Title
Spoofing Detection and Mitigation in a Multi-correlator GPS Receiver Based on the Maximum Likelihood Principle.
Abstract
As a structural interference, spoofing is difficult to detect by the target receiver while the advent of a repeater makes the implementation of spoofing much easier. Most existing anti-spoofing methods are merely capable of detecting the spoofing, i.e., they cannot effectively remove counterfeit signals. Therefore, based on the similarities between multipath and spoofing, the feasibility of applying multipath mitigation methods to anti-spoofing is first analyzed in this paper. We then propose a novel algorithm based on maximum likelihood (ML) estimation to resolve this problem. The tracking channels with multi-correlators are constructed and a set of corresponding steps of detecting and removing the counterfeit signals is designed to ensure that the receiver locks the authentic signals in the presence of spoofing. Finally, the spoofing is successfully executed with a software receiver and the saved intermediate frequency (IF) signals, on this basis, the effectiveness of the proposed algorithm is verified by experiments.
Year
DOI
Venue
2019
10.3390/s19010037
SENSORS
Keywords
Field
DocType
repeater,anti-spoofing,ML estimation,multi-correlators,detecting and removing the counterfeit signals
Multipath propagation,Spoofing attack,Intermediate frequency,Communication channel,Electronic engineering,Real-time computing,Multipath mitigation,Interference (wave propagation),Engineering,Counterfeit,Repeater
Journal
Volume
Issue
ISSN
19
1.0
1424-8220
Citations 
PageRank 
References 
0
0.34
3
Authors
3
Name
Order
Citations
PageRank
Yanbing Guo100.68
Lingjuan Miao225.51
Xi Zhang311.11