3Humphreys T E, Ledvina B M, Psiaki M L, et al. Assessing the Spoofing Threat:Development of a Portable GPS Civilian Spoofer [C]//Proceeding of the 21st International Technical Meeting of the SatelUite Division of the Institute of Navigation ,Savanna, GA , September 16-19, 2008: 2314-2325.
4Shepard D P, Bhatti J A, Humphreys T E. Evaluation of Smart Grid and Civilian UAV Vulnerability to GPS Spoofing Attacks[C]//Proceedings of the 25th International Technical Meeting of the Satellite Division of the Institute of Navigation (2012 ION GNSS), Nashville, Tennessee Nashville, TN, September 2012:3591-3605.
5Jafamia-Jahromi A, Broumandan A, Nielsen J, et al. GPS Vulnerbility to Spoofing Threats and a Review of Anti- spoofing Techniques[J]. International Journal of Navigation and Observation, 2012(1):1-16.
6Lei Dong, IF GPS Signal Simulator Development and Ver-ification[D].Calgary, Alberta: University of Calgary, 2003.
