Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors

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Alrmah, Mohamed Abubaker and Weiss, Stephan (2013) Filter bank based fractional delay filter implementation for widely accurate broadband steering vectors. In: The Fifth IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, 2013-12-15 - 2013-12-18. (https://doi.org/10.1109/CAMSAP.2013.6714075)

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Abstract

Applications such as broadband angle of arrival estimation require the implementation of accurate broadband steering vectors, which generally rely on fractional delay filter designs. These designs commonly exhibit a rapidly decreasing performance as the Nyquist rate is approached. To overcome this, we propose a filter bank based approach, where standard fractional delay filters operate on a series of frequency-shifted oversampled subband signals, such that they appear in the filter's lowpass region. Simulations demonstrate the appeal of this approach.

ORCID iDs

Alrmah, Mohamed Abubaker and Weiss, Stephan ORCID logoORCID: https://orcid.org/0000-0002-3486-7206;
CORE (COnnecting REpositories)