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Underdetermined DOA Estimation for Wide-Band Stationary Sources in Unknown Noise Environment

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4 Author(s)
L. Huang ; Lei Huang is with the Department of Electronic and Information Engineering, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China (email: ; Q. Zhang ; S. Wu ; So

Underdetermined direction-of-arrival estimation for wide-band stationary signals is addressed in this correspondence. By properly employing the diversities in frequency domain, the proposed method is able to significantly increase the degrees of freedom of a uniform linear array, which enables us to handle more sources than sensors. Meanwhile, as the unknown noise can be efficiently suppressed in the proposed estimator, the accuracy and robustness improves considerably. Numerical results are presented for illustrating the effectiveness of the proposed method.

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IEEE Transactions on Signal Processing  (Volume:PP ,  Issue: 99 )