Low angle estimation in MIMO radar

A low angle estimation method in the presence of the multipath for multiple-input multiple-output (MIMO) radar is proposed. The multipath signal model for MIMO radar is constructed with both transmitted multipath and received multipath signals being considered. To reduce the computational burden and retain estimation precision, the beam-space maximum likelihood algorithm is developed for angle estimation. This method overcomes multipath effects for low angle measurement, and only requires one one-dimension search procedure. Simulation results are presented to verify the effectiveness of the proposed method.