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Analysis of Amplitude and Phase Errors in Digital-Beamforming Radars for Automotive Applications

  • Fundamentally, automotive radar sensors with Digital-Beamforming (DBF) use several transmitter and receiver antennas to measure the direction of the target. However, hardware imperfections, tolerances in the feeding lines of the antennas, coupling effects as well as temperature changes and ageing will cause amplitude and phase errors. These errors can lead to misinterpretation of the data andFundamentally, automotive radar sensors with Digital-Beamforming (DBF) use several transmitter and receiver antennas to measure the direction of the target. However, hardware imperfections, tolerances in the feeding lines of the antennas, coupling effects as well as temperature changes and ageing will cause amplitude and phase errors. These errors can lead to misinterpretation of the data and result in hazardous actions of the autonomous system. First, the impact of amplitude and phase errors on angular estimation is discussed and analyzed by simulations. The results are compared with the measured errors of a real radar sensor. Further, a calibration method is implemented and evaluated by measurements.show moreshow less

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Metadaten
Author:Rakesh Yadav Kodari, Markus Rösch, Marlene HarterGND
Creating Corporation:IEEE
Year of Publication:2020
Page Number:5
ISBN:978-83-949421-5-1 (digital)
ISBN:978-1-7281-5786-3 (Print on Demand)
Language:English
Tag:Amplitude and Phase Errors; Calibration; Digital Beamforming; Monte-Carlo Simulation
DDC classes:600 Technik, Medizin, angewandte Wissenschaften / 620 Ingenieurwissenschaften und Maschinenbau
Parent Title (English):2020 21st International Radar Symposium (IRS)
ISSN:2155-5753 (digital)
ISSN:2155-5745 (Print on Demand)
First Page:391
Last Page:395
Document Type:Conference Proceeding
Institutes:Bibliografie
Open Access:Zugriffsbeschränkt
Release Date:2021/01/14
Licence (German):License LogoEs gilt das UrhG
Note:
Konferenz: 2020 21st International Radar Symposium (IRS), Warsaw, Poland, 5-8 Oct. 2020
DOI:https://doi.org/10.23919/IRS48640.2020.9253874