Title :
Using Volterra mapping based behavioural models to evaluate ACI and cross modulation in CDMA communication systems
Author :
Wang, Tianhai ; Brazil, Thomas J.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. Dublin, Ireland
Abstract :
This work describes the estimation of Volterra transfer functions up to fifth-order using passband CDMA excitation. We also present an analysis of the nonlinear performance of a power amplifier and its output power spectrum when excited by a CDMA signal, based on the Volterra descriptions. Finally, the method is validated by comparison between measured results and the predicted nonlinear transfer characteristics of an RF power amplifier. The techniques described are believed to be useful for component and system engineers designing power components while taking into consideration aspects such as adjacent channel interference
Keywords :
UHF power amplifiers; Volterra series; adjacent channel interference; code division multiple access; microwave power amplifiers; transfer functions; ACI evaluation; CDMA communication systems; CDMA signal; RF power amplifier; Volterra mapping based behavioural models; Volterra transfer functions; adjacent channel interference; cross modulation evaluation; nonlinear analysis; nonlinear performance; nonlinear transfer characteristics; output power spectrum; passband CDMA excitation; Multiaccess communication; Passband; Performance analysis; Power amplifiers; Power generation; Power measurement; Radio frequency; Radiofrequency amplifiers; Signal analysis; Transfer functions;
Conference_Titel :
High Frequency Postgraduate Student Colloquium, 2000
Conference_Location :
Dublin
Print_ISBN :
0-7803-6590-9
DOI :
10.1109/HFPSC.2000.874090
