摘要
作为B5G/6G的可能发展方向之一,毫米波大规模敏感阵列拥有诸多潜在的优势,如能提供高分辨率的二维波达角(2D-DOA)估计、可以实现极化保密通信等。关注极化敏感阵列中的相干源2D-DOA估计问题,提出了一种基于矩阵重排的快速估计方法。首先利用矩阵重排解决矩阵秩亏问题,再利用传播算子(PM)进行高效测向,并给出了算法相关性能的理论分析,包括计算复杂度、可辨识性和Cramer-Rao界。最后,通过仿真结果验证了所提算法的有效性。
As one of the possible development directions for B5G/6G,millimeter wave large-scale sensitive array has many potential advantages,for instance,providing super-resolution two-dimensional direction-of-arrival(2D-DOA)estimation and realizing polarized secure communications.For the 2D-DOA estimation issue of coherent sources in polarized sensitive array,a matrix rearrangement-based fast estimation algorithm is proposed.It first solves the rank-deficient issue via matrix rearrangement,and performs efficient direction finding via PM.Then the theoretical analysis of the related algorithm performances including computational complexity,discriminability,and Cramer-Rao bound.Finally,the effectiveness of the proposed algorithm is verified via simulations.
作者
张喆
文方青
师俊朋
ZHANG Zhe;WEN Fangqing;SHI Junpeng(Hubei Key Laboratory of Intelligent Vision Based Monitoring for Hydroelectric Engineering,China Three Gorges University,Yichang 443002,China;College of Computer and Information Technology,China Three Gorges University,Yichang 443002,China;College of Electronic Countermeasure,National University of Defense Technology,Hefei 230037,China)
出处
《移动通信》
2023年第2期15-20,共6页
Mobile Communications
基金
国家自然科学基金(62271286)。
关键词
毫米波大规模极化敏感阵列
相干信源
矩阵重排
传播算子
millimeter wave large-scale sensitive array
coherent sources
matrix rearrangement
propagator method
