A new approach to achieving high-performance power amplifier linearization

Joel Goodman, Benjamin A. Miller, Gil Raz, Matthew Herman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Digital baseband predistortion (DBP) is not particularly well suited to linearizing wideband power amplifiers (PAs); this is due to the exorbitant price paid in computational complexity. One of the underlying reasons for the computational complexity of DBP is the inherent inefficiency of using a sufficiently deep memory and a high enough polynomial order to span the multidimensional signal space needed to mitigate PA-induced nonlinear distortion. Therefore we have developed a new mathematical method to efficiently search for and localize those regions in the multidimensional signal space that enable us to invert PA nonlinearities with a significant reduction in computational complexity. Using a wideband Code Division Multiple Access (CDMA) signal we demonstrate and compare the PA linearization performance and computational complexity of our algorithm to that of conventional DBP techniques using measured results.

Original languageEnglish
Title of host publicationIEEE 2007 Radar Conference
Pages840-845
Number of pages6
DOIs
StatePublished - 2007
Externally publishedYes
EventIEEE 2007 Radar Conference - Waltham, MA, United States
Duration: 17 Apr 200720 Apr 2007

Publication series

NameIEEE National Radar Conference - Proceedings

Conference

ConferenceIEEE 2007 Radar Conference
Country/TerritoryUnited States
CityWaltham, MA
Period17/04/0720/04/07

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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