A radar target image reconstruction approach combining the joint autofocus/super-resolution model and the numerical Metropolis-Hastings(M-H) Bayesian technique is presented.The approach is based on the scattering/imaging model and adopts the numerical M-H algorithm to produce a series of samples that characterize the probability distributions of the target scattering cross sections and defocusing parameters,so the optimal estimation of the defocusing parameters and the scattering cross section e...