信息工程大学学报2026，Vol.27Issue(2)：161-168,8.DOI:10.3969/j.issn.1671-0673.2026.02.005
一种利用ESPRIT的线阵DOA与极化参数联合估计
A Joint Estimation of DOA and Polarization Parameters for Linear Arrays Based on ESPRIT
杨森 1崔毓函 1黄东华 1张一帆 1胡德秀1
作者信息
摘要
Abstract
To address the issue of high computational complexity in joint multi-parameter estimation for linear polarization-sensitive arrays,an ESPRIT-based algorithm is proposed for the joint estimation of two-dimensional direction of arrival(DOA)and polarization parameters.First,a uniform linear array(ULA)model composed of polarization-sensitive arrays is constructed.By performing eigenvalue de‑composition on the covariance matrix of the received data,the signal subspace is divided into five sub-arrays.Based on the rotational invariance property,elevation angles are then obtained in closed form using the phase differences from two of the sub-arrays,while azimuth angles are derived directly from the phase differences of the ratios among the other three sub-arrays.Independent estimation of direc‑tional parameters is thereby achvieved.Finally,closed-form estimation of the polarization parameters is achieved.Traditional multi-dimensional spectral-peak searches and iterative operations are avoided by using the algorithm,which significantly reduces the computational load and ensures real-time per‑formance.Experimental results show that the estimation accuracies of all parameters are higher by us‑ing the proposed algorithm than those of the reduced-dimension MUSIC algorithm and the Ratio-ESPRIT algorithm except that of the polarization amplitude angle,while its computational efficiency is significantly superior to that of the reduced-dimension MUSIC algorithm.关键词
DOA估计/极化参数估计/极化敏感阵列/均匀线阵/旋转不变子空间Key words
DOA estimation/polarization parameters estimation/polarization-sensitive array/uni‑form linear array(ULA)/estimation of signal parameters via rotational invariance techniques(ESPRIT)分类
信息技术与安全科学引用本文复制引用
杨森,崔毓函,黄东华,张一帆,胡德秀..一种利用ESPRIT的线阵DOA与极化参数联合估计[J].信息工程大学学报,2026,27(2):161-168,8.
