基于矩阵完成和传播器方法的快速2D-DOA估计与对任意EMVS阵列的噪声抑制
1The Electronic Information and Electrical Engineering College, Yangtze University, Jingzhou 434023, China.
本研究提出了一种快速算法,用于使用电磁向量传感器 (EMVS) 阵列估计二维到达方向 (2D-DOA),即使是随机排列和非均噪声. 该方法有效地消除噪音,重建数据,并准确估计2D-DOA,优于现有技术.
科学领域:
- 信号处理 信号处理
- 电磁学 电磁学 电磁学 电磁学
- 阵列信号处理 阵列信号处理
背景情况:
- 到达方向 (DOA) 估计对于雷达和无线通信等应用至关重要.
- 不均的噪音和随机传感器安排对传统的DOA估计算法构成重大挑战.
- 在这些不利条件下,像ESPRIT这样的现有方法往往在准确性和速度方面扎.
研究的目的:
- 使用随机排列的电磁向量传感器 (EMVS) 阵列开发用于2D-DOA估计的快速和强大的算法.
- 为应对不均噪声环境带来的挑战.
- 与传统技术相比,提高DOA估计的准确性和计算效率.
主要方法:
- 信号矩阵共变的形成.
- 基于非均的噪声特征去除受噪声影响的元件.
- 填充和重建共变矩阵的矩阵完成.
- 使用传播器方法 (PM) 进行信号子空间提取.
- 通过类似于ESPRIT的技术进行2D-DOA估计.
主要成果:
- 拟议的算法展示了高度的自由,低计算复杂性和准确的估计.
- 模拟证实了对非均噪声的显著弹性.
- 该算法在估计速度和准确性方面都超过了ESPRIT,ESPRIT类型和改进的ESPRIT (IESPRIT).
结论:
- 开发的快速算法为2D-DOA估计提供了强大的解决方案,在非均噪声中随机排列EMVS数组.
- 该方法在性能上比现有算法提供了实质性的改进,特别是在速度和准确性方面.
- 这项创新在先进的雷达,声纳和通信系统中具有潜在的应用,这些系统需要精确的空间定位.
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