Adaptive wideband beamforming with sensor delay-lines

Authors:
Wei Liu
Affiliations:
Communications Research Group, Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD, UK
Venue:
Signal Processing
Year:
2009

Citing 4
Cited 2

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Performance analysis of an adaptive broadband beamformer based on a two-element linear array with sensor delay-line processing

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Abstract

A novel adaptive wideband beamforming method is proposed, where the tap delays in the traditional method are replaced and only one adaptive coefficient is required for each sensor. In this way, the complex wideband beamforming system with temporal filtering can be avoided by implementing the proposed beamformer with simple analogue circuits for very high frequency and bandwidth applications. Another advantage of this new method is its potential to avoid the beam widening effect at higher off-boresight angels. The effectiveness of the proposed method is verified by simulations.