波形分集阵雷达抗欺骗式干扰技术
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摘要
本文从单基地雷达抗干扰的应用需求出发,分析了现有单基地雷达体制抗干扰的现状以及面临的困难.针对欺骗式干扰对抗的难题,提出了基于新体制波形分集阵雷达的抗主瓣方向欺骗式干扰思路,利用频率分集阵(Frequency Diverse Array,FDA)多输入多输出(Multiple-Input Multiple-Output,MIMO)雷达发射维自由度,实现真实目标和转发假目标在发射维度的区分,在部分先验知识的条件下,初步论证了FDA-MIMO雷达抗欺骗式干扰特别是主瓣欺骗式干扰的可行性.同时考虑转发式欺骗干扰在时间维的伪随机特性,提出了基于多假设检验的干扰样本挑选方法,大大提高了干扰协方差矩阵的估计性能.最后给出了FDA-MIMO雷达抗主瓣欺骗式干扰的分析与仿真结果.
This work is motivated by the increasing demand on anti-jamming techniques in radar systems.The current challenging issues on the anti-jamming task in conventional radar frameworks are outlined. Focused on deceptive jamming countermeasure issue,a novel framework,referred to as waveform diverse array(WDA) radar,is proposed to address the anti-jamming problem.Utilizing the additional degrees-of-freedom(DOFs) in transmit spatial frequency in frequency diverse array(FDA) multiple-input multiple-output(MIMO) radar,the true target and repeated false target can be isolated in the transmit spatial frequency domain.Moreover,this paper investigates the feasibility by using the suggested FDA-MIMO radar to suppress the deceptive jamming signals,even those from the mainlobe direction,with help of some information on true target obtained in earlier detection stage.In consideration of the random distribution of repeated false target in time domain,a jamming signal sample selection approach based on multi-hypothesis test is proposed,which evidently improves the estimation accuracy of jamming covariance matrix.Further analysis and simulation results are provided to confirm the effectiveness of the proposed waveform diverse array technique.
This work is motivated by the increasing demand on anti-jamming techniques in radar systems.The current challenging issues on the anti-jamming task in conventional radar frameworks are outlined. Focused on deceptive jamming countermeasure issue,a novel framework,referred to as waveform diverse array(WDA) radar,is proposed to address the anti-jamming problem.Utilizing the additional degrees-of-freedom(DOFs) in transmit spatial frequency in frequency diverse array(FDA) multiple-input multiple-output(MIMO) radar,the true target and repeated false target can be isolated in the transmit spatial frequency domain.Moreover,this paper investigates the feasibility by using the suggested FDA-MIMO radar to suppress the deceptive jamming signals,even those from the mainlobe direction,with help of some information on true target obtained in earlier detection stage.In consideration of the random distribution of repeated false target in time domain,a jamming signal sample selection approach based on multi-hypothesis test is proposed,which evidently improves the estimation accuracy of jamming covariance matrix.Further analysis and simulation results are provided to confirm the effectiveness of the proposed waveform diverse array technique.
引文
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[15] Eker T,Demir S,Hizal A.Exploitation of linear frequency modulated continuous waveform (LFMCW) for frequency diverse arrays[J].IEEE Transactions on Antennas Propagation,2013,61(7):3546-3553.
[16] 许京伟,朱圣棋,廖桂生,张玉洪.频率分集阵雷达技术探讨[J].雷达学报,2018,7(2):167-182.Xu J,Zhu S,Liao G,Zhang Y.An overview of frequency diverse array radar technology[J].Journal of Radars,2018,7(2):167-182.(in Chinese)
[17] Xu J,Zhu S,Liao G.Space-time-range adaptive processing for airborne radar systems[J].IEEE Sensors Journal,2015,15(3):1602-1610.
[18] Wen C,Peng J,Zhou Y,Wu J.Enhanced three-dimensional joint domain localized STAP for airborne FDA-MIMO radar under dense false-target jamming scenario[J].IEEE Sensors Journal,2018,18(10):4154-4166.
[19] Li Z,Zhang Y,Ge Q,Xue B.A robust deceptive jamming suppression method based on covariance matrix reconstruction with frequency diverse array MIMO radar[A].IEEE International Conference on Signal Processing,Communications and Computing[C].Xiamen,China:IEEE,2017.1-5.
[20] Xu J,Kang J,Liao G,So H.Mainlobe deceptive jammer suppression with FDA-MIMO radar[A].Proceedings of IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM)[C].Sheffield,UK:IEEE,2018.504-508.
[21] Xu J,Liao G,Zhu S,So H.Deceptive jamming suppression with frequency diverse MIMO radar[J].Signal Processing,2015,113:9-17.
[22] Van Trees H L.Detection,Estimation,and Modulation Theory,Part I[M].New York:Wiley-Interscience,2001.
[2] Zhou C,Liu Q,Chen X.Parameter estimation and suppression for DRFM-based interrupted sampling repeater Jammer[J].IET Radar Sonar Navigation,2018,12(1):56-63.
[3] Xiang Z,Chen B,Yang M.Transmitter/receiver polarization optimization based on oblique projection filtering for mainlobe interference suppression in polarimetry multiple-input-multiple-output radar[J].IET Radar Sonar & Navigation,2018,12(1):137-144.
[4] Xiong W,Wang X,Zhang G.Cognitive waveform design for anti-velocity deception jamming with adaptive initial phases[A].Proceedings of IEEE Radar Conference[C].Philadelphia,PA,USA:IEEE,2016.1-5.
[5] Xu J,Liao G,Zhu S,Huang L,So H C.Joint range and angle estimation using MIMO radar with frequency diverse array[J].IEEE Transactions on Signal Processing,2015,63(13):3396-3410.
[6] Xu J,Liao G,So H C.Space-time adaptive processing with vertical frequency diverse array for range-ambiguous clutter suppression[J].IEEE Transactions on Geoscience and Remote Sensing,2016,54(9):5352-5364.
[7] Xu J,Liao G,Zhang Y,Ji H,Huang L.An adaptive range-angle-Doppler processing approach for FDA-MIMO radar using three-dimensional localization[J].IEEE Journal of Selected Topics in Signal Processing,2017,11(2):309-320.
[8] Antonik P.An Investigation of A Frequency Diverse Array[D].UK:University College London,2009.
[9] Antonik P,Wicks M C,Griffiths H D,Baker C J.Frequency diverse array radars[A].Proceedings of IEEE Radar Conference[C].Verona,NY,USA:IEEE,2006.215-217.
[10] Secmen M,Demir S,Hizal A,Eker T.Frequency diverse array antenna with periodic time modulated pattern in range and angle[A].Proceedings of IEEE Radar Conference[C].Boston,MA,USA:IEEE,2007.427-430.
[11] Huang J J,Tong K F,Baker C J.Frequency diverse array:Simulation and design[A].Proceeding of IEEE Radar Conference[C].Pasadena,CA,USA:IEEE,2009.1-4.
[12] Sammartino P F,Baker C J.Developments in the frequency diverse bistatic system[A].Proceedings of IEEE Radar Conference[C].Pasadena,CA,USA:IEEE,2009.1-5.
[13] Sammartino P F,Baker C J,Griffiths H D.Frequency diverse MIMO techniques for radar[J].IEEE Transactions Aerospace Electronic Systems,2013,49(1):201-222.
[14] Wang W Q.Range-angle dependent transmit beampattern synthesis for linear frequency diverse arrays[J].IEEE Transactions on Antennas Propagation,2013,61(8):4073-4081.
[15] Eker T,Demir S,Hizal A.Exploitation of linear frequency modulated continuous waveform (LFMCW) for frequency diverse arrays[J].IEEE Transactions on Antennas Propagation,2013,61(7):3546-3553.
[16] 许京伟,朱圣棋,廖桂生,张玉洪.频率分集阵雷达技术探讨[J].雷达学报,2018,7(2):167-182.Xu J,Zhu S,Liao G,Zhang Y.An overview of frequency diverse array radar technology[J].Journal of Radars,2018,7(2):167-182.(in Chinese)
[17] Xu J,Zhu S,Liao G.Space-time-range adaptive processing for airborne radar systems[J].IEEE Sensors Journal,2015,15(3):1602-1610.
[18] Wen C,Peng J,Zhou Y,Wu J.Enhanced three-dimensional joint domain localized STAP for airborne FDA-MIMO radar under dense false-target jamming scenario[J].IEEE Sensors Journal,2018,18(10):4154-4166.
[19] Li Z,Zhang Y,Ge Q,Xue B.A robust deceptive jamming suppression method based on covariance matrix reconstruction with frequency diverse array MIMO radar[A].IEEE International Conference on Signal Processing,Communications and Computing[C].Xiamen,China:IEEE,2017.1-5.
[20] Xu J,Kang J,Liao G,So H.Mainlobe deceptive jammer suppression with FDA-MIMO radar[A].Proceedings of IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM)[C].Sheffield,UK:IEEE,2018.504-508.
[21] Xu J,Liao G,Zhu S,So H.Deceptive jamming suppression with frequency diverse MIMO radar[J].Signal Processing,2015,113:9-17.
[22] Van Trees H L.Detection,Estimation,and Modulation Theory,Part I[M].New York:Wiley-Interscience,2001.