An adaptive power amplifier lineariser based on a multilayer perceptron

Naskas, N; Papananos, Y

dc.contributor.author	Naskas, N	en
dc.contributor.author	Papananos, Y	en
dc.date.accessioned	2014-03-01T02:42:12Z
dc.date.available	2014-03-01T02:42:12Z
dc.date.issued	2003	en
dc.identifier.issn	07400551	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30852
dc.subject	Baseband predistortion	en
dc.subject	Multilayer perceptron	en
dc.subject	Neural network	en
dc.subject	Power amplifier	en
dc.subject.other	Backpropagation	en
dc.subject.other	Channel capacity	en
dc.subject.other	Multilayer neural networks	en
dc.subject.other	Phase modulation	en
dc.subject.other	Signal interference	en
dc.subject.other	Multilayer perceptron	en
dc.subject.other	Power amplifiers	en
dc.title	An adaptive power amplifier lineariser based on a multilayer perceptron	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/VETECS.2003.1207844	en
heal.identifier.secondary	http://dx.doi.org/10.1109/VETECS.2003.1207844	en
heal.publicationDate	2003	en
heal.abstract	In this paper, a RF power amplifier (PA) linearisation method based on a multilayer perceptron (MLP) neural network is proposed. The method is an alternative to the digital baseband predistortion. The predistortion component is a single MLP with a dual output and single input. For the training of the MLP the response of the PA, in a training ramp, and the backpropagation (BP) training algorithm are used. After the training process, the MLP is capable of compensating both the amplitude-to-amplitude (AM/AM) and amplitude-to-phase modulation (AM/PM) that PA introduces. A method's prototype has been constructed; this is according to the authors' knowledge the first published experimental PA predistorter that employs MLP. Measurement results reveal a considerable improvement in the adjacent channel interference (ACI) that reaches 25dB.	en
heal.journalName	IEEE Vehicular Technology Conference	en
dc.identifier.doi	10.1109/VETECS.2003.1207844	en
dc.identifier.volume	57	en
dc.identifier.issue	2	en
dc.identifier.spage	1331	en
dc.identifier.epage	1334	en