@inproceedings{Adilson2012Electronicb,

title = {A New Architecture for Malicious Interference Mitigation in GPS Signals},

author = {Adilson Chinatto and Cynthia Junqueira and Jo\~{a}o M T Romano},

url = {https://www.sige.ita.br/edicoes-anteriores/2012/st/IX_1.pdf},

year  = {2012},

date = {2012-01-01},

booktitle = {Simp\'{o}sio de Aplica\c{c}\~{o}es Operacionais em \'{A}reas de Defesa 2012 (SIGE2012)},

abstract = {A new architecture for malicious jammer mitigation in GPS signals is proposed. The technique employs a smart antenna array followed by a signal-to-noise ratio (SNR) in discriminator. The architecture provides good results jamming scenarios in which a malicious jammer runs at exact GPS frequency and carries a data stream spread by a valid Gold code. Here, direction of arrival (DOA) estimation is provided by a high resolution eigenstructure and a null steering beamforming beacons a null towards the malicious jammer source. A post-beamforming SNR discriminator, fed by the resultant array output signal, discards ones whose SNR after despread process overcomes a determined theoretical threshold, ensuring additional interference suppression. The results show the efficiency of the proposed methodology in terms of probability of tracking error in function of the DOA displacement between the malicious jammer and the GPS desired signal.},

keywords = {Electronic Warfare, GPS, smart antenna array},

pubstate = {published},

tppubtype = {inproceedings}

}