Comparison of neural network adaptive predistortion techniques for satellite down links

Author

Langlet, F. ; Abdulkader, H. ; Roviras, D. ; Mallet, A. ; Castanié, F.

Author_Institution

ENSEEIHT, Toulouse, France

Volume

1

fYear

2001

fDate

2001

Firstpage

709

Abstract

In this paper, we present adaptive predistortion techniques for two satellite down links. The first link is a memoryless amplifier that gives two kind of distortions: amplitude distortion (AM/AM conversion) and phase distortion (AM/PM conversion). The second link is an amplifier with memory modeled by a memoryless amplifier followed by a linear filter. Predistortions are realized with multilayer perceptron (MLP) neural networks (NN) associated with the backpropagation (BP) algorithm. For the first down link we compare two adaptive predistorsions whereas only one predistorsion technique is applied to the second down link

Keywords

adaptive signal processing; backpropagation; memoryless systems; multilayer perceptrons; satellite links; telecommunication computing; AM/AM conversion; AM/PM conversion; BP; MLP; amplitude distortion; backpropagation; linear filter; memoryless amplifier; multilayer perceptron; neural network adaptive predistortion techniques; neural networks; phase distortion; satellite down links; Adaptive systems; Digital filters; Multilayer perceptrons; Neural networks; Nonlinear distortion; Nonlinear filters; Payloads; Phase distortion; Predistortion; Satellite broadcasting;

fLanguage

English

Publisher

ieee

Conference_Titel

Neural Networks, 2001. Proceedings. IJCNN '01. International Joint Conference on

Conference_Location

Washington, DC

ISSN

1098-7576

Print_ISBN

0-7803-7044-9

Type

conf

DOI

10.1109/IJCNN.2001.939111

Filename

939111