Joint DOD and DOA Estimation of High Speed Moving Target in Bistatic MIMO Radar

Owning to the fact that the high speed moving target moves across several range cells during the long coherent observation period, joint Direction Of Departures (DODs) and Direction Of Arrivals (DOAs) estimation with the echo data located at the single rang cell has considerable error that affect the cross-positioning for the high speed moving targets in bistatic MIMO radar. A method for estimating the parameters of high speed moving targets is presented. The average of the sample covariance matrixes estimated from the pulse compression outputs at different range cells is exploited to obtain the high precision estimation of the covariance matrix. Then, DODs and DOAs of targets can be estimated by using the traditional supper-resolution algorithm. The simulation results indicate that the angle estimation accuracy of the proposed method for the high speed moving targets, which is independent of the number of range cells that target moves across, is better than that of the existence approaches, and is close to that of the existence approaches with no range migration occurrence.