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首页> 外文期刊>Aerospace and Electronic Systems, IEEE Transactions on >Effects of Mutual Coupling on the Accuracy of Adcock Direction Finding Systems
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Effects of Mutual Coupling on the Accuracy of Adcock Direction Finding Systems

机译：相互耦合对Adcock测向系统精度的影响

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摘要

The design of direction finding (DF) systems intended to operate over large frequency ranges involves various compromises. Typical implementations involve the use of multiple antenna arrays, each of which is scaled to cover a portion of the frequency range of interest. To minimize the size of the resulting multiband antenna assembly, two or more arrays can be combined in a coplanar antenna configuration. However, this introduces the issue of mutual coupling between the elements of the different arrays. A comprehensive study of the effects of mutual coupling on the estimation error for this type of antenna array configuration for two commonly used DF techniques is provided. Several important results clarify key design issues and trade-offs. It is shown that proper design choices are required to avoid uncorrectable ambiguities and the resulting large estimation errors.
机译：旨在在较大频率范围上工作的测向（DF）系统的设计涉及多种折衷方案。典型的实现方式涉及使用多个天线阵列，每个天线阵列都按比例缩放以覆盖感兴趣的频率范围的一部分。为了最小化所得到的多频带天线组件的尺寸，可以将两个或更多个阵列组合成共面天线配置。然而，这引入了不同阵列的元件之间的相互耦合的问题。针对两种常用的DF技术，对这种类型的天线阵列配置的互耦对估计误差的影响进行了全面研究。几个重要的结果阐明了关键的设计问题和折衷方案。结果表明，需要适当的设计选择，以避免不可纠正的歧义和由此产生的大估计误差。

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