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基于FRFT的雷达／电子战一体化系统干扰抑制方法 被引量：3

Interference Suppression Technique in Radar and EW Integrated System Based on Fractional Fourier Transform
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摘要 为改善基于噪声-线性频率调制(NLFM)一体化波形的雷达/电子战一体化系统在线性调频(LFM)信号干扰环境下的目标探测能力,提出了采用分数阶Fourier变换(FRFT)抑制LFM信号干扰的方法。分析了NLFM信号和LFM信号在分数阶Fourier域时频聚集性的差别,研究了干扰滤波器的实现方法,比较了不同干扰抑制滤波器的性能差异。仿真结果表明,自适应加权阈值限幅滤波可有效改善一体化系统接收机的输出信干比,且受线性调频斜率测量误差的影响较小。 To improve the detection capability of radar and EW integrated system based on Noise-Linear Frequency Modulation （NLFM） integrated waveform in Linear Frequency Modulation （LFM） jamming environment, a jamming suppression method in fractional Fourier domain is presented. The difference of time-frequency properties in fractional Fourier domain between LFM and NLFM signals is investigated, the implementation method of jamming suppression filter is introduced and the performances of different filters are compared. Analysis and simulation indicate that the adaptive weighting threshold limiter can effectively improve the output signal-jamming-ratio, and the slope error of linear frequency modulation has less effect on the performance of the limiter.
作者 张新相 齐子忠 陈天麒
机构地区 电子科技大学电子工程学院 空军装备研究院雷达所
出处 《电子测量与仪器学报》 CSCD 2008年第5期27-32,共6页 Journal of Electronic Measurement and Instrumentation
关键词 雷达 电子战 一体化波形 分数阶FOURIER变换 干扰抑制 radar, Electronic Warfare （ EW ） , integrated waveform, fractional Fourier transform, jamming suppression.
分类号 TN911 [电子电信—通信与信息系统]
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参考文献9

  • 1TAVIK G C, HILTERBRICK C L. The advanced multifunction RF concept [ J]. IEEE Transactions on Microwave Theory and Techniques, 2005, 53 ( 3 ) : 1009 - 1020.
  • 2XU C C, CHEN T Q. Conception of signal sharing in integrated radar and jammer system and the integrated signal design[C]. ICCCAS 2002, Chengdu, 2002:502 - 505.
  • 3ZHANG X X, CHEN T Q. Noise-linear frequency modulation shared waveform for integrated radar and jammer system[ C]. ICCCAS 2007, Fukuoka, Japan, 2007:644 - 648.
  • 4NAMIAS V. The fractional Fourier transform and its application in quantum mechanics[J]. J. Inst. Math. Appl., 1980, 25 (4):241 -265.
  • 5齐林,陶然,周思永,王越.基于分数阶Fourier变换的多分量LFM信号的检测和参数估计[J].中国科学（E辑）,2003,33(8):749-759. 被引量：175
  • 6祝俊,陈兵,唐斌.快速多分量LFM信号的检测与参数估计方法[J].电子测量与仪器学报,2008,22(1):25-29. 被引量：12
  • 7OZAKTAS H M, ANKAN O. Fractional Fourier domains [ J]. Signal Processing, 1995, 46 : 119 - 124.
  • 8OZAKTAS H M, ANKAN O, KUTAY M A, et al. Digital computation of the fractional Fourier transform [ J ]. IEEE Transaction on Signal Processing, 1996, 44 (9): 2141 -2150.
  • 9张淑宁,赵惠昌,吴兵.基于分数阶傅立叶变换的伪码体制引信线性调频干扰抑制技术[J].兵工学报,2006,27(1):32-36. 被引量：20

二级参考文献37

  • 1叶瑞青,沈显祥,唐斌.欠采样超宽带LFM信号参数估计[J].电子科技大学学报,2006,35(2):157-159. 被引量：4
  • 2Boashash B. Estimating and interpreting the instantaneous frequency of a signal. Proc IEEE, 1992, 80(4): 519-569.
  • 3Diuric P M. Kay S M. Parameter estimation of china signal. IEEE Trans on ASSP, 1990, 38(12): 2118-2126.
  • 4Barbarossa S, Petrone V. Analysis of polynomial-phase signals by the integrated generalized ambiguity function. IEEE Trans on SP, 1997, 45(2): 316-327.
  • 5Abatzoglou T J. Fast maximum likelihood joint estimation of frequency and frequency rate. IEEE Trans on AES, 1986, 22(6):708-715.
  • 6Peleg S, Porat B. Linear FM signal parameter estimation from discrete-time observations. IEEE Trans on AES, 1991, 27(4):607-615.
  • 7Haimovich A M, Peckham C, Teti J G, et al. SAR imagery of moving targets: Application of time-frequency distributions for estimating motion parameters. In: Proc 1994 SPIE's International Symposium on Aerospace and Sensing, 1994. 2238:238-247.
  • 8Rao P, Taylor F J. Estimation of instantaneous frequency using the discrete wigner distribution. Electronics Letters, 1990,26(4): 246-248.
  • 9Choi H, Williams W J. Improved time-frequency representation of multicomponent signals using exponential kernels. IEEE Trans on SP, 1988, 37(6): 862-871.
  • 10Barbarossa S. Analysis of multicomponent LFM signals by a combined Wigner-Hough transform. IEEE Trans On SP, 1995,43(6): 1511-1515.

共引文献200

同被引文献26

  • 1WIENER N.Hermitian polynomials and Fourier analysis[J].J.Math.Phys,1929(8):70-73.
  • 2NAMIAS V.The fractional order Fourier transform and its application to quantum mechanics[J].J.Inst.Math,1980 (25):241-265.
  • 3MENDLOVIC D,OZAKTAS H M.Fractional fourier transforms and their optical implementation[J].I.J.Opt.Soc.Amer.A,1993(10):1875-1881.
  • 4Almeida L M.The fractional Fourier transform and time-frequency representations[J].IEEE Trans.Sig.Proc.,1994,42 (11),3084-3091.
  • 5OONINCX P.A Fractional Fourier Based Correlator for Detecting Joint Time and Frequency Offsets[J].IEEE Digital Signal Processing,2007 15th interna-tional conference on Digital Object Identifier,2007.
  • 6OONINCX P J.Joint time-frequency offset detection using the fractional Fourier transform[J].Signal Processing,2008(88):2936-2942.
  • 7MUSTARD D.The fractional Fourier transform and the Wigner distribution[J].J.Austral.Math.Soc.Ser,B,1996 (38):209-219.
  • 8BORRE K,AKOS D M,BERTELSEN N,et al.A Software-Defined GPS and Galileo Receiver[C].Boston:Birkha¨user,2007.
  • 9MCBRIDE A C,KERR F H,On Namias' fractional Fourier transform[J].IMA J.Appl.Math,1987 (39):159-175.
  • 10MISRA P,ENGE P.Global Positioning System:Signals,Measurements,and Performance[M].Lincoln MA:Ganga-Jamuna Press,2006.

引证文献3

二级引证文献6

电子测量与仪器学报
2008年 第5期

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