基于辅助矢量基的超分辨快速测向算法  

Super-resolution Fast DF Algorithm Based on Auxiliary-vector Basis

作　　者：张范军 肖龙[2] 

机构地区：[1]海军司令部第四部,北京100081 [2]西南电子设备研究所,成都610036

出　　处：《舰船电子对抗》2014年第3期63-65,共3页Shipboard Electronic Countermeasure

摘　　要：以MUSIC和ESPRIT为代表的空间谱估计测向算法需要对矩阵进行特征分解或奇异值分解。当阵列数量增加时,矩阵特征分解将耗费大量的运算资源。给出了一种基于辅助矢量基的超分辨快速测向算法,通过计算一组辅助矢量基构造子空间进行测向,获得了较好的测向精度,避免了矩阵的特征分解,从而降低了计算复杂度,最后通过仿真示例验证了该方法的有效性和可行性。Matrix eigenvalue or singularvalue resolution needs to be performed in space spectral estimation direction finding（DF）algorithms such as MUSIC and ESPRIT.When the array quantity increases,a mass of calculating resources will be consumed for matrix eigenvalue resolution.This paper presents a super-resolution fast DF algorithm based on auxiliary-vector basis,performs the DF by calculating a set of auxiliary-vector basis to construct subspace,obtains good DF precision and avoids eigenvalue resolution of the matrix,thereby decreases the calculating complexity,finally validates the feasibility and validity of the method through simulation example.

关 键 词：阵列信号处理 子空间测向 辅助矢量基 

分 类 号：TN971.1[电子电信—信号与信息处理]