CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Dual-Input Nonlinear Modeling for I/Q Modulator Distortion Compensation

Haiying Cao (Institutionen för mikroteknologi och nanovetenskap ; GigaHertz Centrum) ; Ali Soltani Tehrani (Institutionen för signaler och system, Kommunikationssystem ; GigaHertz Centrum) ; Christian Fager (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik ; GigaHertz Centrum) ; Thomas Eriksson (Institutionen för signaler och system, Kommunikationssystem ; GigaHertz Centrum) ; Herbert Zirath (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik ; GigaHertz Centrum)
Proc. of IEEE Radio and Wireless Symposium 2009 (2009)
[Konferensbidrag, refereegranskat]

This paper focuses on modeling and compensation of both linear and nonlinear distortions in RF I/Q modulators using a dual-input Volterra series-based modeling approach. Moreover, dual-input memory polynomial and dual-input dynamic deviation reduction-based Volterra series models are proposed. The proposed models are evaluated by digital pre-compensation of a high performance I/Q modulator with a wideband input signal. The results show that the proposed dual-input models efficiently compensate for distortion in the I/Q modulator and may therefore greatly improve performance in modern communication systems.

Nyckelord: Digital pre-compensation, nonlinearity, I/Q imbalance, I/Q modulator, Volterra series.



Denna post skapades 2009-01-07. Senast ändrad 2016-02-01.
CPL Pubid: 83793