Phase synchronization at target in MIMO radar

The problem of phase synchronization mismatch in multiple-input and multiple-output (MIMO) radar sacrifices severely its detection performance. To overcome such problem, we propose a new phase synchronization algorithm in MIMO radar. The novelty of the proposed algorithm is to achieve final synchronization at target by utilizing only two time slots no matter how many of transmitters, whereas the existing algorithms just achieved the synchronization among transmitters and took more time slots as the number of transmitters increasing. Therefore, the proposed algorithm not only has better performance but also reduces the synchronization overhead obviously as compared with the existing algorithms. Through theoretical derivation and simulation results, the superiority of the proposed algorithm is verified.