Time-division polynomial pre-distorter for linearisation of 1.5 T MRI power amplifier

Time-division polynomial pre-distorter for linearisation of 1.5 T MRI power amplifier

A time-division polynomial (TDP) model is proposed for modelling and linearising a 1.5 T magnetic resonance imaging (MRI) power amplifier (PA) with strong non-linearity in high input signal dynamic range. In order to demonstrate the merit of this non-linear model, a 64 dBm 1.5 T MRI PA (63.89 MHz) a...

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Bibliographic Details
Main Authors: Ming Hui, Meng Zhang, Xingang Zhang, Xiaowei Zhu, Xiupu Zhang, Jiali Cheng
Format: Article
Language:English
Published: Wiley 2017-06-01
Series:The Journal of Engineering
Subjects:
polynomials
radiofrequency power amplifiers
linearisation techniques
magnetic resonance imaging
mean square error methods
AM-PM conversion
AM-AM conversion
normalised mean square error
digital pre-distortion
NMP
nonmemory polynomial
linearisation measurement
sinc-pulse signal
nonlinear model
magnetic resonance imaging PA
TDP model
time-division polynomial model
MRI power amplifier
time-division polynomial pre-distorter
magnetic flux density 1.5 T
frequency 63.89 MHz
time 2 ms
Online Access:http://digital-library.theiet.org/content/journals/10.1049/joe.2017.0195

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http://digital-library.theiet.org/content/journals/10.1049/joe.2017.0195

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