Modeling distortion in multichannel communication systems

Author

Gharaibeh, Khaled M. ; Steer, Michael B.

Author_Institution

Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA

Volume

53

Issue

5

fYear

2005

fDate

5/1/2005 12:00:00 AM

Firstpage

1682

Lastpage

1692

Abstract

A behavioral modeling technique suited to capturing the response of wide-band multifunctional and multichannel amplifiers is introduced. The technique is based on the three-box approximation of the Volterra model and takes into account the dependence of the amplifier characteristics on frequency. The model is coupled with a new nonlinear statistical analysis, which enables accurate estimation of intermodulation and cross-modulation distortions of multiple digitally modulated signals. The model parameters can be obtained using simple measurements.

Keywords

Volterra series; code division multiple access; intermodulation distortion; power amplifiers; statistical analysis; Volterra model; amplifier characteristics; behavioral modeling; code division multiple access; cross-modulation distortions; digitally modulated signals; distortion modeling; intermodulation distortion; multichannel amplifiers; multichannel communication systems; multifunctional amplifier; nonlinear statistical analysis; power amplifiers; three-box approximation; wide-band amplifier; Broadband amplifiers; Digital modulation; Frequency; Intermodulation distortion; Multiaccess communication; Nonlinear distortion; Power amplifiers; Power system modeling; Radiofrequency amplifiers; Statistical analysis; Behavioral modeling; code division multiple access (CDMA); cross-modulation distortion; multichannel; nonlinear systems; power amplifiers; statistical modeling;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2005.847064

Filename

1427971