Blind Capon Beamformer Based on Independent Component Extraction: Single-Parameter Algorithm

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F25%3A00013232" target="_blank" >RIV/46747885:24220/25:00013232 - isvavai.cz</a>
Result on the web
<a href="https://asap.ite.tul.cz/wp-content/uploads/sites/3/2025/02/IEEE_SigProc_Letters__Blind_Capon.pdf" target="_blank" >https://asap.ite.tul.cz/wp-content/uploads/sites/3/2025/02/IEEE_SigProc_Letters__Blind_Capon.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/LSP.2025.3538261" target="_blank" >10.1109/LSP.2025.3538261</a>

Result language
angličtina
Original language name
Blind Capon Beamformer Based on Independent Component Extraction: Single-Parameter Algorithm
Original language description
We consider a phase-shift mixing model for linear sensor arrays in the context of blind source extraction. We derive a blind Capon beamformer that seeks the direction where the output is independent of the other signals in the mixture. The algorithm is based on Independent Component Extraction and imposes an orthogonal constraint, thanks to which it optimizes only one real-valued parameter related to the angle of arrival. The Cramer-Rao lower bound for the mean interference-to-signal ratio is derived. The algorithm and the bound are compared with conventional blind and direction-of-arrival estimation+beamforming methods, showing improvements in terms of extraction accuracy. An application is demonstrated in frequencydomain speaker extraction in a low-reverberation room.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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