Misspecified Cramér-Rao Bound for Multipath Model in MIMO Radar.

Moshe Levy-Israel, Igal Bilik, Joseph Tabrikian

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

Abstract

Automotive radars need to provide reliable information on the host vehicle's surroundings in all operating conditions, including dense urban scenarios. Urban scenarios are characterised by the presence of multiple man-made flat surfaces. The multipath phenomenon occurs when radar operates near smooth flat surfaces. It can significantly degrade the radar performance in terms of the probability of false-alarm and direction-of-arrival (DOA) estimation accuracy. In many practical scenarios, the direct path and multipath DOAs are unresolvable, inducing bias in target DOA estimation. The conventional Cramér-Rao bound (CRB) is unable to predict this misspecification phenomenon and, therefore, is not useful. This work investigates the multipath effect on the multiple-input multiple-output (MIMO) radar DOA estimation performance by evaluating the misspecified CRB (MCRB). The ability of the derived MCRB to evaluate the multipath effect on the MIMO radar DOA estimation performance is investigated via simulations of the typical automotive scenarios.
Original languageEnglish
Title of host publication2022 IEEE 12th Sensor Array and Multichannel Signal Processing Workshop, SAM 2022
PublisherIEEE Computer Society
Pages81-85
Number of pages5
ISBN (Electronic)9781665406338
DOIs
StatePublished - 2022
Event12th IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2022 - Trondheim, Norway
Duration: 20 Jun 202223 Jun 2022

Publication series

NameProceedings of the IEEE Sensor Array and Multichannel Signal Processing Workshop
Volume2022-June
ISSN (Electronic)2151-870X

Conference

Conference12th IEEE Sensor Array and Multichannel Signal Processing Workshop, SAM 2022
Country/TerritoryNorway
CityTrondheim
Period20/06/2223/06/22

Keywords

  • Automotive radar
  • Direction-of-arrival estimation
  • MCRB
  • MIMO radar
  • Multipath

ASJC Scopus subject areas

  • Signal Processing
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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