A Beampattern Design Method for Airborne MIMO Radar Based on Prior Information

A beampattern design method for the airborne Multiple Input Multiple Output (MIMO) radar based on the prior information is proposed to suppress the sidelobe clutter in the non-homogeneous clutter environment. Using the two Dimensional (2D) prior information of the target and clutter in the spatial and Doppler domain, the cost function for the correlation matrix of the transmission waveform is established by employing the maximum output Signal-to-Clutter-plus-Noise Ratio (SCNR) criterion after the space-time matched filter and it can be solved by the Semi-Definate Programming (SDP). The simulation results indicate that the transmission beampattern optimized by the proposed method is able to increase effectively the SCNR output after the space-time 2D matched filter in the non-homogeneous clutter environment.