Performance analysis on MIMO radar waveform based on mutual information and minimum mean-square error estimation

Multiple-input multiple-output (MIMO) technology can improve the performance of radar by spatial diversity. Two methods for designing MIMO radar waveform are introduced in this paper. The first one is to design waveforms that maximize the conditional mutual information (MI) between the reflected waveform and the channel impulse response. The second one is to minimize the minimum mean-square error (MMSE) in channels estimation. A particular analysis of detection performance is made here to illuminate the improvement. Finally the simulation results are presented and the performances of the two approaches are compared.