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

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

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A calibration method for a high-resolution hybrid MIMO turntable Toys 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 GRUNDIG GKNG1691DG 50/50 Fridge Freezer - Graphite antenna near-field responses are analysed, modelled and significantly mitigated based on the symmetry and differences in the responses of the MIMO configuration.