DocumentCode
1898743
Title
Performance and complexity comparison of broadband beamforming structures
Author
Koh, Choo Leng ; Weiss, Stephan
Author_Institution
Commun. Res. Group, Southampton Univ., UK
fYear
2004
fDate
18-21 July 2004
Firstpage
124
Lastpage
128
Abstract
In this paper, we compare low cost implementations of broadband adaptive beamformers, specifically the generalised sidelobe canceller, using least-mean squares type algorithms. DFT based techniques suffer from unjustified narrowband assumptions, or in case of overlap-save implementations, from potential slow convergence. Subband techniques offer a more robust convergence traded-off for a somewhat higher computational cost. Simulation results revealing some of the algorithms´ properties are presented.
Keywords
antenna arrays; array signal processing; broadband antennas; convergence of numerical methods; discrete Fourier transforms; least mean squares methods; DFT based technique; broadband adaptive beamformer; convergence; discrete Fourier transform; least-mean square algorithm; sidelobe canceller; subband technique; Array signal processing; Computational complexity; Computational efficiency; Computational modeling; Convergence; Costs; Discrete Fourier transforms; Interference; Narrowband; Signal processing;
fLanguage
English
Publisher
ieee
Conference_Titel
Sensor Array and Multichannel Signal Processing Workshop Proceedings, 2004
Print_ISBN
0-7803-8545-4
Type
conf
DOI
10.1109/SAM.2004.1502921
Filename
1502921
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