An Estimation of DOA Methods Based on MIMO Distributed Arrays.

For estimation of DOA of MIMO radar, a new method is proposed by using transmit subarrays widely separated and a receive array with the receive elements closely spaced. The spacing between transmit sensors is equal to the aperture of receive array. And the process are deduced to combine all estimations with the assistant of transmit. Compared with colocated MIMO radar, the array aperture and degrees of freedom are improved in spatial diversity MIMO radar, and the simulation results show that the proposed algorithms is effective. [ABSTRACT FROM AUTHOR]