A novel method of direction of arrival estimation for large parabolic reflector antenna

In this paper, a novel approach of direction of arrival (DOA) estimation for large parabolic reflector antenna based on focal-field distributions is proposed. First through simulation, we get the focal field distribution with different incident direction. And then the data received by the array feed is restored by interpolation algorithm. Finally the direction of incoming plane wave can be identified by matching the restoration data with simulation data. Numerical simulation results demonstrate satisfactory performance of the approaches.