Direct digital predistortion on a computer controlled FPGA

Mark Sterling, Mark Bocko

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume2
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07 - Honolulu, HI, United States
Duration: Apr 15 2007Apr 20 2007

Other

Other2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
CountryUnited States
CityHonolulu, HI
Period4/15/074/20/07

Fingerprint

Intermodulation distortion
Digital radio
Power amplifiers
Field programmable gate arrays (FPGA)
Demonstrations
intermodulation
Electric potential
power amplifiers
radio frequencies
amplifiers
analogs
output
electric potential

Keywords

  • Communication system nonlinearities
  • Field programmable gate arrays
  • Microwave power amplifiers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Signal Processing
  • Acoustics and Ultrasonics

Cite this

Sterling, M., & Bocko, M. (2007). Direct digital predistortion on a computer controlled FPGA. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 2). [4217422] https://doi.org/10.1109/ICASSP.2007.366249

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

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 2 2007. 4217422.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Sterling, M & Bocko, M 2007, Direct digital predistortion on a computer controlled FPGA. in ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. vol. 2, 4217422, 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
Sterling M, Bocko M. Direct digital predistortion on a computer controlled FPGA. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 2. 2007. 4217422 https://doi.org/10.1109/ICASSP.2007.366249
Sterling, Mark ; Bocko, Mark. / Direct digital predistortion on a computer controlled FPGA. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 2 2007.
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