Abstract:

Large Doppler frequency produced by high speed moving target causes the serious mismatch of the traditional matched filter. Thus the virtual array of the multiple input multiple output (MIMO) radar cannot be formed by the traditional matched filter when the speed of target is high. The bistatic MIMO radar, in which the range resolution of radar is reduced to achieve the detection within a long coherent observation period, is used for high speed moving target localization. The frequency domain processing after the conjugate multiplications between the returned signals and the transmitted waveforms is exploited to form the virtual array. A joint launching angle and arrival angle estimation via the traditional supper resolution algorithm can be used for cross localization of the high speed moving targets located at the same rough range bin. The simulation results indicate the feasibility and validity of the proposed method.