High Resolution DOA Estimation for Vehicular Radar and Communication Integration System

A new DOA estimation method with high resolution is proposed in this paper for vehicular radar and communication integration system in V2V scenario. This method uses digital beam forming algorithm to estimate the weight vector, from which the DOA of other vehicles can be estimated. Firstly, we presents a new digital beam forming algorithm. Secondly, we can estimate the weight vector based on the new algorithm, and then form the direction map. Finally, the DOA can be obtained by determining the maximum value of the direction map. Through simulation and analysis, the proposed method can obtain higher resolution.