一种基于旋转不变技术信号参数估计的改进算法

A modified algorithm based on estimating signal parameters via rotational invariance technique

为了有效估计智能天线系统中来自相关信号源的信号到达方向,提出了一种共轭倒序向量平均的算法,该方法是对二维旋转不变技术的信号参数估计算法的改进。数值实验结果表明,改进算法在不增加计算机资源占用的基础上,既能估计独立信号源的信号到达方向,也能有效地估计相关信号源的信号到达方向。

In order to estimate the signal direction of arrival from correlated signal sources in smart antenna system,an algorithm is proposed,which is named conjectured vector of inversed order.The algorithm is from modified two-dimensional estimating signal parameters via the rotational invariance technique.Numerical experiment shows that the proposed algorithm can estimate the signal direction of arrival from independent signal sources efficiently.Furthermore,it can estimate the signal direction of arrival from correlated signal sources without additional computer resources obviously.