一种矢量传感器阵列误差的自校正算法及DOA估计

An Array Self-calibration Method and DOA Estimation for Electromagnetic Vector-sensor Array

突破大多数阵列误差校正技术针对标量传感器阵列误差模型的限制,提出一种对电磁场矢量传感器阵列误差进行自校正的方法。该方法针对存在方位依赖阵元幅相误差的矢量传感器阵列模型;所提算法基于子空间的思想可对任意极化状态多源信号的信源方位、极化参数和对应的阵元幅相误差进行无模糊联合估计;该方法适用于具有任意几何结构的矢量传感器阵列,仿真试验表明了该算法的有效性。

At present,most array calibration techniques are proposed for scalar-sensor arrays.However,the proposed subspace-based array self-calibration method herein could estimate the angle,polarization of the arrival signals which have arbitrary polarization and angularly dependent gain and phase uncertainties simultaneously for the electromagnetic vector-sensor arrays.In addition,the approach is applicable to EMVS arrays of arbitrary geometry.Simulations show the efficacy of the proposed method.