阵列天线抑制欺骗式导航干扰信号方法研究
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摘要
针对欺骗式干扰影响飞行器卫星导航信号后引起的定位测姿错误问题,提出了一种适用于飞行器导航的基于阵列天线的欺骗式干扰检测和消除方法.使用接收阵列天线的载波相位双差测量值作为干扰检测依据,通过载波相位单差测量方程求出干扰信号的方向矢量,给出了提高干扰方向测量精度的方法,并使用其正交向量在干扰方向形成零陷,同时通过调整波束指向,在待测信号方向形成阵列增益,以达到抗干扰和增强导航信号的目的.使用这种方法可以对导航信号中的欺骗式干扰信号进行有效的识别和消除,适用于复杂环境下的飞行器导航.
In order to solve the problem of positioning errors caused by spoofing to the satellite navigation signals,a spoofing detection and elimination method based on antenna array is proposed. The carrier phase double difference measurement value of the receiving antenna array is used as the basis for interference detection. The direction vector of the spoofing is obtained by the single difference measurement value of the carrier phase. A method for improving the precision of the spoofing's direction is proposed too. The orthogonal vector is used to form a nulling in the direction of spoofing. By adjusting the beam direction,the array gain is formed in the direction of the signal to be measured,so as to achieve the purpose of resisting interference and enhancing the navigation signal at the same time. Using this method can effectively identify and eliminate the spoofing in the navigation signal,which is suitable for aircraft navigation in complex environment.
In order to solve the problem of positioning errors caused by spoofing to the satellite navigation signals,a spoofing detection and elimination method based on antenna array is proposed. The carrier phase double difference measurement value of the receiving antenna array is used as the basis for interference detection. The direction vector of the spoofing is obtained by the single difference measurement value of the carrier phase. A method for improving the precision of the spoofing's direction is proposed too. The orthogonal vector is used to form a nulling in the direction of spoofing. By adjusting the beam direction,the array gain is formed in the direction of the signal to be measured,so as to achieve the purpose of resisting interference and enhancing the navigation signal at the same time. Using this method can effectively identify and eliminate the spoofing in the navigation signal,which is suitable for aircraft navigation in complex environment.
引文
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[12]PSIAKI M L,O'HANLON B W,BHATTI J A,et al.GPS spoofing detection via dual-receiver correlation of military signals[J].IEEE Transactions on Aerospace&Electronic Systems,2013,49(4):2250-2267.
[13]DANESHMAND S,JAHROMI A J,BROUMANDAN A,et al.GNSS space-time interference mitigation and attitude determination in the presence of interference signals[J].Sensors,2014,15(6):12180-204.
[14]CHIEN Y R.Design of GPS anti-jamming systems using adaptive notch filters[J].IEEE Systems Journal,2015,9(2):451-460.
[15]MAGIERA J,KATULSKI R.Detection and mitigation of GPS spoofing based on antenna array processing[J].Journal of Applied Research&Technology,2015,11(13):45-57.
[16]王鼎,吴瑛.基于均匀圆阵的二维ESPRIT算法研究[J].通信学报,2006,27(9):89-95.WANG Ding,WU Ying.2-D ESPRIT algorithm research based on uniform circular array[J].Journal on Communications,2006,27(9):89-95.(in Chinese)
[2]PSIAKI M L,O'HANLON B W,POWELL S P,et al.GNSS spoofing detection using two-antenna differential carrier phase[J].Programme&Abstracts the Volcanological Society of Japan,2014,2010(5):342-344.
[3]MONTGOMERY P Y,HUMPHREYS T E,LEDVINA B M.Receiver-autonomous spoofing detection:Experimental results of a multi-antenna receiver defense against a portable civil GPS spoofer[J].Proceedings of the International Technical M eeting of the Institute of Navigation Itm,2009,1(1):124-130.
[4]DANESHMAND S,JAFARNIA-JAHROMI A,BROUM ANDON A,et al.A low-complexity GPS anti-spoofing method using a multi-antenna array[J].Proceedings of International Technical M eeting of the Satellite Division of the Institute of Navigation,2012,137(1):1233-1243.
[5]靳文瑞.基于GNSS的多传感器融合实时姿态测量技术研究[D].上海交通大学,2009.10-25.JIN WENRUI.M ulti-sensor fusion for real-time attitude determination utilizing global navigation satellite system[D].Shanghai Jiao Tong University,2009.10-25.(in Chinese)
[6]KONOVALTSEV A,BASTA N,GREDA L A,et al.Calibration of adaptive antennas in satellite navigation receivers[A].European Conference on Antennas and Propagation[C].Barcelona,Spain.DLR,2010.1-5.
[7]KOZLOV A,GOLOVAN A,NIKULIN A.Combined least squares and Kalman approach in determination of attitude using carrier phase GPS/GLONASS observations[A].International Conference on Recent Advances in Space Technologies[C].Istanbul,Turkey,2013.247-250.
[8]许江宁,朱涛,卞鸿巍.GPS姿态测量技术综述[J].海军工程大学学报,2003,15(3):17-22.XU Jiangning,ZHU Tao,BIAN Hongwei.Reviewon GPS attitude determination[J].Journal of Naval University of Engineering,2003,15(3):17-22.(in Chinese)
[9]韩广.干涉仪快速测向算法的研究与实现[D].解放军信息工程大学,2010.30-39.HAN GUANG.Research and realization of correlation interferometer fast direction finding algorithm[D].PLA Information Engineering University,2010.30-39.(in Chinese)
[10]MAGIERA J,KATULSKI R.Accuracy of differential phase delay estimation for GPS spoofing detection[A]International Conference on Telecommunications and Signal Processing[C].Rome,Italy,2013.695-699.
[11]MAGIERA J,KATULSKI R.ZHANG Y D,Amin M G.Anti-jamming GPS receiver with reduced phase distortions[J].IEEE Signal Processing Letters,2012,19(10):635-638.
[12]PSIAKI M L,O'HANLON B W,BHATTI J A,et al.GPS spoofing detection via dual-receiver correlation of military signals[J].IEEE Transactions on Aerospace&Electronic Systems,2013,49(4):2250-2267.
[13]DANESHMAND S,JAHROMI A J,BROUMANDAN A,et al.GNSS space-time interference mitigation and attitude determination in the presence of interference signals[J].Sensors,2014,15(6):12180-204.
[14]CHIEN Y R.Design of GPS anti-jamming systems using adaptive notch filters[J].IEEE Systems Journal,2015,9(2):451-460.
[15]MAGIERA J,KATULSKI R.Detection and mitigation of GPS spoofing based on antenna array processing[J].Journal of Applied Research&Technology,2015,11(13):45-57.
[16]王鼎,吴瑛.基于均匀圆阵的二维ESPRIT算法研究[J].通信学报,2006,27(9):89-95.WANG Ding,WU Ying.2-D ESPRIT algorithm research based on uniform circular array[J].Journal on Communications,2006,27(9):89-95.(in Chinese)