无线电工程2024，Vol.54Issue(8)：2002-2009,8.DOI:10.3969/j.issn.1003-3106.2024.08.019
超宽带共形极化敏感阵DOA-极化估计算法及优化
DOA-polarization Estimation Algorithm and Optimization for Ultra-wideband Conformal Polarization Sensitive Array
孙家霖 1王文伟 1吕胜杰 2程光磊 2高火涛 1向艳杰3
作者信息
- 1. 武汉大学 电子信息学院,湖北武汉 430073
- 2. 国家广播电视总局2021台,黑龙江齐齐哈尔 161006
- 3. 鸣飞伟业技术有限公司,湖北武汉 430070
- 折叠
摘要
Abstract
A dimension-reduced Multiple Signal Classification(MUSIC)algorithm for joint estimation of Direction of Arrival(DOA)and polarization angle is proposed for ultra-wideband conformal polarization sensitive array.According to Monte-Carlo simulation results,the DOA estimation performance decreases at low frequencies,which cannot meet the requirements of signal direction finding.In order to solve this problem,the virtual extended array method is used to optimize the algorithm,and virtual arrays with different extended parameters are constructed to improve the reliability of the algorithm.Simulation results demonstrate that the optimized algorithm can significantly improve the performance of noise immunity and error tolerance of DOA estimation at low frequencies,considerably raising the accuracy of signal direction finding in practical applications.关键词
极化敏感阵列/波达方向估计/极化估计/降维多重信号分类算法/虚拟扩展阵列Key words
polarization sensitive array/DOA estimation/polarization estimation/reduced-dimension MUSIC algorithm/virtual extended array分类
信息技术与安全科学引用本文复制引用
孙家霖,王文伟,吕胜杰,程光磊,高火涛,向艳杰..超宽带共形极化敏感阵DOA-极化估计算法及优化[J].无线电工程,2024,54(8):2002-2009,8.
