Predistortion for Wideband Nonlinear Satellite Downlinks

被引：8

作者：

Layton, Kelvin J. ^{[1
]}

Mehboob, Azam ^{[1
]}

Akhlaq, Assad ^{[1
]}

Bagaglini, Flaviano ^{[2
]}

Cowley, William G. ^{[1
]}

Lechner, Gottfried ^{[1
]}

机构：

[1] Univ South Australia, Inst Telecommun Res, Mawson Lakes, SA 5095, Australia

[2] Thales Alenia Space, I-00131 Rome, Italy

来源：

IEEE COMMUNICATIONS LETTERS | 2017年 / 21卷 / 09期

基金：

澳大利亚研究理事会;

关键词：

Nonlinear satellite channels; digital predistortion; Volterra series; equalization; OMUX filter; MEMORY; AMPLIFIERS; SYSTEMS;

D O I：

10.1109/LCOMM.2017.2710339

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this letter, an efficient predistortion scheme is proposed to compensate imperfections in a satellite channel due to the nonlinear power amplifier and the output channel filter. The predistorter is a Wiener system consisting of the linear and nonlinear components, which are trained independently. The predistorter is well suited to systems where the data bits are generated onboard the satellite. The proposed setup effectively compensates the distortions and has lower complexity compared with other strategies.

引用

页码：1985 / 1988

页数：4

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