Hybrid orthogonal-phased array MIMO RADAR

Multiple Input Multiple Output (MIMO) radar is a multiple aperture technology characterized by the ability to transmit diverse signals at each aperture. This is in contrast to traditional phased array radar whereby a single signals is transmitted with a phase shift applied at each element to enable steering of the transmit beampattern. The hybrid MIMO phased array radar (HMPAR) concept is an outgrowth of the monostatic MIMO construct, in which all sensors have the same view of the far field target which is known as colocated antenna. In the HMPAR, the full transmit array is partitioned into sub-arrays which can be electronically steered in different directions and driven by separate transmit waveforms, furthermore the configuration of the array into sub-arrays can be changed. In this paper it is supposed that antennas are colocated and it will be shown that how it is possible to build a desire beampattern by means of designing cross-correlation matrix of transmitted signals to sector the space with such a system.