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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Low-complexity frequency-domain GSC for broadband beamforming

Liu, Wei and Weiss, S. and Hanzo, L. (2002) Low-complexity frequency-domain GSC for broadband beamforming. In: 6th International Conference on Signal Processing, 2002-08-26 - 2002-08-30.

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Abstract

This paper proposes a new method to reduce the computational complexity of the frequency-domain GSC. In this proposed GSC structure, the column vectors of the blocking matrix constitute a series of bandpass filters, which decompose the impinging signals into components of specific DOA angles and frequencies and lead to band-limited spectra of blocking matrix outputs. When applying a DFT to each of these outputs, some of the frequency bins of the DFT are zero and can be omitted from the adaptive processing. This, together with partial adaptivity of the beamformer, results in a low computational complexity system.