Secure Position and Time Information by Server Side PRS Snapshot Processing

Rügamer, Alexander; Rubino, Daniel; Lukcin, Ivana; Taschke, Simon; Stahl, Manuel; Felber, Wolfgang

doi:10.33012/2016.14781

Cited by 11 publications

(7 citation statements)

References 4 publications

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“…The potential to have more compact data streams has significant benefits for digital storage and transmission. Therefore, SDR receivers (Pany, 2010) and snapshot-based receivers (Lucas-Sabola et al, 2016;Rubino et al, 2016;Rügamer et al, 2016) could see significant improvements. Furthermore, restructuring the spectrum may also apply to altering a WB signal's properties.…”

Section: Discussion and Outlookmentioning

confidence: 99%

Advanced and versatile signal conditioning for GNSS receivers using the high‐rate DFT‐based data manipulator (HDDM)

et al. 2021

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Proper signal conditioning is crucial for reliable Global Navigation Satellite System (GNSS) navigation. Signal conditioning includes correcting receiver front-end distortions, shaping noise, removing interferences, and altering the received signal. The high-rate DFT-based data manipulator (HDDM) is a versatile signal processing architecture based on the Discrete Fourier Transform (DFT). In this article, the HDDM is theoretically modeled, analyzed, and evaluated. Some applications are presented, including interference mitigation, spectrum reconstruction, overlay signal design, altering signal modulations, and signal equalization. Additionally, the complexity of one concrete hardware implementation is investigated. The HDDM has shown excellent results with interference mitigation, and it can simultaneously achieve other signal conditioning tasks. Processing several tasks with the same nested architecture provides a significant processing benefit compared to discrete processing architectures. It emphasizes the benefits of a single architecture to simultaneously address several signal condition tasks, as opposed to separate structures requiring significantly more processing or poorer synergy.

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Section: Discussion and Outlookmentioning

confidence: 99%

Advanced and versatile signal conditioning for GNSS receivers using the high‐rate DFT‐based data manipulator (HDDM)

et al. 2021

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“…The exploring PRS low-end receivers (EXPLOR-ERS) program (Turner et al, 2015) is a spreading code authentication proposed for Galileo open service via spreading code of Galileo PRS. It is a communicationassisted authentication system, including two services, called PRS/Open Service Positioning and Authentication (PROSPA) (Turner et al, 2013) and National Space Technology Program (NSTP) Aspire project (ASPIRE) (Rugamer et al, 2016(Rugamer et al, , 2020Turner et al, 2015). The PROSPA sends Galileo PRS spreading code segments to the receiver.…”

Section: Sca Via Military Spreading Codementioning

confidence: 99%

Authenticating GNSS civilian signals: a survey

Yuan

Tang

2023

Satell Navig

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Civilian services of Global Navigation Satellite System are threatened by spoofing attacks since it is hard to determine the authenticity of a navigation signal with a detailed structure open to the public. Signal authentication effectively protects the security of the signal by attaching unforgeable information to one or several elements of the signal. Receivers can verify the authenticity of the signal by extracting and validating this information. Developing good signal authentication schemes requires understanding possible spoofing modes, signal element specialty, and performance evaluation methods. This paper is an overview of navigation signal authentication, where the theories and reported approaches are described in detail. A design/performance matrix that demonstrates the advantages and defects of the signal element and its authentication design is summarized. Recommendations are proposed to improve the robustness, security, efficiency, and implementation hardness for future designs of navigation signal authentication.

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“…Alternative techniques known as server-based SCE GNSS solutions partly overcome such problems, but require a continuously available communication link between user receiver and SCE GNSS server [9].…”

Section: Galileo Os and Prs Spoofing Protectionmentioning

confidence: 99%

Enhanced Robustness and Spoofing Resistance by Galileo PRS Processing

Rügamer

Garzia

Meister

et al. 2020

2020 European Navigation Conference (ENC)

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This paper presents and discusses some of the enhancements in robustness against jamming and spoofing using unique features of the cryptographically protected Galileo PRS signals. Different techniques exploiting these PRS properties have been implemented and evaluated on the German national PRS test receiver (PROOF). It is shown that the used HDDM interference mitigation method is already as good as the stateof-the-art in high-end GNSS receivers for OS signals. Then the benefits of cryptographically protected signals are discussed with a demonstration how trusted PRS signals can be used to detect and mitigate spoofing attacks also in comparison to one potential Open Service Navigation Message Authentication (OS-NMA) configuration.

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Secure Position and Time Information by Server Side PRS Snapshot Processing

Cited by 11 publications

References 4 publications

Advanced and versatile signal conditioning for GNSS receivers using the high‐rate DFT‐based data manipulator (HDDM)

Advanced and versatile signal conditioning for GNSS receivers using the high‐rate DFT‐based data manipulator (HDDM)

Authenticating GNSS civilian signals: a survey

Enhanced Robustness and Spoofing Resistance by Galileo PRS Processing

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