Epoch-by-epoch GPS ambiguity processing for local network-based positioning

Joz Wu, Yang Zen Chen, Ming Yang

Research output: Contribution to journalArticlepeer-review


When processing code-and carrier-phase ranges sampled at individual epochs, the control baseline of a pair of reference receivers can bring forth relative integer-valued ambiguities and tropospheric delays. The estimates are usually so accurate that they may act as constraints, when a roving user who operates in the network of references requires instantaneous position solutions. This paper has the objective of taking advantage of a tropospheric zenith delay surface for the users ranging corrections. A local network of six reference stations was used to study the single-epoch position estimation, which revealed that with the increased reliability of ambiguity resolution on both L1 and L2 carriers, global positioning system-derived height accuracy was refined by more than 60%.

Original languageEnglish
Pages (from-to)799-806
Number of pages8
JournalJournal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A
Issue number6
Publication statusPublished - 2014 Aug 18

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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