Characterization of the effect of low pass filter response on the interference in FMCW automotive radar

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

Abstract

Analysis of the effect of the low pass filter parameters on automotive FMCW radar performance in the presence of interference is undertaken for the first time in this paper. The influence of the filter's impulse response is analyzed in terms of the interference duration and effectiveness of the interference mitigation technique in the time domain. This analysis is conducted by computer modelling and experimental measurement by using two representative automotive radars. Lower cut-off frequency and higher filter order reduce the lifetime of interference; however, steeper roll off of the filter will introduce ringing effect. It is shown that the ringing has a negative effect on the performance of the interference mitigation technique in the time domain, especially for a low pass filter with lower cut-off frequencies.
Original languageEnglish
Title of host publication2021 21st International Radar Symposium (IRS)
PublisherIEEE
Number of pages6
ISBN (Electronic)9783944976310, 9783944976303 (USB)
ISBN (Print)9781665439213 (PoD)
DOIs
Publication statusPublished - 2 Jul 2021
Event21st International Radar Symposium, IRS 2021 - Berlin, Germany
Duration: 21 Jun 202122 Jun 2021

Publication series

NameProceedings International Radar Symposium
PublisherIEEE
ISSN (Print)2155-5745
ISSN (Electronic)2155-5753

Conference

Conference21st International Radar Symposium, IRS 2021
Country/TerritoryGermany
CityBerlin
Period21/06/2122/06/21

Bibliographical note

Acknowledgment:
This work is supported by Innovate UK grant 104526 and is part of “Co-existence Simulation MOdeling of Radars for Self-driving (COSMOS)” project.

Keywords

  • Analytical models
  • Radar measurements
  • Computational modeling
  • Cutoff frequency
  • Low-pass filters
  • Interference
  • Radar

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