Performance analysis of blind adaptive phase offset correction based on dispersion minimization

Wonzoo Chung, William A. Sethares, C. Richard Johnson

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


This paper presents an analysis of the performance and behavior of a blind adaptive carrier phase offset recovery scheme based on dispersion minimization (DM). The algorithm, called the DM-derotator, is a kind of simple equalizer that attempts to correct the carrier phase offset by minimizing the dispersion of the projection of the real part of the (complex) data signal. The recent application of this algorithm to digital broadcasting signals motivates our analysis. This paper classifies the stationary points of the DM-derotator for a variety of source signals including digital vestigial side band (VSB) and quadrature amplitude modulation (QAM) and discusses initialization strategies. The analysis is extended to a variety of situations including i) its behavior in the presence of intersymbol interference, ii) its behavior when there is statistical dependence between the in-phase and quadrature components, and iii) its tracking ability.

Original languageEnglish
Pages (from-to)1750-1759
Number of pages10
JournalIEEE Transactions on Signal Processing
Issue number6
Publication statusPublished - 2004 Jun
Externally publishedYes


  • Adaptive receiver design
  • Blind adaptive algorithm
  • Carrier phase offset
  • Constant modulus
  • Dispersion minimization

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering


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