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Volume 24 Issue 3
Mar.  1998
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Journal of Beijing University of Aeronautics and Astronautics  > 1998  >  24(3): 267-269.
Si Deyi, Le Qiang, Shen Shituanet al. Method to Improve Performance of Estimation of DOA Using Toeplitz Characteristic[J]. Journal of Beijing University of Aeronautics and Astronautics, 1998, 24(3): 267-269. (in Chinese)
Citation: Si Deyi, Le Qiang, Shen Shituanet al. Method to Improve Performance of Estimation of DOA Using Toeplitz Characteristic[J]. Journal of Beijing University of Aeronautics and Astronautics, 1998, 24(3): 267-269. (in Chinese)
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Method to Improve Performance of Estimation of DOA Using Toeplitz Characteristic

  • Beijing University of Aeronautics and Astronautics,Dept. of Electronic Engineering

  • Received Date: 20 Jan 1997
  • Publish Date: 31 Mar 1998
    Abstract
  • A method is proposed to make the estimation of the covariance become Toeplitz matrix using the Toeplitz characteristic of covariance matrix . It can improve the performance of estimation of DOA in the low SNR and shot snapshot , and dose not add complex multiplication. It is used in the MUSIC algorithm and the PRO-ESPRIT algorithm . The numerical simulation results show that the spatial spectrum and the depth between wave crest and trough are increased in the MUSIC algorithm , and the standard deviations of the estimation of DOA are decreased in the MUSIC algorithm and the PRO-ESPRIT algorithm in the low SNR .The method can be used in other DOA estimation algorithm .

     

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  • 1 .Eriksson A,Stoica P,S[AKo¨]derstr[AKo¨]m T.Markov-based eigenanalysis method for frequency estimation.IEEE Trans on SP,1994,42(3):586~594 2. Roy R,Paulraj A,Kailath T . Estimation of signal parameters via rotational invariance techniques-ESPRIT.Indian Institute of Science Journal,1986,67:341~350 3. Hua Yinbo,Tapan K Sarkar. On SVD for estimating generalized eigenvalues of singular matrix pencil in noise. IEEE Trans on SP ,1991,39: 829~899 4. Wax M,Shan T J,Kailathm T. Spatio-temporal spectral analysis by eigenstructure method.IEEE Trans on ASSP, 1984, 32: 817~827 5. 徐树方.矩阵计算的理论与方法.北京:北京大学出版社,1995 6. 蒋正新,施国梁.矩阵理论及其应用.北京:北京航空航天大学出版社,1988
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