Sparse MIMO Array for Improved 3D mm-Wave Imaging Radar

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Abstract

For imaging radar, higher angular resolution is essential, yet it requires a larger number of antenna elements in enlarged regular arrays. By using antenna-array sparsity, improved imaging performance can be achieved without the increase of antenna elements and the corresponding cost. A two-step synthesis procedure is developed and validated with a model of a 3D MIMO mm-wave imaging radar. Through simulations, it is shown that with a sparse transmit and receive array, an improvement in beam-width and side-lobe levels in the virtual array patterns for MIMO radars can be achieved. The model is confirmed by an experiment using the Walabot-60GHz radar from Vayyar.

Original languageEnglish
Title of host publicationEuRAD 2020 - 2020 17th European Radar Conference
PublisherInstitute of Electrical and Electronics Engineers
Pages342-345
Number of pages4
ISBN (Electronic)9782874870613
DOIs
Publication statusPublished - 3 Feb 2021
Event17th European Radar Conference, EuRAD 2020 - Utrecht, Netherlands
Duration: 10 Jan 202115 Jan 2021

Conference

Conference17th European Radar Conference, EuRAD 2020
CountryNetherlands
CityUtrecht
Period10/01/2115/01/21

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This work is part of the HTSM research program under project number 13922, funded by NWO-TTW (Netherlands Organization for Scientific Research). The authors would like to thank Radarxense B.V. and Vayyar Imaging Ltd for supporting this research.


Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.

Keywords

  • antenna arrays
  • millimeter wave radar
  • MIMO radar
  • radar antennas
  • radar imaging
  • sparse arrays

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