Analysis and verification of time synchronization error in GPS/SINS integrated system

  • Tao Yang*
  • , Wei Wang
  • , Zhiqin Zhu
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Aiming at the fact that many researchers did not understand the concept of GPS/SINS time synchronization clearly, understanding of time synchronization was proposed. Firstly, time delay of serial navigation data relative to 1 pps of Novatel GPS receiver was measured by an oscillograph, based on which time synchronization error of GPS/SINS integrated system including this GPS receiver was estimated, which was between 0.6 s and 1.6 s. Then, a vehicle experiment was accomplished with an integrated system comprised of this receiver and a military airborne SINS. Experiment results showed that time synchronization error fitted with vehicle experiment data was about 1.1 s, which illustrated that the description on the concept of GPS/SINS integrated system time synchronization in this paper is practical.

Original languageEnglish
Pages (from-to)1181-1184
Number of pages4
JournalWuhan Daxue Xuebao (Xinxi Kexue Ban)/Geomatics and Information Science of Wuhan University
Volume34
Issue number10
StatePublished - Oct 2009

Keywords

  • Experimental demonstration
  • GPS/SINS
  • Integrated system
  • Physical concept
  • Time synchronization

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