A Novel DOA Estimation Algorithm for a 5-element Circular Array
Under the influence of the radome of the active and passive radar,the uniform circular array(UCA)becomes nonuniform in the electromagnetic performance,so the accuracy of direction of arrive(DOA)estimation is not high.This paper presents a universal look-up table algorithm for 5-element circular array to solve the problem.Firstly,we traverse the view field of the radar to obtain the long baseline phase differences of each angle point and store them to obtain the lookup table.Then,we can solve the incoming signals long baseline phase differences on the array and compare them with the phase differences stored in the lookup table according to the maximum cosine value criterion.Finally,we can get the closest point and the corresponding angle is the angle of the incoming signal.Numerical simulation results and experimental results verify the effectiveness of the algorithm.
DOA estimation 5-element circular array lookup table passive and active radar
Kaibo Cui Xi Chen Jingjian Huang Naichang Yuan
Department of Electronic Science and Engineering National University of Defense Technology Changsha,Hunan,Peoples Republic of China
国际会议
重庆
英文
1224-1228
2017-03-25（万方平台首次上网日期，不代表论文的发表时间）