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IEEE Transactions on Antennas and Propagation
Volume 46 Number 5, May 1998

An Efficient Technique for Eigenspace-Based Adaptive Interference Cancellation

Page 694.

Abstract:

This paper presents a technique for the computation of the interference subspace for eigenspace-based interference cancellation. Using a subarray partitioning scheme, we construct the interference subspace from the subarray interference subspaces. In the case of uniform linear arrays, the proposed technique has the advantages of reclaiming the lost degrees of freedom due to signal blocking and reduced computational burden over existing techniques. The proposed technique also possesses the capabilities to cope with the case of using nonuniform linear arrays in the environment of partially correlated signals. A computer simulation example is provided for illustration and comparison.

References

1. M. G. Amin, "Concurrent nulling and locations of multiple interference in adaptive antenna arrays," IEEE Trans. Signal Processing, vol. 40, pp. 2658-2663, Nov. 1992.
2. H. Subbaram and K. Abend, "Interference suppression via orthogonal projections: A performance analysis," IEEE Trans. Antennas Propagat., vol. 41, pp. 1187-1193, Sept. 1993.
3. B. Friedlander, "A signal subspace method for adaptive interference cancellation," IEEE Trans. Acoust., Speech, Signal Processing, vol. 36, pp. 1835-1845, Dec. 1988.
4. A. M. Haimovich and Y. Bar-Ness, "An eigenanalysis interference canceller," IEEE Trans. Signal Processing, vol. 39, pp. 76-84, Jan. 1991.
5. Y. Bresseler, V. U. Reddy, and T. Kailath, "Optimum beamforming for coherent signals and interference," IEEE Trans. Acoust., Speech, Signal Processing, vol. 36, pp. 833-842, June 1988.
6. K. Ohishi and R. T. Milton, "A new optimization technique for adaptive antenna arrays," IEEE Trans. Antennas Propagat., vol. 41, pp. 525-532, May 1993.
7. R. A. Horn and C. R. Johnson, Matrix Analysis.Cambridge, U.K.: Cambridge Univ. Press, 1985.
8. G. H. Golub and C. F. Van Loan, Matrix Computations.Baltimore, MD: Johns Hopkins Univ. Press, 1983.
9. T.-J. Shan and T. Kailath, "Adaptive beamforming for coherent signals and interference," IEEE Trans. Acoust., Speech, Signal Processing, vol. ASSP-33, pp. 527-536, June 1985.
10. R. A. Monzingo and T. W. Miller, Introduction to Adaptive Arrays.New York: Wiley, 1980.