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

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...

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Veröffentlicht in:	Sensors (Basel, Switzerland) Switzerland), 2021-01, Vol.21 (2), p.514
Hauptverfasser:	Hoang, Ha, John, Matthias, McEvoy, Patrick, Ammann, Max J
Format:	Artikel
Sprache:	eng
Schlagworte:	MIMO radar near-field antenna effect radar calibration radar system turntable radar UWB radar
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Beschreibung
Zusammenfassung:	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.
ISSN:	1424-8220 1424-8220
DOI:	10.3390/s21020514