| 1. |
- Gorokhov, Alexei, et al.
(author)
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Robust Blind Second-Order Deconvolution
- 1999
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In: IEEE Signal Processing Letters. - : IEEE Signal Processing Society. - 1070-9908 .- 1558-2361. ; 6:1, s. 13-16
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Journal article (peer-reviewed)abstract
- Second-order blind deconvolution of single input multiple output (SIMO) finite impulse response (FIR) channels is considered. A major drawback of several blind diversity techniques using antenna arrays/temporal-oversampling is high sensitivity to the choice of the model order. In this contribution, a robust method using only the second-order statistics is described. It provides high and robust estimation accuracy even for a limited sample size and an unknown model order. In contrast to other suggested approaches, that often exploit properties valid only in the large sample case, the proposed method is applicable both in the large sample and high signal-to-noise ratio (SNR) scenario.
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| 2. |
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| 3. |
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| 4. |
- REGALIA, PA, et al.
(author)
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STABILITY OF MULTIVARIABLE LEAST-SQUARES MODELS
- 1995
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In: IEEE SIGNAL PROCESSING LETTERS. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 1070-9908. ; 2:10, s. 195-196
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Journal article (other academic/artistic)abstract
- Least-squares equation-error models are widely used as a simple means of estimating an input-output transfer function. Although the models furnished by the least-squares method are not always stable, some recent works have shown that an autoregressive con
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| 5. |
- Stoica, P, et al.
(author)
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A new derivation of the APES filter
- 1999
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In: IEEE SIGNAL PROCESSING LETTERS. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 1070-9908. ; 6:8, s. 205-206
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Journal article (other academic/artistic)abstract
- We introduce a novel design criterion for data-dependent narrowband filters that are of interest in temporal or spatial spectral analysis applications, The solution to the design problem considered is shown to coincide with the recently introduced amplitu
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| 6. |
- Stoica, P, et al.
(author)
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Maximum-likelihood DOA estimation by data-supported grid search
- 1999
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In: IEEE SIGNAL PROCESSING LETTERS. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 1070-9908. ; 6:10, s. 273-275
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Journal article (other academic/artistic)abstract
- After reviewing the main existing methods for determining the maximum-likelihood (ML) estimates of the direction-of-arrival (DOA) parameters in array signal processing applications, we introduce a new conceptually simple and computationally effective appr
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| 7. |
- Stoica, P, et al.
(author)
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On eigenpolynomials for 2-D sinusoidal signals
- 1999
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In: IEEE SIGNAL PROCESSING LETTERS. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 1070-9908. ; 6:1, s. 11-12
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Journal article (other academic/artistic)abstract
- We show that the main result on eigenpolynomials for two-dimensional (2-D) sinusoidal signals in a recent letter is incorrect, and hence the characterization of 2-D eigenpolynomials is still an open problem. Furthermore, we state a related problem that is
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| 8. |
- STOICA, P, et al.
(author)
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ON THE CONVERGENCE PROPERTIES OF A TIME-VARYING RECURSION
- 1995
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In: IEEE SIGNAL PROCESSING LETTERS. - 1070-9908. ; 2:5, s. 95-96
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Journal article (other academic/artistic)abstract
- This letter makes a number of remarks on the convergence properties of a time-varying recursion that appears in several signal/system parameter estimation problems. Among others, it is shown by means of an example that the recursion in question can be div
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| 9. |
- Stoica, P, et al.
(author)
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On the Cramer-Rao bound under parametric constraints
- 1998
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In: IEEE SIGNAL PROCESSING LETTERS. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 1070-9908. ; 5:7, s. 177-179
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Journal article (other academic/artistic)abstract
- This letter presents a simple expression for the Cramer-Rao bound (CRB) for parametric estimation under differentiable, deterministic constraints on the parameters, In contrast to previous works, the constrained CRB presented here does not require that th
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| 10. |
- STOICA, P, et al.
(author)
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OPTIMIZATION RESULT FOR CONSTRAINED BEAMFORMER DESIGN
- 1995
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In: IEEE SIGNAL PROCESSING LETTERS. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 1070-9908. ; 2:4, s. 66-67
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Journal article (other academic/artistic)abstract
- The column-unitary matrix whose range space is closest, in the Frobenius norm metric, to the range of a given matrix and whose columns belong to the null space of another specified matrix is obtained. An application of the matrix optimization result deriv
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