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FRFT在空间监视雷达中的应用 被引量:2

The Use of FRFT in Space Surveillance Radar
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摘要 空间监视雷达系统中,目标的检测与参数估计是首先需要解决的问题。以"电子篱笆"型空间监视雷达为例,研究了分数阶傅里叶变换(FRFT)在其信号处理中的应用。在对空间目标穿越雷达视场时的速度及其变化率进行分析的基础上,建立了空间目标回波信号模型。然后推导出FFT方法的最大信号积累时长的解析表达式,对比分析了基于FFT和FRFT的目标检测性能。最后,对FRFT的参数估计精度进行了推导。研究表明,利用FRFT可以有效地积累目标回波信号的能量,提升加速运动目标的检测性能,对信号参数估计的精度接近于其CRLB。 This paper discusses the use of FRFT(Fractional Fourier Transform) for solving the problem of target detection and parameter estimation in the radar system for space surveillance. First, the velocities and accelerations of space objects crossing radar field of view are analyzed. The model of radar echo signal is established based on the analysis. Then, the target detection performance using FFT(Fast Fourier Transform) and FRFT are analyzed with the maximum integration time of FFT derived before. The accuracy of parameter estimation using FRFT is derived at last. The results indicate that FRFT enhances the detection performance and the precision of parameter estimation using FRFT is close to CRLB(Cramer-Rao Lower Bound).
出处 《雷达科学与技术》 2010年第1期37-43,48,共8页 Radar Science and Technology
关键词 分数阶傅里叶变换 空间监视 目标检测 参数估计 电子篱笆 fractional Fourier transform(FRFT) space surveillance target detection parameter estimation fence
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参考文献15

  • 1胡坤娇,罗健.我国空间监视地基雷达系统分析[J].雷达科学与技术,2008,6(2):87-91. 被引量:6
  • 2Easton R L,Fleming J J.The Navy Space Surveillance System[J].Proc of IRE,1960(48):663-669.
  • 3Michal Th,Eglizeaud J P,Bouchard J.GRAVES:The New French System for Space Surveillance[C]∥Proc of the Fourth European Conference on Space Debris,Darmstadt,Germany:[s.n.],2005:18-20.
  • 4Haimovich A M,Peckham C D,Teti J G.SAR Imagery of Moving Targets:Application of Time-Frequency Distributions for Estimating Motion Parameters[C]∥1994 SPIE Hybrid Image and Signal Processing IV,Orlando,FL:[s.n.],1994:238-247.
  • 5Barbarossa S.Analysis of Multicomponent LFM Signals by a Combined Wigner-Hough Transform[J].IEEE Trans on Signal Processing,1995,46(6):1511-1515.
  • 6田孝华,廖桂生,吴云韬.LFM脉冲雷达回波Doppler与多径时延的联合估计[J].电子学报,2002,30(6):857-860. 被引量:15
  • 7Ozaktas H M,Arikan O,Kutay M A,et al.Digital Computation of the Fractional Fourier Transform[J].IEEE Trans on Signal Processing,1996,44(9):2141-2150.
  • 8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
  • 9Ali I,Al-Dhahir N,Hershey J E.Doppler Characterization for LEO Satellites[J].IEEE Trans on Communications,1998,46(3):309-313.
  • 10Knowles S H,Waltman W B,Hulburt E O,et al.Experimental Observations of Naval Space Surveillance Satellite Signals with an Out-of-Plane Receiving Station[R].Washington:Naval Research Laboratory,1982.

二级参考文献31

  • 1李玉书,万伦.雷达技术在深空目标探测中的作用[J].现代雷达,2005,27(10):1-4. 被引量:6
  • 2张俊华,徐青,赵拥军.一种基于STK平台的相控阵雷达空间目标监视模型[J].雷达科学与技术,2007,5(1):34-37. 被引量:4
  • 3Bhattacharya T K. Time-frequency based detection Scheme for missile warning system. In: IEE Radar 97 Conferrence,Edingburg, 1997. 539-543.
  • 4Peleg S, Friedlader B. The discrete polynomial-phase transform. IEEE Trans Signal Processing, 1995, 43(8): 1901-1914.
  • 5Xia X G. Discrete chirp-fourier transform and its application to chirp rate estimation. IEEE Trans S P, 2000, 48(11): 3122-3133.
  • 6Woodward P M. Probability and Information Theory with Application to Radar. London: Pergamon Press, 1964.
  • 7Boashash B. Estimating and interpreting the instantaneous frequency of a signal. Proc IEEE, 1992, 80(4): 519-569.
  • 8Diuric P M. Kay S M. Parameter estimation of china signal. IEEE Trans on ASSP, 1990, 38(12): 2118-2126.
  • 9Barbarossa S, Petrone V. Analysis of polynomial-phase signals by the integrated generalized ambiguity function. IEEE Trans on SP, 1997, 45(2): 316-327.
  • 10Abatzoglou T J. Fast maximum likelihood joint estimation of frequency and frequency rate. IEEE Trans on AES, 1986, 22(6):708-715.

共引文献206

同被引文献12

  • 1Ozaktas H M, Arikan O, Kutay M A, et al. Digital Com- putation of the Fractional Fourier Transform [J]. IEEE Trans on Signal Processing, 1996, 44(9):2141-2150.
  • 2Atmeida L B. The Fractional Fourier Transform and Time-Frequency Representations[J].IEEE Trans on Signal Processing, 1994, 42(11) :3084-3091.
  • 3王军,林强,米慈中,等译.SkolnikMI.雷达手册(第2版)[M].北京:电子工业出版社,2003.
  • 4UCS satellite database [EB/OL]. [2012-05-13]. http;//www. ucsusa. org/nuclear_weapons_and_ global_ security /space_ weapons/technical_issues/ucs-satellite-datab.
  • 5MORRIS C J,BRYANT C F,EARL M P’et al. NAVSPA-SUR sensor system digital signal processing receiver [R].Washington,DC: Naval Research Laboratory, 20375-5320,1993:1 -10.
  • 6GAO. Space acquisitions: development and oversight chal-lenges in delivering improved space situational awarenesscapabilities[EB/OL]. [2012-05-13]. http://www. gao. gov/GAO-11-545.
  • 7BRINTON T. U. S and Australia sign agreement on spacesituational awareness[EB/OL]. ?2010-11-12)[2012-05-13],http://www. spacenews. com/military/101112-australia-sign-agreement-space-situational-awareness. html.
  • 8ALI I,DHAHIR A N, HERSHEY J E. Doppler characteriza-tion for LEO satellites[J]. IEEE Trans, on Communica-tions, 1998,46(3) : 309-313.
  • 9T. Michel J. Bouchard.法国空间监视网(Graves):法国空间监视的新概念[J].电子工程信息,2007(5):22-27. 被引量:1
  • 10胡坤娇,罗健.我国空间监视地基雷达系统分析[J].雷达科学与技术,2008,6(2):87-91. 被引量:6

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