Low-complexity robust DOA estimation
Tutkimustuotos › › vertaisarvioitu
Yksityiskohdat
| Alkuperäiskieli | Englanti |
|---|---|
| Otsikko | ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings |
| Kustantaja | The Institute of Electrical and Electronics Engineers, Inc. |
| Sivut | 2794-2798 |
| Sivumäärä | 5 |
| ISBN (painettu) | 9781467369978 |
| DOI - pysyväislinkit | |
| Tila | Julkaistu - 4 elokuuta 2015 |
| OKM-julkaisutyyppi | A4 Artikkeli konferenssijulkaisussa |
| Tapahtuma | IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING - Kesto: 1 tammikuuta 1900 → 1 tammikuuta 2000 |
Conference
| Conference | IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING |
|---|---|
| Ajanjakso | 1/01/00 → 1/01/00 |
Tiivistelmä
We propose a low complexity method for estimating direction of arrival (DOA) when the positions of the array sensors are affected by errors with known magnitude bound. This robust DOA method is based on solving an optimization problem whose solution is obtained in two stages. First, the problem is relaxed and the corresponding power estimation has an expression similar to that of standard beamforming. If the relaxed solution does not satisfy the magnitude bound, an approximation is made by projection. Unlike other robust DOA methods, no eigenvalue decomposition is necessary and the complexity is similar to that of MVDR. For low and medium SNR, the proposed method competes well with more complex methods and is clearly better than MVDR.