High-Precision Fast Direction-of-Arrival Estimation Method for Planar Array  

作　　者：Shuai Li Lei Li Bo Liu Yihao Song Ming Li Jie Ren Wenting Jiang 

机构地区：[1]Institute of Telecommunication and Navigation Satellites,China Academy of Space Technology,Beijing 100094,China [2]Innovation Center of Satellite Communication System,CNSA,Beijing 100094,China [3]School of Science and Engineering,The Chinese University of Hong Kong,Shenzhen,and Shenzhen Research Institute of Big Data,Shenzhen 518172,China

出　　处：《Space(Science & Technology)》2023年第1期150-153,共4页空间科学与技术（英文）

摘　　要：The multiple signal classification method for direction-of-arrival estimation is widely applied in practical scenarios.However,the multiple signal classification method with planar array requires 2-dimensional on-grid spectrum searches,which would lead to the grid mismatch and high computational complexity.Therefore,a high-precision fast direction-of-arrival estimation method for planar array is proposed.In the proposed method,a 2-stage grid search approach over the 2-dimensional spectrum is firstly applied to obtain a quick coarse estimation of direction of arrival.Then,the estimation of higher precision is achieved via a quadratic surface fitting method.Simulation results verified the effectiveness of the proposed method.

关 键 词：COMPLEXITY ESTIMATION PLANAR 

分 类 号：V474[航空宇航科学与技术—飞行器设计]