Time-domain Adaptive Compensation for Nonlinear Distortion of High Power Amplifiers

Yuanming Ding, Hiromitsu Ohmori, Akira Sano

Research output: Contribution to journalConference article

13 Citations (Scopus)

Abstract

This paper is concerned with a new time-domain adaptive predistortion scheme for compensating nonlinearity of high power amplifiers (HPA). A Hammerstein model is adopted to approximate expression of the input-output nonlinear distortion of HPA by using complex polynomial series followed by linear dynamical distortion. According to the Hammerstein model structure, the compensation input to HPA is calculated in a real-time manner so that the linearization from the predistorter input to the HPA output can be attained even if the nonlinear input-output relation of HPA is uncertain and changeable. The effectiveness of the proposed adaptive scheme is validated in numerical simulations.

Original languageEnglish
Pages (from-to)356-361
Number of pages6
JournalProceedings of the American Control Conference
Volume1
Publication statusPublished - 2003 Nov 6
Event2003 American Control Conference - Denver, CO, United States
Duration: 2003 Jun 42003 Jun 6

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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