Partially Polarized Signal Detection Using Polarization Sensitive Array

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

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Partially Polarized Signal Detection Using Polarization Sensitive Array

更新时间：2025-07-16

- Partially Polarized Signal Detection Using Polarization Sensitive Array
- Acta Electronica Sinica Vol. 32, Issue 6, Pages: 938-941(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 Online：25 June 2004，
  
  Published：2004
- 稿件说明：
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XU Zhen-hai, WANG Xue-song, XIAO Shun-ping, et al. Partially Polarized Signal Detection Using Polarization Sensitive Array[J]. Acta Electronica Sinica, 2004, 32(6): 938-941.
DOI：

XU Zhen-hai, WANG Xue-song, XIAO Shun-ping, et al. Partially Polarized Signal Detection Using Polarization Sensitive Array[J]. Acta Electronica Sinica, 2004, 32(6): 938-941. DOI：

摘要

首次深入研究了基于极化敏感阵列的部分极化信号检测问题.建立了部分极化信号检测模型;在高斯分布假设条件下

利用矩阵特征分解求得似然比统计检验量

并给出了最优检测器的结构框图;推导求得统计检验量的概率密度函数

根据N-P准则求得检测器的检测性能;进一步利用上述理论结果分析了结构噪声背景下检测器的检测性能

分析了信号极化度、干扰强度、干扰极化度以及干扰到达角等因素对检测器检测性能的影响.

Abstract

The partially polarized signal detection is investigated for the first time based on the polarization sensitive array.The signal detection is modeled by the binary hypothesis test.Under Gaussian distribution

the likelihood ratio is obtained by exploiting the matrix eigendecomposition.The detecting scheme is presented according to the statistical test.The probability distribution function is acquired under the null hypothesis and the alternative hypothesis respectively.According to the Neyman-Pearson rule

the probability of detection is calculated at a certain probability of alarm.Furthermore

especially

the detection performance is analyzed under structured noise.How the factors affect the detection performance is drawn from a series of numerical examples

such as the polarization degree of signal

the Interference to Noise Ratio

the polarization degree of interference and the arrival angle of interference.

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