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: 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


Download (1MB)
Official URL: http://dx.doi.org/10.1109/AHS.2006.7


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
Subjects: University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)
Depositing User: Miss Nina Watts
Date Deposited: 16 Feb 2007
Last Modified: 11 Aug 2010 14:31
URI: http://westminsterresearch.wmin.ac.uk/id/eprint/3320

Actions (login required)

Edit Item (Repository staff only) Edit Item (Repository staff only)