DOA estimation of coherent signals based on array rotation and translation method

Abstract

The conventional decoherence methods based on the uniform circular array are generally affected by the array model errors. To solve this problem, we proposed a new algorithm based on array rotation and translation method. By rotating and translating the dual antenna array to form multiple virtual UCAs, the proposed algorithm can achieve multi-targets direction estimation of coherent signals. The simulation results show that the new algorithm has better robustness on multi-channel gain-phase errors, and it can realize the direction of arrival estimation of coherent and independent signals at the same time.