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Modeling and analysis of GPS carrier tracking error in the presence of single multipath

  • Lan Cheng*
  • , Jie Chen
  • , Gang Xie
  • *Corresponding author for this work
  • Taiyuan University of Technology
  • Beijing Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

In order to study the influence of multipath code tracking error on multipath carrier tracking error, the multipath carrier error of Costas carrier tracking loop was analyzed when the non-coherent early minus late power mode code tracking loop was used, and the multipath error model of Costas loop was established in the presence of single multipath. The established model indicates that the influence of multipath code tracking error on multipath carrier tracking error can be expressed as the influence of multipath parameters and correlation space on carrier tracking error. The theory analysis and simulation results show that the mean carrier tracking error is zero in the presence of single multipath, and the maximal carrier tracking error is less than π/2 when the correlation space is smaller than one chip. It also indicates that the multipath parameters have more influence on the carrier tracking error than the correlation space.

Original languageEnglish
Pages (from-to)283-288
Number of pages6
JournalBeijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume34
Issue number3
StatePublished - Mar 2014
Externally publishedYes

Keywords

  • Carrier tracking loop
  • Error modeling
  • Multipath error
  • Non-coherent code tracking loop

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