基于正交偶极子阵的全四元数Capon波束形成器
A Fully Quaternion-Valued Capon Beamformer Based on Crossed-Dipole Arrays
摘要：
四元数模型已经被开发用于基于交叉偶极子阵列的波达方向估计和波束形成。然而，对于几乎所有的模型，特别是对于自适应波束形成，期望信号仍然是复值的，一个例子是四元数Capon波束形成器。然而，由于复值期望信号仅具有两个分量，而在四元数中存在四个分量，因此仅使用四元数值波束形成器输出的两个分量，并且简单地去除剩余的两个分量。这导致其实施中的大量冗余。在这项工作中，我们考虑了一个四元数值的期望信号，并开发了一个完整的四元数值Capon波束形成器，它具有更好的性能和更低的复杂度，并被证明是更强大的阵列指向错误。
英文摘要：
Quaternion models have been developed for both direction of arrival estimation and beamforming based on crossed-dipole arrays in the past. However, for almost all the models, especially for adaptive beamforming, the desired signal is still complex-valued and one example is the quaternion-Capon beamformer. However, since the complex-valued desired signal only has two components, while there are four components in a quaternion, only two components of the quaternion-valued beamformer output are used and the remaining two are simply removed. This leads to significant redundancy in its implementation. In this work, we consider a quaternion-valued desired signal and develop a full quaternion-valued Capon beamformer, which has a better performance and a much lower complexity and is shown to be more robust against array pointing errors.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
