Beamforming for Phased-MIMO Radar using MVDR Algorithm

Phased Array RADAR has high processing gains but the area coverage is limited to a 120° cone whereas MIMO RADAR has a much enhanced flexibility for transmit beam pattern design. The proposed, is a technique for multiple input multiple output radar with co-located antenna which is called as  'Phased-MIMO radar‘. The new technique enjoys the advantages of the MIMO radar without sacrificing the main advantage of the phased-array radar which is the coherent processing gain at the transmitting side. The Phased-MIMO radar is limited to range independent diversity; this limits radar performance to mitigate non-desirable range dependent interference. The aspect of the proposed technique is to divide the FDA transmit array into multiple sub-arrays, each sub-arrays coherently transmits a distinct waveform with a small frequency increment. The beamforming performance as compared to phased-MIMO radar is tested by analyzing the ‗transmitted-received‘ beampattern and the output SINR performance. The possible future task is the application of phased-MIMO radar with frequency diversity in (RSN) radar sensor networks.