Two-dimensional Direction of Arrival Estimation based on Nested Circular Array

Circular array is a widely used omnidirectional scanning array. Nested array is a new variant of circular array. However, the traditional direction of arrival is not effective in estimating the performance of the nested circular array. Therefore, this paper uses the differential common array domain method to analyze the two dimensional direction of arrival estimation performance of the sparse circular array. Simulation results show that the method adopted can effectively improve the direction of arrival estimation performance of nested circular arrays.