Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-18T00:14:18.905Z Has data issue: false hasContentIssue false
  • English
  • Français

High Accuracy Pseudolite-based Navigation System: Compensating for Right-Hand Circularly Polarized Effect

Published online by Cambridge University Press:  06 April 2006

Haeyoung Jun  and
Changdon Kee
Haeyoung Jun
Affiliation:
Seoul National University, Republic of Korea. Email: [email protected], [email protected]
Changdon Kee
Affiliation:
Seoul National University, Republic of Korea. Email: [email protected], [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

This paper presents further research on the SNUGL pseudolite-based navigation system presented in this journal in 2003. This system has centimetre-level accuracy, but has an error source arising from right-hand circularly polarized (RHCP) transmissions, unlike outdoor Global Positioning System (GPS). The GPS satellites and pseudolites use RHCP signals, and the polarization affects carrier-phase measurements according to the Line-of-Sight (LOS) vectors from transmitters to receivers. The RHCP error is eliminated by a double differencing process in outdoor GPS, but the error remains in the pseudolite-based system because the LOS vectors from transmitters to a reference and user receivers are different for the close transmitter constellations. This paper shows the RHCP effect on the pseudolite-based navigation system through simulations and experiments. It then shows the RHCP-compensation method improves the measurement and position accuracy by over 10%.

Keywords

GPSPseudoliteIndoor NavigationRHCP
Type
Research Article
Information
The Journal of Navigation , Volume 59 , Issue 2 , May 2006 , pp. 307 - 320
Copyright
2006 The Royal Institute of Navigation

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)