Abstract
Abstract - This paper considers a GPS anti-spoofing problem. Spoofing is an intentional interference that mislead the GNSS receiver. The spoofing attack is very significant since the target receiver is not aware of being attacked from spoofing. Accelerometers can be used to detect the spoofing signal by being compared with the acceleration obtained from GPS information using Kalman filter. In this paper we propose an N by N-point average and M-point window algorithm to detect GPS spoofing by using accelerometers and GPS outputs. The performance of the proposed algorithm is analyzed using actual vehicle trajectory and spoofing trajectory generated from INS and GPS toolbox for simulation. Key Words : GPS, Anti-spoofing, Accelerometer, Kalman filter†Corresponding Author : School of Electrical and Electronics Engineering, Chung-Ang University, Korea.E-mail : dshim@cau.ac.kr*School of Electrical and Electronics Engineering, Chung-Ang University, Korea.Received : July 07, 2014; Accepted : August 19, 2014
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