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A low-complexity self-calibrating adaptive quadrature receiver

Cetin, Ediz and Demirsoy, Suleyman S. and Kale, Izzet and Morling, Richard C.S. (2006) A low-complexity self-calibrating adaptive quadrature receiver. In: Stoica, Adrian and Arslan, Tughrul and Suess, Martin and Yalçın, Senay and Keymeulen, Didier and Higuchi, Tetsuya and Zebulum, Ricardo and Aydin, Nizamettin, (eds.) Proceedings of the First NASA/ESA Conference on Adaptive Hardware and Systems, 15-18 June 2006, Istanbul, Turkey (AHS 2006). IEEE, Los Alamitos, USA, pp. 428-435. ISBN 0769526144

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Official URL: http://dx.doi.org/10.1109/AHS.2006.7

Abstract

In this paper digital part of a self-calibrating quadrature-receiver is described, containing a digital calibration-engine. The blind source-separation-based calibration-engine eliminates the RF-impairments in real-time hence improving the receiver's performance without the need for test/pilot tones, trimming or use of power-hungry discrete components. Furthermore, an efficient time-multiplexed calibration-engine architecture is proposed and implemented on an FPGA utilising a reduced-range multiplier structure. The use of reduced-range multipliers results in substantial reduction of area as well as power consumption without a compromise in performance when compared with an efficiently designed general purpose multiplier. The performance of the calibration-engine does not depend on the modulation format or the constellation size of the received signal; hence it can be easily integrated into the digital signal processing paths of any receiver.

Item Type:Book Section
Research Community:University of Westminster > Electronics and Computer Science, School of
ID Code:3320
Deposited On:16 Feb 2007
Last Modified:11 Aug 2010 15:31

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