Name
Abstract | ||
|---|---|---|
In digital communication modems in which a very highrate system clock is used, it is necessary to useanalog base-band shaping filters in the inphase (I)and quadrature (Q) paths of the modulator. However,this type of implementation inherently produces amismatch of the I and Q paths. In the present paper,results of the analysis of the transmitter (TX) I/Qmismatch in an Orthogonal Frequency DivisionMultiplexing (OFDM) system with Differential CoherentQuadrature Phase Shift Keying (DQPSK) modulation ispresented. Theoretical analysis shows that theSignal-to-Noise (SNR) degradation due to the I/Qmismatch can be represented by a mismatch transferfunction on the basis of which one can compute themaximum affordable amplitude and phase mismatch of theTX filters transfer functions. |
Year | DOI | Venue |
|---|---|---|
2000 | 10.1023/A:1008842314148 | Wireless Personal Communications |
Keywords | Field | DocType |
modulation,OFDM,analog filters | Transmitter,Topology,Baseband,Telecommunications,Computer science,Real-time computing,Modulation,Transfer function,Quadrature (mathematics),Analogue filter,Orthogonal frequency-division multiplexing,Phase-shift keying | Journal |
Volume | Issue | ISSN |
12 | 2 | 1572-834X |
Citations | PageRank | References |
2 | 1.07 | 2 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Maria-Gabriella Di Benedetto | 1 | 219 | 32.81 |
| Mandarini, P. | 2 | 188 | 18.08 |