Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Partially adaptive broadband beamforming with a subband selective tranformation matrix

Liu, Wei and Weiss, S. and Hanzo, L. (2002) Partially adaptive broadband beamforming with a subband selective tranformation matrix. In: IEEE Sensor Array and Multichannel Signal Processing Workshop, 2002-08-04 - 2002-08-06.

[img]
Preview
PDF
liu02b.pdf - Final Published Version

Download (488kB) | Preview

Abstract

A partially adaptive generalized sidelobe canceller (GSC) with a novel spatially/spectrally subband-selective transformation matrix is proposed. The row vectors of this matrix constitute a series of bandpass filters, which separate the blocking matrix outputs into components of different DOAs and frequencies. This results in bandlimited spectra of its outputs, which is further exploited by subband decomposition and discarding the low-pass subbands appropriately prior to running independent unconstrained adaptive filters in subbands. By these steps the computational complexity of the system is greatly reduced. Additionally, a faster convergence speed is achieved by joint spatial and spectral decorrelation.