Thinned MIMO frame-arrays for radar imaging

Thinned multiple-input multiple-output (MIMO) frame-arrays are proposed for 3-dimensional imaging radars. Their elements are placed on the perimeter of a square, thus allowing for simplified front-end architectures. A synthesis method for large arrays is described. A deconvolution algorithm is implemented for image enhancement. The principle is verified with a 12-transceiver array in a Ka-band radar.