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Frequency-sweep linearization for FMCW sensors with high measurement rate

  • Markus Pichler
  • , Andreas Stelzer
  • , Peter Gulden
  • , Claus Seisenberger
  • , Martin Vossiek

Research output: Chapter in Book/Report/Conference proceedingConference proceedingspeer-review

Abstract

In certain object surface distance measurement applications where contactless and robust estimates are required, microwave frequency modulated continuous wave sensors are the solution of choice. High linearity of transmitted frequency over time is a prerequisite for accurate results and poses a challenge, if high measurement rates are to be achieved simultaneously. This paper presents a novel method for sweep linearization in phase-locked-loop-based frequency synthesizers by determining the instantaneous output signal phase and -error directly within the synthesizer. The proposed method is compared to a conventional voltage predistortion linearization technique.
Original languageEnglish
Title of host publicationIEEE MTT-S International Microwave Symposium - IMS 2005 Digest
Pages1693 - 1696
Number of pages4
Volume3
DOIs
Publication statusPublished - Jun 2005

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2005
ISSN (Print)0149-645X

Fields of science

  • 202036 Sensor systems

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