Title
Vehicular Motion-based DOA Estimation with a Limited Amount of Snapshots for Automotive MIMO Radar
Author
Yuan, S. (TU Delft Microwave Sensing, Signals & Systems)
Fioranelli, F. (TU Delft Microwave Sensing, Signals & Systems) 
Yarovoy, Alexander (TU Delft Microwave Sensing, Signals & Systems)
Date
2023
Abstract
The problem of high-resolution direction-of-arrival (DOA) estimation based on a limited amount of snapshots in automotive multiple-input multiple-output (MIMO) radar has been studied. The number of snapshots is restricted to minimize target spread/migration in range and/or Doppler domains. A computationally efficient approach for side-looking arrays is developed, which combines the generation of motion-enhanced snapshots and MIMO technology, thus exploiting the movement of the vehicle and the spatial diversity of the transmit and receive antennas. Due to motion, a larger virtual aperture is obtained and the angular resolution is boosted, achieving the separation of targets that the traditional MIMO approach cannot discriminate, as well as better results than with other single snapshot DOA estimation techniques. Algorithm performance has been studied in simulations, and possible limitations have been discussed. In addition, the method has been verified experimentally with pointlike and extended targets, and good agreement between simulations and experimental results has been observed.
Subject
Automotive engineering
automotive radar
direction of arrival estimation
Direction-of-arrival estimation
Estimation
MIMO array
MIMO radar
Radar
Radar antennas
Radar imaging
snapshot imaging
To reference this document use:
http://resolver.tudelft.nl/uuid:2c5d6204-9039-4efc-90f8-15526d5d89c2
DOI
https://doi.org/10.1109/TAES.2023.3291335
Embargo date
2024-06-08
ISSN
0018-9251
Source
IEEE Transactions on Aerospace and Electronic Systems, 59 (6), 7611-7625
Bibliographical note
Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
Part of collection
Institutional Repository
Document type
journal article
Rights
© 2023 S. Yuan, F. Fioranelli, Alexander Yarovoy