Dual loop feedback pre-distortion in satellite communication

Chengkai Tang, Baowang Lian, Vi Zhang

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Since the satellite communication goes in the trend of high-frequency and fast speed, the coefficients updahng and the precision of the traditional pre-distortion feedback methods need to be further improved. On this basis, this paper proposes dual 1oop feedback pre-distortion, which uses two first-order Volterra filter models to reduce the computing complexity and a dynamic error adjustment model to construct a revised feedback to ensure a better pre-distortion performance. The computation complexity, iterative convergence speed and precision of the proposed method are theoretically analyzed. Simulation results show that this dual loop feedback pre-distortion can speed the updating of coefficients and ensure the linearity of the amplifier output.

Original languageEnglish
Article number6587330
Pages (from-to)586-591
Number of pages6
JournalJournal of Systems Engineering and Electronics
Volume24
Issue number4
DOIs
StatePublished - Jun 2013

Keywords

  • Dual loop feedback
  • Mean square error
  • Pre-distortion
  • Satellite communication
  • Volterra filter

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