A convergence-free predistortion technique for adaptive linearisation of RF power amplifiers

Naskas, N; Papananos, Y

dc.contributor.author	Naskas, N	en
dc.contributor.author	Papananos, Y	en
dc.date.accessioned	2014-03-01T02:42:23Z
dc.date.available	2014-03-01T02:42:23Z
dc.date.issued	2004	en
dc.identifier.issn	0925-1030	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30974
dc.subject	Adaptive baseband predistortion	en
dc.subject	Linearisation technique	en
dc.subject	RF power amplifier	en
dc.subject.classification	Computer Science, Hardware & Architecture	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Algorithms	en
dc.subject.other	Bandwidth	en
dc.subject.other	Integrated circuits	en
dc.subject.other	Linearization	en
dc.subject.other	Nonlinear systems	en
dc.subject.other	Power amplifiers	en
dc.subject.other	Signal processing	en
dc.subject.other	Telecommunication systems	en
dc.subject.other	Adaptive baseband predistortion	en
dc.subject.other	Intermodulation products	en
dc.subject.other	Linearization technique	en
dc.subject.other	RF power amplifiers	en
dc.subject.other	Radio frequency amplifiers	en
dc.title	A convergence-free predistortion technique for adaptive linearisation of RF power amplifiers	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1023/B:ALOG.0000041628.85966.ef	en
heal.identifier.secondary	http://dx.doi.org/10.1023/B:ALOG.0000041628.85966.ef	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	Adaptive digital baseband predistortion is a well-known linearisation technique for removing inter-modulation products that radio frequency power amplifiers (PAs) introduce. This paper proposes a new baseband predistortion method that is based on a non-iterative, fast adaptation algorithm without convergence restrictions. The response of the PA in a batch of training magnitude stimuli is used for the computation of the predistortion gain. The latter is directly extracted in rectangular form without prior transformations and AM/AM and AM/PM non-linearities sequential estimation. The influence of the gain table size and the imperfections of the modulator and demodulator in the method's performance are examined. Experimental measurements of an in-house prototype show a linearity improvement of about 25 dB.	en
heal.publisher	KLUWER ACADEMIC PUBL	en
heal.journalName	Analog Integrated Circuits and Signal Processing	en
dc.identifier.doi	10.1023/B:ALOG.0000041628.85966.ef	en
dc.identifier.isi	ISI:000223914200002	en
dc.identifier.volume	41	en
dc.identifier.issue	2-3	en
dc.identifier.spage	109	en
dc.identifier.epage	118	en