Filtering Performance of Polarization Sensitive Array:Completely Polarized Case

XU Zhen-hai; WANG Xue-song; XIAO Shun-ping; ZHUANG Zhao-wen

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Filtering Performance of Polarization Sensitive Array:Completely Polarized Case

更新时间：2025-07-16

- Filtering Performance of Polarization Sensitive Array:Completely Polarized Case
- Acta Electronica Sinica Vol. 32, Issue 8, Pages: 1310-1313(2004)
- 作者机构：
  
  国防科技大学电子科学与工程学院,湖南,长沙,410073
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN820
- Published：2004
- 稿件说明：
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XU Zhen-hai, WANG Xue-song, XIAO Shun-ping, et al. Filtering Performance of Polarization Sensitive Array:Completely Polarized Case[J]. Acta Electronica Sinica, 2004, 32(8): 1310-1313.
DOI：

XU Zhen-hai, WANG Xue-song, XIAO Shun-ping, et al. Filtering Performance of Polarization Sensitive Array:Completely Polarized Case[J]. Acta Electronica Sinica, 2004, 32(8): 1310-1313. DOI：

摘要

本文研究了完全极化情形下极化敏感阵列滤波性能.期望信号和干扰信号来自任意方向

并且任意极化

推导获得阵列最大输出信号干扰噪声比SINR

它是空间匹配系数和极化匹配系数的函数.与普通阵列相比较

极化敏感阵列不仅可以在空域滤波

而且可以在极化域滤波.当干扰和期望信号到达角差别较大时

阵列通过调整方向特性抑制干扰、增强信号;当干扰信号和期望信号到达角接近时

仍然可以利用它们极化状态的差异提高SINR.对于干扰方来讲

要想获得较好的干扰效果

干扰信号必须要和期望信号具有相同的到达角和极化状态.具体的算例结果验证了理论分析的正确性.

Abstract

The filtering performance of polarization sensitive array is investigated theoretically.The desired signal and interference are completely polarized and come from random directions.We obtain the maximal outputting SINR (Signal to Interfere and Noise Ratio)

which is mainly related with the spatial matching coefficient and polarizational matching coefficient between signal and interference.Contrasted to the common antenna array with the same hardware equipment

its advantages are mainly embodied by the joint filter ability in polarizational domain and spatial domain.The interference must come from the same direction and with the same polarization as the desired signal to gain the low SINR.Numerical examples and results verify the correctness of theoretical deduction.

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