Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 1997, IEEE 47th
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-3659-3
DOI :
10.1109/VETEC.1997.600413
