MILA - A noise mitigation technique for RF power amplifier linearization
Paper i proceeding, 2014

Standard indirect learning architecture (ILA) based methods for estimating the parameters in digital pre-distortion produce biased estimates of the parameters due to noise. This paper proposes using a direct model of the power amplifier to generate a noise-free estimate of the output signal and subsequently use this estimated signal to extract the parameters of the pre-distorter using the ILA. Measurement results shows that this technique improves the performance of the pre-distorter for all signal-to-noise ratios, but especially in the range of 20-30 dB signal-to-noise ratio.

Power amplifier

noise

predistortion

nonlinear distortion

Författare

Per Landin

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Annika Mayer

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Thomas Eriksson

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

2014 IEEE 11th International Multi-Conference on Systems, Signals and Devices, SSD 2014

6808874

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/SSD.2014.6808874

ISBN

978-1-4799-3866-7

Mer information

Senast uppdaterat

2018-11-29