Direction-of-arrival estimation of coherent spread spectrum signals using signal eigenvector

신호 고유벡터를 이용한 코히어런트 대역확산 신호의 도래각 추정

  • Published : 1997.03.01

Abstract

A high resolution algorithm is presented for resolving multiple coherent spread spectrum signals that are incident on an equispaced linear array. Unlike the conventional noise-eigenvector based methods, this algorithm makes use of the signal eigenvectors of the array spectral density matrix that are associates with eigenvalues that are larger than the sensor noise level. Simulation results are shown to demonstate the high performance of the proposed approach in comparison with MUSIC in which coherent signal subspace method (CSM) is employed.

Keywords

References

  1. Ph. D. Dissertation, Stanford Univ. A signal subspace approach to multiple emitter location and spectral estimation R. O. Schmidt
  2. IEEE Trans. on Acoustics, Speech and Signal Processing v.ASSP-33 On Spatial smoothing for direction-of-arrival estimation of coherent signals T. J. Shan;M. Wax;T. Kailath
  3. IEEE Trans. on Acoustics, Speech and Signal Processing v.ASSP-36 An Improved spatial smoothing techniques for bearing estimation in a multipath environment R. T. Williams, S.;Prasad, A. K. Mahalanabis;L. H. Sibul
  4. IEEE Trans. on Acoustics, Speech and Signal Processing v.33 no.4 Coherent signal subspace processing for the detection and estimation of angle of arrival of of multiple wide-band sources H. Wang;M. Karveh
  5. IEEE Trans. Aerospace and Electronic System v.AES-25 no.1 General direction-of-arrival estimation: A signal suvspace approach J. A. Cadzow;Y. S. Kim;D. C. Shiue
  6. Proc. IEEE v.70 Spectral estimation: An overdetermined rational model equation approach J. A. Cadzow