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A harmonic noise model for direction finding in colored ambient noise

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2 Author(s)
Vanpoucke, Filiep ; Dept. of Electr. Eng., Katholieke Univ., Leuven, Belgium ; Paulraj, A.

High-resolution algorithms for direction finding of narrowband sources require a good estimate of the noise correlation matrix. We derive a physically motivated linear noise model. It is based on a Fourier expansion of the ambient noise field and is applicable to arbitrary antenna arrays. We also show that for contrived cases, a linear model may not be uniquely identifiable.<>

Published in:

Signal Processing Letters, IEEE  (Volume:2 ,  Issue: 7 )