Fast Angle Estimation Based on MSWF and Polynomial Rooting for Monostatic MIMO Radar

A novel method employing Multi-Stage Wiener Filter (MSWF) and polynomial rooting is proposed for the one-dimensional angle estimation of MIMO radar. In this algorithm, the signal subspace is obtained using MSWF, which avoids the known expected signal, the estimation of the virtual data autocorrelation matrix and eigen-decomposition. Then, a polynomial rooting is adopted to realize angle estimation. The effectiveness of the proposed method is verified by numerical examples.