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Massive MIMO for Multi-LEO Satellite Positioning

delete2025-12-26
delete0
PRE
AI
H
Haoyue Li
李
李悠 (Li You)
H
H. Zhou
Y
Yuanshuo Wang
F
Fan Jiang
X
Xiqi Gao
DOI：10.1109/LWC.2025.3640615delete
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摘要

摘要

En 中文
大规模多输入多输出（MIMO）与多颗低地球轨道（LEO）卫星的集成，通过利用前者的超高角分辨率，实现了泛在定位。基于此特性，我们提出了一种适用于大规模MIMO多LEO卫星系统的基于角度的定位方法，该方法无需依赖卫星与用户时钟之间的精确同步。具体而言，利用高度信息作为先验知识，我们推导了位置误差界（PEB），并提出了一种两步定位方法：首先，通过波束空间张量-ESPRIT算法获取估计的信道参数；然后，在高度约束下，我们构建一个流形优化问题，利用角度信息推导用户终端的位置。仿真结果表明，所提出的方案在大规模MIMO多LEO卫星定位系统中达到了令人满意的估计性能。
Keyword:
Multi-LEO satellites
massive MIMO
PEB
positioning
manifold optimization

期刊

I
IEEE Wireless Communications Letters
IF:
5.5
论文数:
867
被引数:
0

机构

P
Peng Cheng Laboratory
学者数:
1.7K
论文数: 1.8K
被引数: 2.0K
S
Southeast University
学者数:
2.1W
论文数: 8.6K
被引数: 480
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