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| In this paper, we consider the problem of estimatingthe directions-of-arrival (DOAs) and ranges of multiple nearfieldnarrowband signals impinging on a symmetric uniformlinear array (ULA) in presence of complicated noise (e.g., in nonuniform noise) in practical applications.By forming a Toeplitz-like correlation matrix from the antidiagonalelements of the array covariance matrix, a new subspace-basedlocalization method is proposed, where the null space is obtainedthrough eigendecomposition of the resultant Toeplitz-like matrix,and the MUSIC method is used to estimate the locationparameters. Finally,the effectiveness of the proposed method is verified throughnumerical examples. |
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| Keywords:Near-field source localization, symmetric uniform linear array, complicated noise, Toeplitz matrix reconstruction. |
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