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Evaluation of Antenna Calibration and DOA Estimation Algorithms for FMCW Radars
Publikationstyp
Conference Paper
Date Issued
2019-10
Sprache
English
TORE-URI
Start Page
944
End Page
947
Article Number
8910916
Citation
European Microwave Conference, EuMC: 8910916 (2019-10)
Contribution to Conference
Publisher DOI
High-resolution subspace-based direction of arrival (DOA) estimation methods critically rely on a correct model of the array steering vectors. In order to achieve a high accuracy of parameter estimation, an antenna array calibration is necessary. This paper presents a comparative study of different active calibration methods for frequency-modulated continuous wave (FMCW) radars. Additionally, improvements to the presented local calibration method are suggested. The theoretical performance of the methods is evaluated with simulations and validated with data from real-world measurements.
Subjects
antenna coupling
calibration
direction of arrival estimation
fmcw radar
music
mutual coupling
phased arrays