Performance of a Doppler-aided GPS navigation system for aviation applications under ionospheric scintillation

Tsung Yu Chiou, Jiwon Seo, Todd Walter, Per Enge

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Citations (Scopus)

Abstract

Aircraft landing using the Global Positioning System (GPS) in equatorial regions is more difficult than in other regions because ionospheric scintillation is prevalent. Ionospheric scintillation causes amplitude fades of 20 dB or more and an increase in the phase jitter. This research evaluates techniques to enhance a GPS receiver for overcoming ionospheric scintillation. To validate the designed GPS receiver, a GPS channel model for aircraft landing in equatorial regions is built based on the use of high fidelity GPS constellation simulator, clock emulator, and real ionosphere interfered with GPS data collected in an equatorial region. The results of this research demonstrate that the integration of a GPS receiver with a low-cost inertial navigation system provides the capability to operate continuously during the periods of strong scintillation. In addition, so-called vector processing also shows promise for less severe scintillation environment. Various combinations of receiver tracking architectures and aiding methods have been conducted to quantify the sensitivity improvement of an "aided" GPS receiver.

Original languageEnglish
Title of host publication21st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2008
Pages490-498
Number of pages9
Publication statusPublished - 2008 Dec 1
Event21st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2008 - Savannah, GA, United States
Duration: 2008 Sep 162008 Sep 19

Publication series

Name21st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2008
Volume1

Other

Other21st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2008
CountryUnited States
CitySavannah, GA
Period08/9/1608/9/19

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All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Aerospace Engineering
  • Communication

Cite this

Chiou, T. Y., Seo, J., Walter, T., & Enge, P. (2008). Performance of a Doppler-aided GPS navigation system for aviation applications under ionospheric scintillation. In 21st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2008 (pp. 490-498). (21st International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2008; Vol. 1).