Sectorized FMCW radar by modular system design and MIMO sub-arrays for automotive applications

C. A. Alistarh, S. K. Podilchak, J. Thompson, M. Sellathurai

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

Abstract

Automotive radars have evolved in recent years, however, angular resolution and fast processing times demand constant improvements in performance. In this paper, a novel proof-of-concept radar sensor is presented. In particular, a realtime detection approach is proposed which uses a modular radar architecture to achieve a wide field-of-view (FOV). The radar also offers improved angular resolution due to a sparse non-uniform antenna receiver and results are compared to a more standard uniform linear array equivalent. The antennas achieve improved percentage bandwidths in comparison to a more standard microstrip patch antenna solution at the same carrier frequency. In addition, the sub-modular system resolves targets with lower radiation losses in comparison with an equivalent uniform linear array under the same conditions. The proposed radar system is able to achieve a half-power beamwidth of 2.2 degrees using 32 antenna elements arranged in a non-uniform sparse configuration and can detect multiple targets with a range resolution of 10 cm.
Original languageEnglish
Title of host publicationInternational Conference on Radar Systems (RADAR 2022)
PublisherInstitution of Engineering and Technology
Pages453-458
Number of pages6
Volume2022
Edition17
ISBN (Electronic)9781839537776
DOIs
Publication statusPublished - 7 Feb 2023
EventInternational Conference on Radar Systems 2022 - Edinburgh, United Kingdom
Duration: 24 Oct 202227 Oct 2022
https://www.aconf.org/conf_181833.2022_International_Radar_Conference.html

Conference

ConferenceInternational Conference on Radar Systems 2022
Abbreviated titleRADAR 2022
Country/TerritoryUnited Kingdom
CityEdinburgh
Period24/10/2227/10/22
Internet address

Keywords

  • antenna rays
  • antenna radiation patterns
  • array signal processing
  • CW radar
  • direction-of-arrival estimation
  • FM radar
  • linear antenna arrays
  • microstrip antennas
  • radar antennas
  • radar detection
  • radar signal processing
  • road vehicle radar
  • 32 antenna elements
  • angular resolution
  • automotive applications
  • automotive radars
  • equivalent unigorm linear array
  • field-of-view
  • lower radiation losses
  • mimo sub-arrays
  • modular radar architecture
  • modular system design
  • nonuniform sparse configuration
  • novel proof-of-concept radar sensor
  • percentage bandwidths
  • radar system
  • range resolution
  • realtime detection approach
  • sectorized fmcw radar
  • standard microstrip patch antenna solution
  • standard uniform linear array equivalent
  • sub-modular system
  • times demand constant improvements

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