A Proposed Navigation Message Authentication Implementation For Civil Gps Anti-Spoofing

Kyle D Wesson, M Rothlisberger,Todd E Humphreys

PROCEEDINGS OF THE 24TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION (ION GNSS 2011)（2011）

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摘要

A specific implementation of navigation message authentication (NMA) for civil GPS anti-spoofing is proposed. The notion of GNSS signal authentication is defined in probabilistic terms. This work proposes a practical, backward-compatible NMA strategy for the civil L2/L5 civil navigation (CNAV) message. The proposal is sufficiently detailed to facilitate near-term implementation of security-hardened civil GPS.

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