Journal of Electronics (China)

, Volume 25, Issue 4, pp 465–470 | Cite as

Preconditioned methods for Space-Time Adaptive Processing

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Abstract

This paper introduces the preconditioned methods for Space-Time Adaptive Processing (STAP). Using the Block-Toeplitz-Toeplitz-Block (BTTB) structure of the clutter-plus-noise covariance matrix, a Block-Circulant-Circulant-Block (BCCB) preconditioner is constructed. Based on the preconditioner, a Preconditioned Multistage Wiener Filter (PMWF) which can be implemented by the Preconditioned Conjugate Gradient (PCG) method is proposed. Simulation results show that the PMWF has faster convergence rate and lower processing rank compared with the MWF.

Key words

Conjugate gradient method Multistage Wiener filter Preconditioner Space-Time Adaptive Processing (STAP) 

CLC index

TN957.51 TN959.73 
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References

  1. [1]
    I. S. Reed and L. E. Brennan. Rapid convergence rate in adaptive arrays. IEEE Trans. on Aerospace and Electronic Systems, 10(1974)6, 853–863.CrossRefGoogle Scholar
  2. [2]
    H. Wang and L. Cai. On adaptive spatial-temporal processing for airborne surveillance radar systems. IEEE Trans. on Aerospace and Electronic Systems, 30(1994) 3, 660–670.CrossRefGoogle Scholar
  3. [3]
    J. S. Goldstein and I. S. Reed. Reduced rank adaptive filtering. IEEE Trans. on Signal Processing, 45(1997)2, 493–496.CrossRefGoogle Scholar
  4. [4]
    L. M. William. A STAP overview. IEEE A&E System Magazine, 19(2004)1, 19–35.CrossRefMathSciNetGoogle Scholar
  5. [5]
    J. S. Goldstein, I. S. Reed, and P. A. Zulch. Multistage partially adaptive STAP CFAR detection algorithm. IEEE Trans. on Aerospace Electronic Systems, 35(1999)2, 645–661.CrossRefGoogle Scholar
  6. [6]
    R. H. Chan and M. K. Ng. Conjugate gradient methods for Toeplitz systems. SIAM Review, 38(1996)3, 427–482.MATHCrossRefMathSciNetGoogle Scholar
  7. [7]
    T. A. Barton and S. T. Smith. Structured covariance estimation for space-time adaptive processing. Proc. of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Münich, Germany, Apr. 21–24, 1997, vol.5, 3493–3496.Google Scholar
  8. [8]
    T. Chan and J. Olkin. Circulant preconditioner for Toeplitz-block matrices. Numer Algo., 6(1994)1, 89–101.MATHCrossRefMathSciNetGoogle Scholar
  9. [9]
    M. E. Weippert, J. D. Hiemstra, J. S. Goldstein, et al. Insights from the relationship between the multistage Wiener filter and the method of conjugate gradients. The Sensor Array and Multichannel Signal Processing Workshop Proceedings, SAIC, Chantilly, VA, USA, Aug. 4–6, 2002, 388–392.Google Scholar
  10. [10]
    G. Dietl. Conjugate gradient implementation of multistage nested Wiener filter for reduced dimension processing. [M.S. dissertation], Münich University, 2001.Google Scholar
  11. [11]
    J. Ward. Space-time adaptive processing for airborne radar. Technical Report 1015, Lincoln Lab, Dec. 1994.Google Scholar

Copyright information

© Science Press, Institute of Electronics, CAS and Springer-Verlag GmbH 2008

Authors and Affiliations

  1. 1.College of Electronic Science and EngineeringNational University of Defense TechnologyChangshaChina

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