Direct digital predistortion on a computer controlled FPGA

Mark Sterling; Mark Bocko

doi:10.1109/ICASSP.2007.366249

Direct digital predistortion on a computer controlled FPGA

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We report on the development of direct digital radio frequency predistortion techniques for high power amplifiers and their demonstration in a MF band FPGA-based system. The basic component of our work is a nonlinear cubic voltage characteristic which is realized digitally by means of a look-up table. This method is situated in the context of existing baseband and analog predistortion techniques. In particular, we demonstrate our results experimentally and show a relationship between the bit-depth of our look-up table and the size of intermodulation distortions in the output of a class A amplifier.

Original language	English
Title of host publication	2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
Pages	II369-II372
DOIs	https://doi.org/10.1109/ICASSP.2007.366249
Publication status	Published - Aug 6 2007
Externally published	Yes
Event	2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07 - Honolulu, HI, United States Duration: Apr 15 2007 → Apr 20 2007

Publication series

Name	ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume	2
ISSN (Print)	1520-6149

Other

Other	2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
Country	United States
City	Honolulu, HI
Period	4/15/07 → 4/20/07

Keywords

Communication system nonlinearities
Field programmable gate arrays
Microwave power amplifiers

ASJC Scopus subject areas

Software
Signal Processing
Electrical and Electronic Engineering

Access to Document

10.1109/ICASSP.2007.366249

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Direct digital predistortion on a computer controlled FPGA. / Sterling, Mark; Bocko, Mark.

2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07. 2007. p. II369-II372 4217422 (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Sterling, M & Bocko, M 2007, Direct digital predistortion on a computer controlled FPGA. in 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07., 4217422, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, vol. 2, pp. II369-II372, 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07, Honolulu, HI, United States, 4/15/07. https://doi.org/10.1109/ICASSP.2007.366249

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abstract = "We report on the development of direct digital radio frequency predistortion techniques for high power amplifiers and their demonstration in a MF band FPGA-based system. The basic component of our work is a nonlinear cubic voltage characteristic which is realized digitally by means of a look-up table. This method is situated in the context of existing baseband and analog predistortion techniques. In particular, we demonstrate our results experimentally and show a relationship between the bit-depth of our look-up table and the size of intermodulation distortions in the output of a class A amplifier.",

keywords = "Communication system nonlinearities, Field programmable gate arrays, Microwave power amplifiers",

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AB - We report on the development of direct digital radio frequency predistortion techniques for high power amplifiers and their demonstration in a MF band FPGA-based system. The basic component of our work is a nonlinear cubic voltage characteristic which is realized digitally by means of a look-up table. This method is situated in the context of existing baseband and analog predistortion techniques. In particular, we demonstrate our results experimentally and show a relationship between the bit-depth of our look-up table and the size of intermodulation distortions in the output of a class A amplifier.

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Direct digital predistortion on a computer controlled FPGA

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Keywords

ASJC Scopus subject areas

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