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.

noise

nonlinear distortion

Power amplifier

predistortion

Författare

Per Landin

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Annika Mayer

Chalmers University of Technology

Thomas Eriksson

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, 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