Augmented covariance estimation with a cyclic approach in DOA. Mendez-Rial, R.; Gonzalez-Prelcic, N.; and Heath, R. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, volume 2015-Augus, 2015.
abstract   bibtex   
? 2015 IEEE.High resolution direction-of-arrival (DOA) estimation is an important problem in many array signal processing applications. This paper proposes an augmented covariance estimator for DOA estimation. The new method exploits the periodicity of the covariance lags when the DOAs are assumed on a discrete grid with a certain resolution. Then, it achieves twice the resolution of typical methods such as the direct augmentable approach or forward backward spatial smoothing. When the sources are not on the discrete grid, an interpolated array manifold technique is proposed to mitigate the grid mismatch error.
@inproceedings{
 title = {Augmented covariance estimation with a cyclic approach in DOA},
 type = {inproceedings},
 year = {2015},
 identifiers = {[object Object]},
 keywords = {[covariance matrices, Direction-of-arrival estimat},
 volume = {2015-Augus},
 id = {ebc36151-d674-35cd-82a2-09157099f591},
 created = {2016-09-06T19:48:00.000Z},
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 abstract = {? 2015 IEEE.High resolution direction-of-arrival (DOA) estimation is an important problem in many array signal processing applications. This paper proposes an augmented covariance estimator for DOA estimation. The new method exploits the periodicity of the covariance lags when the DOAs are assumed on a discrete grid with a certain resolution. Then, it achieves twice the resolution of typical methods such as the direct augmentable approach or forward backward spatial smoothing. When the sources are not on the discrete grid, an interpolated array manifold technique is proposed to mitigate the grid mismatch error.},
 bibtype = {inproceedings},
 author = {Mendez-Rial, R. and Gonzalez-Prelcic, N. and Heath, R.W.},
 booktitle = {ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings}
}
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