Abstract
In this paper, we compare low cost implementations of wideband adaptive beamformers utilising the generalised sidelobe canceller (GSC) in combination with the least-mean squares algorithms. {DFT} based techniques suffer from unjustified narrowband assumptions. We therefore derive and investigate an overlap-save implementation of the {GSC}, which offers a steady state suppression of jammers equivalent to a time domain GSC but may be prone to slow convergence. Finally, subband techniques offer a more robust convergence trade-off for a somewhat higher computational cost. Analysis and simulation results revealing some of the algorithms' properties are presented.
Original language | English |
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Pages | 281-287 |
Number of pages | 7 |
Publication status | Published - Sep 2005 |
Event | 2nd IEE/EURASIP Conference on DSP Enabled Radio - Southampton, United Kingdom Duration: 19 Sep 2005 → 20 Sep 2005 |
Conference
Conference | 2nd IEE/EURASIP Conference on DSP Enabled Radio |
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Country | United Kingdom |
City | Southampton |
Period | 19/09/05 → 20/09/05 |
Keywords
- comparison
- adaptive beamforming
- implementations
- wideband scenarios