Fully Electronic 2D DDM‐MIMO Near‐Field Imaging Array

ABSTRACT A fully electronic two‐dimensional Doppler division multiplexing multiple‐input and multiple‐output near‐field imaging array is firstly proposed. The array is motivated by transmitting signal multiplexing in the Doppler domain and real aperture imaging, which can reduce the scanning time and thus reduce the impact of motion errors on the image reconstruction of dangerous objects. Simulation and experimental results are utilised to verify the effectiveness of the proposed array.