不统一多普勒提取增强的多通道广泛取消算法,用于使用卫星信号的被动雷达
Hongwei Fu1, Zhang Zhang2, Yu Luo1
1School of Electronic Engineering, Naval University of Engineering, Wuhan, 430000, China.
Scientific reports
|August 13, 2025
概括
这项研究引入了一种新的基于太空的被动雷达 (PR) 系统,使用卫星信号来增强目标检测. 一个新的算法,NuDE-mECA,有效地抑制杂乱,同时保持低速目标检测能力.
科学领域:
- 电气工程 电气工程
- 航空航天工程 航空航天工程
- 信号处理 信号处理
背景情况:
- 被动雷达 (PR) 使用现有的非合作信号来检测和跟踪目标.
- 现有的地面PR覆盖范围有限,而中高轨道空间PR的接收功率不足.
- 低轨道卫星信号提供全球覆盖,但由于双重运动而导致多路径杂乱扩大,这带来了挑战.
研究的目的:
- 提出一个利用卫星信号的基于太空的被动雷达 (PR) 系统.
- 开发一种先进的算法,以缓解基于太空的PR中的多路径杂乱扩展.
- 为了增强检测范围和保持低速度目标检测能力.
主要方法:
- 实施一个利用Iridium卫星通信信号的公关系统.
- 关于非统一多普勒提取增强多通道广泛取消算法的建议和应用 (NuDE-mECA).
- 对NuDE-mECA与传统的多通道ECA和统一的多普勒提取方法进行比较分析.
主要成果:
- 拟议的基于的PR系统显示了改进的检测范围和模两可的功能.
- NuDE-mECA有效地抑制了由卫星和接收器运动引起的多路径杂乱扩大.
- 与现有方法相比,NuDE-mECA显示了显著降低的计算复杂性.
- 该算法保持了对近距离,低速度目标的检测能力.
结论:
- 卫星信号是基于太空的被动雷达应用的可行来源.
- NuDE-mECA为基于太空的PR提供了卓越的杂乱抑制和计算效率.
- 这些发现支持开发轻量级,高精度的基于太空的公关系统.
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