Angle Estimation for Bi-static MIMO Radar Based on Tri-iterative Algorithm

The Bi-static MIMO (multiple-input multiple-output) radar signal modal is established in this paper. And the proper coefficient of the MF (matcher filter) is chosen in order to keep the noise output has the same statistical property as the noise input. To make the computational complexity lower and the convergence speed faster, the signal subspace is used as a dimension-reducing matrix. A novel cost function is proposed based on the LS (least squares), which is solved by using the Tri-Iterative Algorithm. Afterwards, a unique closed solution in each iteration which is posed a typical least square problem is derived and the receiving and the transmitting angles are estimated for bi-static MIMO radar. It is worth mentioning that the estimated angles can be paired automatically. Finally, Simulation results are presented to verify the effectiveness of the proposed method.