Neural-network-based adaptive baseband predistortion method for RF power amplifiers

Naskas, N; Papananos, Y

dc.contributor.author	Naskas, N	en
dc.contributor.author	Papananos, Y	en
dc.date.accessioned	2014-03-01T01:21:07Z
dc.date.available	2014-03-01T01:21:07Z
dc.date.issued	2004	en
dc.identifier.issn	1057-7130	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16072
dc.subject	Baseband predistortion	en
dc.subject	Multilayer perceptron (MLP)	en
dc.subject	Neural network (NN)	en
dc.subject	Power amplifier (PA)	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Amplitude modulation	en
dc.subject.other	Backpropagation	en
dc.subject.other	Computer simulation	en
dc.subject.other	Demodulators	en
dc.subject.other	Linearization	en
dc.subject.other	Mathematical models	en
dc.subject.other	Modulators	en
dc.subject.other	Multilayer neural networks	en
dc.subject.other	Nonlinear distortion	en
dc.subject.other	Phase modulation	en
dc.subject.other	Baseband predistortion	en
dc.subject.other	Demodulator misalignment	en
dc.subject.other	Modulator misalignment	en
dc.subject.other	Power amplifiers	en
dc.title	Neural-network-based adaptive baseband predistortion method for RF power amplifiers	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/TCSII.2004.837284	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TCSII.2004.837284	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	An adaptive baseband predistortion method for RF power amplifier (PA) linearization is proposed and experimentally demonstrated. The predistortion component is implemented by a single-input dual-output multilayer perceptron (MLP). Both amplitude-to-amplitude and amplitude- to-phase distortion products are compensated by backpropagation training of the neural network including the response of the PA. Effects of modulator and demodulator imperfections on system performance are examined. Measurements on a system prototype reveal a significant linearity improvement that reaches 25 dB. © 2004 IEEE.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Circuits and Systems II: Express Briefs	en
dc.identifier.doi	10.1109/TCSII.2004.837284	en
dc.identifier.isi	ISI:000225116000008	en
dc.identifier.volume	51	en
dc.identifier.issue	11	en
dc.identifier.spage	619	en
dc.identifier.epage	623	en