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Article

Calibration to Mitigate Near-Field Antennas Effects for a MIMO Radar Imaging System

1
Antenna & High Frequency Research Centre, Technological University Dublin, D08 NF82 Dublin, Ireland
2
Department of Telecommunications Engineering, Ho Chi Minh City University of Technology, Ho Chi Minh City, Vietnam
*
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in 2020 International Workshop on Antenna Technology (iWAT), Bucharest, Romania, 25–28 February 2020.
Sensors 2021, 21(2), 514; https://doi.org/10.3390/s21020514
Received: 7 December 2020 / Revised: 9 January 2021 / Accepted: 10 January 2021 / Published: 13 January 2021
(This article belongs to the Special Issue Antennas and Propagation)
A calibration method for a high-resolution hybrid MIMO turntable radar imaging system is presented. A line of small metal spheres is employed as a test pattern in the calibration process to measure the position shift caused by undesired antenna effects. The unwanted effects in the antenna near-field responses are analysed, modelled and significantly mitigated based on the symmetry and differences in the responses of the MIMO configuration. View Full-Text
Keywords: near-field antenna effect; radar calibration; MIMO radar; turntable radar; UWB radar; radar system; scattering imaging; inverse scattering problem; radar resolution near-field antenna effect; radar calibration; MIMO radar; turntable radar; UWB radar; radar system; scattering imaging; inverse scattering problem; radar resolution
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MDPI and ACS Style

Hoang, H.; John, M.; McEvoy, P.; Ammann, M.J. Calibration to Mitigate Near-Field Antennas Effects for a MIMO Radar Imaging System. Sensors 2021, 21, 514. https://doi.org/10.3390/s21020514

AMA Style

Hoang H, John M, McEvoy P, Ammann MJ. Calibration to Mitigate Near-Field Antennas Effects for a MIMO Radar Imaging System. Sensors. 2021; 21(2):514. https://doi.org/10.3390/s21020514

Chicago/Turabian Style

Hoang, Ha, Matthias John, Patrick McEvoy, and Max J. Ammann. 2021. "Calibration to Mitigate Near-Field Antennas Effects for a MIMO Radar Imaging System" Sensors 21, no. 2: 514. https://doi.org/10.3390/s21020514

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