Reduced global positioning system (GPS) positioning error by mitigating ionospheric scintillation

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

1 Citation (Scopus)

Abstract

GPS has diverse application in current globalized world, its application has pervasive benefits not only to navigation and positioning, it is pivotal in industries like logistics, shipping, financial services and agriculture. Since the decision to shut down the Selectivity Availability (SA) by former U.S. President, Bill Clinton, ionospheric effect is now the primary concern of error contributing factors in GPS. Ionospheric scintillation induces rapid fluctuations in the phase and the amplitude of received GNSS signals. These rapid fluctuations or scintillation potentially introduce cycle slips, degrade range measurements, and if severe enough lead to loss of lock in phase and code. Global Ionospheric Scintillation Model (GISM) was used to compute amplitude scintillation parameter for each GPS satellite visible from Melaka, Malaysia (Latitude 20 14' N, Longitude 1020 16' E) as its location has strong equatorial scintillation behavior. The output data from GISM was then used to calculate the positioning error where it is depends on the Dilution of Precision (DOP) and User Equivalent Range Error (UERE). There are five schemes that were used. First, the positioning error was calculated for all the visible satellites with mask angle > 50• Secondly, the positioning error was calculated for 6 satellites that having lowest UERE. Thirdly, the positioning error was calculated for all the visible satellites with mask angle > 100. Fourthly, the positioning error was calculated for those satellites that have amplitude scintillation index, S4 <0.7. Lastly, the positioning error was calculated for those satellite having outliers> 10% of mean S4 for all satellites. Comparison of results from these schemes were then made.

Original languageEnglish
Title of host publication2014 IEEE Symposium on Wireless Technology and Applications, ISWTA 2014
PublisherIEEE Computer Society
Pages110-115
Number of pages6
ISBN (Electronic)9781479954360
DOIs
Publication statusPublished - 9 Dec 2014
Event2014 IEEE Symposium on Wireless Technology and Applications, ISWTA 2014 - Kota Kinabalu, Malaysia
Duration: 28 Sep 20141 Oct 2014

Other

Other2014 IEEE Symposium on Wireless Technology and Applications, ISWTA 2014
CountryMalaysia
CityKota Kinabalu
Period28/9/141/10/14

Fingerprint

Scintillation
Global positioning system
Satellites
Masks
Freight transportation
Agriculture
Dilution
Logistics
Navigation
Availability

Keywords

  • GPS
  • Positioning Error
  • Scintillation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Science Applications
  • Signal Processing

Cite this

Ho, Y. H., & Sabirin, A. (2014). Reduced global positioning system (GPS) positioning error by mitigating ionospheric scintillation. In 2014 IEEE Symposium on Wireless Technology and Applications, ISWTA 2014 (pp. 110-115). [6981167] IEEE Computer Society. https://doi.org/10.1109/ISWTA.2014.6981167

Reduced global positioning system (GPS) positioning error by mitigating ionospheric scintillation. / Ho, Y. H.; Sabirin, Abdullah.

2014 IEEE Symposium on Wireless Technology and Applications, ISWTA 2014. IEEE Computer Society, 2014. p. 110-115 6981167.

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

Ho, YH & Sabirin, A 2014, Reduced global positioning system (GPS) positioning error by mitigating ionospheric scintillation. in 2014 IEEE Symposium on Wireless Technology and Applications, ISWTA 2014., 6981167, IEEE Computer Society, pp. 110-115, 2014 IEEE Symposium on Wireless Technology and Applications, ISWTA 2014, Kota Kinabalu, Malaysia, 28/9/14. https://doi.org/10.1109/ISWTA.2014.6981167
Ho YH, Sabirin A. Reduced global positioning system (GPS) positioning error by mitigating ionospheric scintillation. In 2014 IEEE Symposium on Wireless Technology and Applications, ISWTA 2014. IEEE Computer Society. 2014. p. 110-115. 6981167 https://doi.org/10.1109/ISWTA.2014.6981167
Ho, Y. H. ; Sabirin, Abdullah. / Reduced global positioning system (GPS) positioning error by mitigating ionospheric scintillation. 2014 IEEE Symposium on Wireless Technology and Applications, ISWTA 2014. IEEE Computer Society, 2014. pp. 110-115
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