宽带MIMO雷达角度估计的统计分辨力

he angular resolution limit (ARL) for wideband MIMO radar based on the statistical resolution theory is presented due to the problem that the effects of noise and parameters of the target on the actual resolution ability of the MIMO radar couldn't be reflected by the traditional resolution theory. The signal model of wideband MIMO radar is set up, then the resolution problem is modeled as a binary hypothesis test. The statistical angular resolution limit (SARL) for wideband MIMO radar which is based on the generalized likelihood ratio test (GLRT) is derived when the probability of false alarm and the probability of detection are given. The influences of detection parameters, the signal to noise ratio (SNR), the parameters of target, the parameters of transmit waveforms and the geometry parameters of MIMO radar on the ARL are analyzed. And a better result that could reflect the actual resolution ability of radar compared with the traditional resolution theory is given, which could provide the optimization criterion for radar system design.