phase noise

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