Amplifier linearization using a new digital predistorter for digital mobile radio systems

Author

de Mingo, Jesus ; Valdovinos, Antonio

Author_Institution

Centro Politecnico Superior, Zaragoza Univ., Spain

Volume

2

fYear

1997

fDate

4-7 May 1997

Firstpage

671

Abstract

This paper presents some simulation results based in the well known predistortion technique of the baseband signal to reduce the adjacent channel interference (ACI). This known effect is produced by a typical nonlinear device (power amplifier) when a varying envelope modulation scheme is used

Keywords

adaptive signal processing; adjacent channel interference; digital radio; interference suppression; land mobile radio; linearisation techniques; nonlinear network synthesis; power amplifiers; radiofrequency amplifiers; radiofrequency interference; table lookup; AM-AM conversion; AM-PM conversion; adaptive algorithm; adjacent channel interference; amplifier linearization; baseband signal; digital mobile radio systems; digital predistorter; envelope modulation; look up table; nonlinear device; power amplifier; predistortion technique; simulation results; Baseband; Calibration; Interchannel interference; Land mobile radio; Mobile communication; Power amplifiers; Predistortion; Signal processing; Signal processing algorithms; Table lookup;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.600413

Filename

600413