Low-complexity feedforward symbol timing estimator using conditional maximum-likelihood principle

Yik Chung Wu, Erchin Serpedin

Research output: Contribution to journalArticle

10 Citations (Scopus)


A low complexity feedforward symbol-timing estimator based on the conditional maximum-likelihood principle is proposed. An approximation is applied to the Fourier series expansion of the conditional maximum-likelihood function such that implementation complexity is greatly reduced. It is shown that the proposed estimator can be viewed as a generalization of the well-known square nonlinearity estimator proposed by Oerder and Meyr in 1988. Simulation results show that the performance of the proposed estimator is very close to the conditional Cramer-Rao bound and is better than that of the square nonlinearity estimator.

Original languageEnglish
Pages (from-to)168-170
Number of pages3
JournalIEEE Communications Letters
Issue number3
Publication statusPublished - 1 Mar 2004



  • Estimator
  • Maximum likelihood
  • Timing delay

ASJC Scopus subject areas

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

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