Window Function for MIMO Radar Beamforming to Mitigate Multipath Clutter

In this paper, a novel window function for MIMO (multiple input multiple output) radar beamforming to mitigate multipath clutter is proposed. The proposed window is derived by modeling a covariance matrix of multipath clutter. The computer simulation result indicates that the proposed window has an integrated sidelobe level ratio of -37.8 dB, which is 7.9 dB lower than that of conventional Hamming-on-Hamming window case while maintaining comparable performance in mismatch loss, beamwidth, and peak sidelobe level ratio.