Optimal Power Augmentation of LEO-NA Satellites in Power Inversion Adaptive Arrays
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.
Authors
- Wei Xiao (ORCID: https://orcid.org/0000-0001-5660-678X)
- Zukun Lu (ORCID: https://orcid.org/0000-0003-3277-0504)
- Zhihao Xue
- Shaojie Ni (ORCID: https://orcid.org/0000-0002-4863-5182)
- Chenglong Li (ORCID: https://orcid.org/0000-0003-3261-5619)
- Xiaoyu Zhao (ORCID: https://orcid.org/0000-0001-8256-1095)
Institutions
- National University of Defense Technology (CN)
Publication Details
- Journal
- IEEE Communications Letters
- Published
- 2025-06-11
- DOI
- https://doi.org/10.1109/lcomm.2025.3578854
- Primary Topic
- Satellite Communication Systems
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China