Navigation signal authentication schemes are effective methods to protect civilian receivers against spoofing attacks by providing unforgeable information to verify the authenticity of signals. In this paper Cross-Correlation based Spreading Code Authentication, or CC-SCA, is proposed to authenticate GNSS civilian signals at high time resolution with small storage requirement. CC-SCA employs a cryptographically generated authentication spreading code punctured into public spreading code in civilian signals. Since initial code phases of authentication spreading code are different and derived from security code, a correlation peak can be detected and authenticated in the cross-correlation between baseband signals of different satellites. According to this principle, signal structure and authenticable receiver architecture are proposed while performance metrics and the selection of parameters are analysed. Finally, this scheme is demonstrated with a specific implementation and parameter selection for Beidou B1C civilian signals.
Cross-Correlation Based Spreading Code Authentication Scheme for Civil GNSS Signals
Lect. Notes Electrical Eng.
China Satellite Navigation Conference ; 2022 ; Beijing, China May 22, 2022 - May 25, 2022
China Satellite Navigation Conference (CSNC 2022) Proceedings ; Chapter : 43 ; 503-514
2022-05-10
12 pages
Article/Chapter (Book)
Electronic Resource
English
Navigation signal authentication , Spreading code authentication , Cross-correlation , Authentication implementation Engineering , Communications Engineering, Networks , Signal, Image and Speech Processing , Aerospace Technology and Astronautics , Control, Robotics, Mechatronics , Computer Applications , Geography, general
Joint Code and Carrier Correlation for GNSS Signals with Peak Sharpening
British Library Conference Proceedings | 2015
|Spreading Code Selection Criteria for the future GNSS Galileo
British Library Conference Proceedings | 2005
|A Class of SLCE-Based Spreading Codes for GNSS Use
IEEE | 2013
|