Spoofing interference suppression using space-time process for GNSS receiver

Guo, Yang; Fan, Ming; Kong, Min

doi:10.1109/cisp.2012.6469665

Cited by 5 publications

(1 citation statement)

References 2 publications

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“…After determining the direction of the spoofing, the spoofing can be eliminated or suppressed. A new approach [23] has also been proposed combing a generalized side-lobe canceller (GSC) and space-time adaptive faltering (which is used to suppress spoofing). In addition, an encryption algorithm based on a signal's authentication sequence has been analyzed that can resist a spoofing signal's attack [24,25], but the signal format needs to be modified, as it is not suitable for the GNSS civil navigation signal that has been applied at present.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Spoofing Suppression Algorithm for GNSS Based on Multiple Antennas Array

Fan

Gan

et al. 2020

Sensors

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The signals of navigation satellites are easily affected by spoofing interference, causing the wrong position, speed or Universal Time Coordinate of the receiver to be calculated. Traditional detection and suppression algorithms are used only to eliminate the spoofing signals, which may lead to an insufficient number of satellites for positioning. An adaptive spoofing suppression algorithm (ASSA) based on a multiple antenna array is proposed in this study. The ASSA can use the cross-correlation gain of multiple antenna array to adaptively generate nulling and realize the simultaneous suppression of multiple spoofing signals. Moreover, ASSA does not need to capture and track spoofing separately, thus reducing the complexity of implementation and calculation. Experiments were conducted to verify the proposed system under different conditions, and the results show that ASSA can suppress multiple spoofings with little impact on positioning performance. Under the condition of spoofing, ASSAs were (2.22 m, 2.41 m, 4.43 m) in the static test and (2.27 m, 2.43 m, 4.64 m) in the kinematic test, which are good positioning performances for both. In addition, the ASSA is applied before capturing signals, which is beneficial to identifying and eliminating spoofing earlier and faster.

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Section: Introductionmentioning

confidence: 99%