Local asymptotic mixed normality for discretely observed non-recurrent Ornstein-Uhlenbeck processes

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Consider non-recurrent Ornstein-Uhlenbeck processes with unknown drift and diffusion parameters. Our purpose is to estimate the parameters jointly from discrete observations with a certain asymptotics. We show that the likelihood ratio of the discrete samples has the uniform LAMN property, and that some kind of approximated MLE is asymptotically optimal in a sense of asymptotic maximum concentration probability. The estimator is also asymptotically efficient in ergodic cases.

Original languageEnglish
Pages (from-to)193-211
Number of pages19
JournalAnnals of the Institute of Statistical Mathematics
Issue number1
Publication statusPublished - 2012 Feb
Externally publishedYes



  • Asymptotic optimality
  • Discrete observations
  • Joint estimation
  • Non-recurrency
  • Ornstein-Uhlenbeck processes
  • ULAMN property

ASJC Scopus subject areas

  • Statistics and Probability

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