Optimal Power Augmentation of LEO-NA Satellites in Power Inversion Adaptive Arrays

IF 4.4 3区计算机科学 Q2 TELECOMMUNICATIONS

IEEE Communications Letters Pub Date : 2025-06-11 DOI:10.1109/LCOMM.2025.3578854

Zhihao Xue;Zukun Lu;Xiaoyu Zhao;Wei Xiao;Chenglong Li;Shaojie Ni

引用次数: 0

Abstract

In low earth orbit navigation augmentation (LEO-NA) systems, the power inversion (PI) adaptive arrays tend to misidentify LEO-NA signals as interference and thus suppress them. However, the impact of this suppression phenomenon has not been sufficiently investigated. This letter presents an analysis of the suppression mechanism affecting LEO-NA signals in PI adaptive arrays and proposes a theoretical model to quantify its impact. Based on the proposed model and the maximum signal-to-interference-plus-noise ratio (MSINR) criterion, the optimal power augmentation for LEO-NA signals can be determined in a fixed scenario. Both theoretical analysis and experimental results demonstrate that the optimal power augmentation level is approximately 23.9 dB for a LEO-NA signal operating at the B3I frequency in a single-satellite augmentation configuration.

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功率反转自适应阵列中LEO-NA卫星的最优功率增强

在近地轨道导航增强（LEO-NA）系统中，功率反转（PI）自适应阵列容易将LEO-NA信号误认为干扰，从而对其进行抑制。然而，这种抑制现象的影响还没有得到充分的研究。本文分析了PI自适应阵列中影响LEO-NA信号的抑制机制，并提出了一个量化其影响的理论模型。基于该模型和最大信噪比（MSINR）准则，可以确定固定场景下LEO-NA信号的最优增强功率。理论分析和实验结果表明，在单卫星增强配置下，工作在B3I频率的LEO-NA信号的最佳功率增强水平约为23.9 dB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Communications Letters 工程技术-电信学

CiteScore

8.10

自引率

7.30%

发文量

590

审稿时长

2.8 months

期刊介绍： The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.