空间谱估计算法与通道失配

SPATIAL SPECTRUM ESTIMATION ALGORITHM AND CHANNEL MISMATCHING

通道特性失配一直被认为是超分辨测向工程实现的一个重大障碍,文章证明了这是一个严重误解。当通道失配量值已知时,空间谱估计算法可以自行剔除其影响,因而具有良好的宽容性。对难以用一般方法测得的通道相位失配,提出了一种利用空间谱估计算法进行渐进无偏估计的方法。从而表明,空间谱估计算法在当前技术条件下就完全可以实现。

Channel mismatching has been regarded as a major obstacleon the way toward DF for spatial spectrum estimation by now.This paperproves the opinion wrong,Spatial spectrum estimation algorithm is ableto eliminate the effect of channel mismatching.A method of estimatingthe channel phase is given.The work of this paper shows that it is nottoo difficult or expensive for spatial spectum estimation to be a practicalDF method at present.