Phased-MIMO Radar Using Hadamard Coded Signal

Phased-Multiple-Input Multiple-Output (PMIMO) radar has been studied in the literature. The transmit array is subdivided into several overlapping subarrays with equal or unequal numbers of elements which aims to exploit the primary benefit of phased array radar, that is coherent processing gain without diversity gain, and MIMO radar benefit, that is diversity gain without coherent gain. In this paper, an approach to PMIMO using Hadamard coded signal with orthogonality properties is shown to improve the directivity and to lower sidelobe level for a specific target direction. The effectiveness of the approach is demonstrated through simulation results.