Maximum-likelihood ambiguity resolution based on Bayesian principle

J. Zhu, Xiaoli Ding, Y. Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

17 Citations (Scopus)


Based on the Bayesian principle and the fact that GPS carrier-phase ambiguities are integers, the posterior distribution of the ambiguities and the position parameters is derived. This is then used to derive the maximum posterior likelihood solution of the ambiguities. The accuracy of the integer ambiguity solution and the position parameters is also studied according to the posterior distribution. It is found that the accuracy of the integer solution depends not only on the variance of the corresponding float ambiguity solution but also on its values.
Original languageEnglish
Pages (from-to)185-187
Number of pages3
JournalJournal of Geodesy
Issue number4
Publication statusPublished - 1 Jan 2001


  • Bayesian estimation
  • Maximum likelihood
  • Mean square error

ASJC Scopus subject areas

  • Computers in Earth Sciences
  • Geochemistry and Petrology
  • Geophysics


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