Abstract | ||
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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 |
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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 Çetin | 1 | 53 | 13.67 |
Süleyman Sirri Demirsoy | 2 | 57 | 8.72 |
Izzet Kale | 3 | 330 | 62.09 |
Richard C. S. Morling | 4 | 62 | 18.35 |