Phase noise analysis in FMCW radar systems

Kashif Siddiq, Robert J. Watson, Steve R. Pennock, Philip Avery, Richard Poulton, Ben Dakin-Norris

Research output: Chapter or section in a book/report/conference proceedingChapter in a published conference proceeding

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Phase noise in radar transmitters is known to raise the noise floor around large targets, making impossible the detection & tracking of small targets nearby. This paper presents phase-noise modelling techniques, with a focus on homodyne FMCW radars, to accurately predict the level of phase noise expected in the radar display. Phase noise models of the sub-systems inside a typical radar are presented. We also discuss the cancellation of phase noise in coherent radar systems for short-ranges and analyse the situation for longer ranges. Practical measurements from a millimetre-wave radar system are presented to validate the theoretical modelling.

Original languageEnglish
Title of host publicationConference Proceedings of the 45th European Microwave Week (EuMW), 2015
Subtitle of host publication"Freedom Through Microwaves"
Number of pages4
ISBN (Print)9782874870392
Publication statusPublished - 2 Dec 2015
Event45th European Microwave Conference, EuMC 2015 - Paris, France
Duration: 7 Sept 201510 Sept 2015


Conference45th European Microwave Conference, EuMC 2015


  • Coherence
  • FMCW
  • Homodyne Radar
  • Phase Noise


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