A Spatial-Temporal Approach Based on Antenna Array for GNSS Anti-Spoofing

Author:

Zhao Yuqing,Shen Feng,Xu Guanghui,Wang Guochen

Abstract

The presence of spoofing signals poses a significant threat to global navigation satellite system (GNSS)-based positioning applications, as it could cause a malfunction of the positioning service. Therefore, the main objective of this paper is to present a spatial-temporal technique that enables GNSS receivers to reliably detect and suppress spoofing. The technique, which is based on antenna array, can be divided into two consecutive stages. In the first stage, an improved eigen space spectrum is constructed for direction of arrival (DOA) estimation. To this end, a signal preprocessing scheme is provided to solve the signal model mismatch in the DOA estimation for navigation signals. In the second stage, we design an optimization problem for power estimation with the estimated DOA as support information. After that, the spoofing detection is achieved by combining power comparison and cross-correlation monitoring. Finally, we enhance the genuine signals by beamforming while the subspace oblique projection is used to suppress spoofing. The proposed technique does not depend on external hardware and can be readily implemented on raw digital baseband signal before the despreading of GNSS receivers. Crucially, the low-power spoofing attack and multipath can be distinguished and mitigated by this technique. The estimated DOA and power are both beneficial for subsequent spoofing localization. The simulation results demonstrate the effectiveness of our method.

Funder

National Natural Science Foundation of China

Publisher

MDPI AG

Subject

Electrical and Electronic Engineering,Biochemistry,Instrumentation,Atomic and Molecular Physics, and Optics,Analytical Chemistry

Cited by 6 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Robust Spoofing Detection for GNSS Array Receivers Using the Auxiliary Reference Element Method;IEEE Sensors Journal;2024-05-01

2. Method and Verification of Interference Suppression for Beidou Satellite Forwarding Based on Array Antennas;2023 9th International Conference on Computer and Communications (ICCC);2023-12-08

3. INS-Aided Multi-Antenna GNSS Carrier Phase Double Difference Spoofing Detection;IEEE Access;2023

4. Research on GNSS Spoofing Mitigation Technology Based on Spoofing Correlation Peak Cancellation;IEEE Communications Letters;2022-12

5. UAVDome - Safe UAV Transportation;2022 IEEE 7th International Conference on Intelligent Transportation Engineering (ICITE);2022-11-11

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