A Novel Approach to Unambiguous Doppler Beam sharpening for Forward-looking MIMO Radar

Research output: Contribution to journalArticleScientificpeer-review

Abstract

The ambiguity problem of targets in Doppler beam sharpening (DBS) with forward-looking radar is considered. While DBS is proposed earlier to improve the angular resolution of the radar while keeping the antenna aperture size limited, such a solution suffers from ambiguities in the case of targets positioned symmetrically with respect to the platform movement. To address this problem, an approach named unambiguous Doppler-based forward-looking multiple-input multiple-output (MIMO) radar beam sharpening scan (UDFMBSC) is proposed, based on the combination of MIMO processing and DBS. The performance of the proposed method is compared to existing approaches using simulated data with point-like and extended targets. The method is successfully verified using experimental data.

Original languageEnglish
Pages (from-to)23494-23506
Number of pages13
JournalIEEE Sensors Journal
Volume22
Issue number23
DOIs
Publication statusPublished - 2022

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Beam scan
  • Doppler beam sharpening
  • Doppler effect
  • Doppler radar
  • Forward-looking radar
  • MIMO radar processing
  • Radar
  • Radar antennas
  • Radar imaging
  • Sensors
  • Signal resolution

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