Direction of arrival estimation using pseudo-intensity vectors with direct-path dominance test. Moore, A.; Evers, C.; Naylor, P. A.; Alon, D. L.; and Rafaely, B. In 2015 23rd European Signal Processing Conference (EUSIPCO), pages 2296-2300, Aug, 2015.
Direction of arrival estimation using pseudo-intensity vectors with direct-path dominance test [pdf]Paper  doi  abstract   bibtex   
The accuracy of direction of arrival estimation tends to degrade under reverberant conditions due to the presence of reflected signal components which are correlated with the direct path. The recently proposed direct-path dominance test provides a means of identifying time-frequency regions in which a single signal path is dominant. By analysing only these regions it was shown that the accuracy of the FS-MUSIC algorithm could be significantly improved. However, for real-time implementation a less computationally demanding localisation algorithm would be preferable. In the present contribution we investigate the direct-path dominance test as a preprocessing step to pseudo-intensity vector-based localisation. A novel formulation of the pseudo-intensity vector is proposed which further exploits the direct path dominance test and leads to improved localisation performance.
@InProceedings{7362794,
  author = {A. Moore and C. Evers and P. A. Naylor and D. L. Alon and B. Rafaely},
  booktitle = {2015 23rd European Signal Processing Conference (EUSIPCO)},
  title = {Direction of arrival estimation using pseudo-intensity vectors with direct-path dominance test},
  year = {2015},
  pages = {2296-2300},
  abstract = {The accuracy of direction of arrival estimation tends to degrade under reverberant conditions due to the presence of reflected signal components which are correlated with the direct path. The recently proposed direct-path dominance test provides a means of identifying time-frequency regions in which a single signal path is dominant. By analysing only these regions it was shown that the accuracy of the FS-MUSIC algorithm could be significantly improved. However, for real-time implementation a less computationally demanding localisation algorithm would be preferable. In the present contribution we investigate the direct-path dominance test as a preprocessing step to pseudo-intensity vector-based localisation. A novel formulation of the pseudo-intensity vector is proposed which further exploits the direct path dominance test and leads to improved localisation performance.},
  keywords = {direction-of-arrival estimation;signal classification;time-frequency analysis;vectors;direction of arrival estimation;reflected signal components;direct-path dominance test;time-frequency regions;FS-MUSIC algorithm;preprocessing step;pseudo-intensity vector-based localisation;direct path dominance test;Direction-of-arrival estimation;Time-frequency analysis;Estimation;Arrays;Harmonic analysis;Correlation;Multiple signal classification;direction of arrival estimation;spherical harmonic domain;pseudo-intensity vectors},
  doi = {10.1109/EUSIPCO.2015.7362794},
  issn = {2076-1465},
  month = {Aug},
  url = {https://www.eurasip.org/proceedings/eusipco/eusipco2015/papers/1570104221.pdf},
}
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