Abstract
The BeiDou system (BDS) plays a significant role in people’s lives, but its security is easily affected by spoofing attacks. The radio determination satellite service (RDSS) is a special service of BDS that provides two-way communication, positioning, and timing services independently of the traditional radio navigation satellite service (RNSS). It can additionally be combined with RNSS to provide a comprehensive RDSS (CRDSS) service. In RDSS, after receiving a signal from the master station, the user needs to send a response signal back to the master station through a satellite. Therefore, the RDSS signal is difficult to spoof. In this study, based on the security feature of RDSS signals, an anti-spoofing method based on CRDSS is proposed to detect and mitigate spoofing attacks, verifying the advantages of the BeiDou system over other satellite navigation systems.
Highlights
With the development of the global navigation satellite system (GNSS), satellite navigation security issues have become increasingly significant
This study proposes an anti-spoofing method based on comprehensive RDSS (CRDSS)
Measurements grouping based on CRDSS This study proposes a grouping algorithm based on CRDSS
Summary
With the development of the global navigation satellite system (GNSS), satellite navigation security issues have become increasingly significant. Under the conventional receiver architecture, this method can detect spoofing attacks and verify the correctness of the positioning results. Under a multipeak acquisition and tracking architecture, this method can group authentic and spoofing measurements and recover correct results under spoofing attacks. In an RNSS/RDSS dual-mode receiver, the proposed anti-spoofing method can detect and mitigate spoofing attacks that aim at either civilian or military signals without the use of any additional hardware.
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