Modeling and estimation of mutual coupling in a uniform linear array of dipoles
Modeling and estimation of mutual coupling in a uniform linear array of dipoles
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DOI：
10.1109/icassp.1999.761384
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发表时间：
1999-03
期刊：
影响因子：
--
通讯作者：
T. Svantesson
中科院分区：
文献类型：
--
作者：
T. Svantesson
用基本的电磁学概念计算了偶极子均匀线性阵列的相互耦合。由于耦合往往是未知的，需要进行估计，因此提出了一种基于电磁分析的简单模型。该模型的参数化是局部无二义性的。并给出了方向和耦合参数联合解唯一的必要条件。最后，利用极大似然法估计了方向和耦合参数。结果表明，只包含几个参数的简单耦合模型能较好地描述整个电磁模型。
The mutual coupling in a uniform linear array (ULA) of dipoles is calculated using basic electromagnetic concepts. Since the coupling often is unknown and needs to be estimated, a simpler model is proposed based on the electromagnetic analysis. The parameterization of this model is shown to be locally unambiguous. A necessary condition for the joint solution of directions and coupling parameters to be unique is also derived. Finally, the directions and coupling parameters are estimated using a maximum likelihood method. It is found that the simpler coupling model with just a few parameters well describes the full electromagnetic model.