期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

基于分数阶Fourier变换的LFM信号参数估计精度分析 被引量：15

Parameters Resolution of LFM signal Based on Fractional Fourier Transform
下载PDF
导出
摘要 本文采用一阶扰动分析的方法分析了基于分数阶Fourier变换的LFM信号参数估计精度,推导得到了频率估计误差均方值表达式和调频率估计误差均方值表达式,前者反比于信号时长,后者反比于信号时长的平方。结果表明,基于分数阶Fourier变换的LFM信号参数估计方法在估计精度方面达到了最优。 Estimation accuracy of LFM signal parameters based on fractional Fourier transform are evaluated by a perturbation analysis,and expressions for root mean square of estimation error of radian frequency and radian frequency rate are derived, the former is inverse proportion to observation time and the latter is inverse proportion to square of observation time. Results show that the method is optimal in the sense of estimation accuracy.
作者 刘建成 王雪松 刘忠 肖顺平 王国玉
机构地区 国防科技大学电子科学与工程学院
出处 《信号处理》 CSCD 北大核心 2008年第2期197-200,共4页 Journal of Signal Processing
基金 全国优秀博士学位论文专项资金资助项目(No.08100101)
关键词 LFM信号 分数阶FOURIER变换 参数估计 估计精度 LFM signal fractional Fourier transform parameter estimation accuracy
分类号 TN957.51 [电子电信—信号与信息处理] V243.2 [航空宇航科学与技术—飞行器设计]
  • 相关文献

参考文献14

  • 1E Kelly. The radar measurement of range, velocity and acceleration [ J ]. IRE Trans Military Electronics, 1961,5 ( 1 ) .51-57.
  • 2Fred C Schweppe. Radar frequency modulations for accelerating targets under a bandwidth constraint [ J ]. IEEE Trans Military Electronics, 1965,5 (1) :26-32.
  • 3P Bello. Joint estimation of delay, Doppler and Doppler rate [J]. IRE Trans Information Theory, 1960,6(3) :330-341.
  • 4Theagenis J Abatzoglou, Gregory O Gheen. Range, radial velocity and acceleration MLE using radar LFM pulse train [ J]. IEEE Trans Aerospace and Electronic Systems, 1998, 34 (4) : 1070-1084.
  • 5Theagenis J Abatzoglou. Fast maximum likelihood joint estimation of frequency and frequency rate [ J ]. IEEE ICASSP PROC, 1986,11 ( 1 ) :708-715.
  • 6Shimon Peleg, Boaz Porat. Linear FM signal parameter estimation from discrete-time observations [ J ]. IEEE Trans Aerospace and Electronics Systems, 1991,27 (4) :607- 616.
  • 7S Barbarossa. Analysis of multicomponent LFM signals by a combined Wigner-Hough transform[ J]. IEEE Trans Signal Processing, 1995 ,43 (6) : 1511-1515.
  • 8L B Almeida. The fractional Fourier transform and time-frequency representations[ J]. IEEE Trans Signal Processing, 1994,42( 11 ) :3084-3091.
  • 9H M Ozaktas, Orhan Arikan, et al. Digital computation of the fractional Fourier transform [ J ]. IEEE Trans Signal Processing, 1996,44 ( 9 ) :2141-2150.
  • 10Soo-Chang Pei, Min-Hung Yeh, et al. Discrete fractional Fourier transform based on orthogonal projections [ J ]. IEEE Trans Signal Processing, 1999,47 (5) : 1335-1348.

二级参考文献21

  • 1Boashash B. Estimating and interpreting the instantaneous frequency of a signal. Proc IEEE, 1992, 80(4): 519-569.
  • 2Diuric P M. Kay S M. Parameter estimation of china signal. IEEE Trans on ASSP, 1990, 38(12): 2118-2126.
  • 3Barbarossa S, Petrone V. Analysis of polynomial-phase signals by the integrated generalized ambiguity function. IEEE Trans on SP, 1997, 45(2): 316-327.
  • 4Abatzoglou T J. Fast maximum likelihood joint estimation of frequency and frequency rate. IEEE Trans on AES, 1986, 22(6):708-715.
  • 5Peleg S, Porat B. Linear FM signal parameter estimation from discrete-time observations. IEEE Trans on AES, 1991, 27(4):607-615.
  • 6Haimovich 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.
  • 7Rao P, Taylor F J. Estimation of instantaneous frequency using the discrete wigner distribution. Electronics Letters, 1990,26(4): 246-248.
  • 8Choi H, Williams W J. Improved time-frequency representation of multicomponent signals using exponential kernels. IEEE Trans on SP, 1988, 37(6): 862-871.
  • 9Barbarossa S. Analysis of multicomponent LFM signals by a combined Wigner-Hough transform. IEEE Trans On SP, 1995,43(6): 1511-1515.
  • 10Namias V. The fractional Fourier transform and its application in quantum mechanics. J Inst Appl Math, 1980, 25:241-265.

共引文献174

同被引文献168

引证文献15

二级引证文献74

信号处理
2008年 第2期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部