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基于分数阶傅立叶变换的WLFM信号DOA估计 被引量:7

DOA estimation of WLFM signal based on fractional Fourier transforms
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摘要 本文提出了一种新的基于分数阶傅立叶变换的DOA估计算法,该算法首先将天线阵的观测信号变换到分数阶Fourier域,并将时域时变的方向向量转化为分数阶Fourier域时不变的方向向量,同时将线性调频信号解调为窄带平稳信号,然后在相应的分数阶Fourier域,利用root-MUSIC算法进行波达方向估计.理论分析与仿真结果表明,该方法算法简单,估计性能好.
出处 《信号处理》 CSCD 北大核心 2005年第z1期57-60,共4页 Journal of Signal Processing
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  • 1[1]Moeness G. Amin. Spatial Time-Frequency distributions for direction finding and blind source separation. In Proc.SPIE, 1999, 723: 62-70.
  • 2[2]Moeness G. Amin. Time-Frequency MUSIC. IEEE Signal Processing letters, May 1999,6(5).
  • 3[3]Alex B. Gershman and Moeness G. Amin. Wideband Direction-of-Arrival Estimation of Multiple Chirp Signals Using Spatial Time-Frequency Distributions. IEEE Signal Processing letters, June 2000,7(6).
  • 4[4]Moeness G. Amin. Coherent wideband DOA estimation of Multiple FM Signals using Spatial Time-Frequency distributions. IEEE Signal Processing letters, 2000.
  • 5[5]Moeness G. Amin. Polarimetric Time-Frequency MUSIC in Coherent Signal Environment. IEEE Signal Processing letters, 2003.
  • 6[6]Yimin Zhang, M GAmin. Spatial averaging of TimeFrequency distributions for signal recovery in uniform linear arrays. IEEE Trans. Signal Processing, 2000,48(10): 2892-2902.
  • 7[7]Yimin Zhang, Weifeng Mu and M GAmin. Subspace analysis of spatial Time-Frequency distributions matrices.IEEE Trans. Signal Processing, 2001, 49(4): 747-758.
  • 8[8]Y. Zhang, W. Mu and M. G. Amin. Time-Frequency maximum likelihood methods for direction finding. J.Franklin Inst, July 2000, 337(4): 483-497.
  • 9[9]Namias V. The fractional Fourier transform and its application in quantum mechanics. J Inst Appl Math,1980, 25: 241-265.
  • 10[10]D. A. Linebarger, R. D. DeGroat and E. M. Dowling.Efficient direction-finding methods employing forwardbackward averaging. IEEE Trans. Signal Processing,Aug. 1994, 42: 2136-2145.

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