Title
A Low-Complexity Self-Calibrating Adaptive Quadrature Receiver
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.
Year
DOI
Venue
2006
10.1109/AHS.2006.7
AHS
Keywords
Field
DocType
quadrature amplitude modulation,degradation,phase shift keying,transceivers,hardware,calibration,radio frequency,digital signal processing,real time,blind source separation,radio receivers,constellation diagram,very large scale integration,signal processing,field programmable gate arrays
Digital signal processing,Quadrature amplitude modulation,Adaptive quadrature,Computer science,Field-programmable gate array,Real-time computing,Multiplier (economics),Modulation,Blind signal separation,Phase-shift keying
Conference
ISBN
Citations 
PageRank 
0-7695-2614-4
0
0.34
References 
Authors
5
4
Name
Order
Citations
PageRank
Ediz Çetin15313.67
Süleyman Sirri Demirsoy2578.72
Izzet Kale333062.09
Richard C. S. Morling46218.35