Comparative studies of high-latitude and equatorial ionospheric scintillation characteristics of GPS signals

The ionospheric scintillation phenomenon that affect the accuracy and integrity of Global Navigation Satellite System (GNSS) is mostly observed in high-latitude and equatorial regions. Scintillation events in these two regions, however, are usually influenced by different factors and thus have different characteristics. This paper makes use of real scintillation data collected at Gakona, Alaska, and Jicamarca, Peru during the current solar maximum to investigate and compare scintillation features observed at the two locations. Based on scintillation events extracted from the raw data, several statistical distributions have been established to characterize the intensity, duration and occurrence frequency of amplitude and phase scintillation. Results confirm that scintillation at low latitudes is generally more intense and longer lasting, while high-latitude scintillation is usually dominated by phase fluctuations and shorter events. The occurrence frequency of scintillation, on the other hand, are influenced by a variety of factors.

[1]  B. H. Briggs,et al.  On the variation of radio star and satellite scintillations with zenith angle , 1963 .

[2]  Terence Bullett,et al.  A Forecasting Ionospheric Real‐time Scintillation Tool (FIRST) , 2010 .

[3]  Frank van Graas,et al.  Multi-Domain Analysis of the Impact of Natural and Man-Made Ionosphere Scintillations on GNSS signals Propagations , 2011 .

[4]  M. A. Cervera,et al.  Latitudinal and temporal variation of equatorial ionospheric irregularities determined from GPS scintillation observations , 2006 .

[5]  B. Arbesser-Rastburg,et al.  Measuring Ionospheric Scintillation in the Equatorial Region Over Africa, Including Measurements From SBAS Geostationary Satellite Signals , 2004 .

[6]  Alain Bourdillon,et al.  Ionospheric scintillation monitoring and modelling , 2009 .

[7]  Yu Morton,et al.  An Improved Ionosphere Scintillation Event Detection and Automatic Trigger for GNSS Data Collection Systems , 2012 .

[8]  P. Doherty,et al.  Statistics of GPS scintillations over South America at three levels of solar activity , 2011 .

[9]  Yu Jiao.  High Latitude Ionospheric Scintillation Characterization , 2013 .

[10]  Keith M. Groves,et al.  Specification and forecasting of scintillations in communication/navigation links: current status and future plans , 2002 .

[11]  Yu Morton,et al.  Ionosphere Scintillation Receivers Performances Based on High Latitude Experiments , 2013 .

[12]  K. Yeh,et al.  Radio wave scintillations in the ionosphere , 1982 .

[13]  Paul M. Kintner,et al.  GPS and ionospheric scintillations , 2007 .

[14]  Yu Morton,et al.  Characterization of high‐latitude ionospheric scintillation of GPS signals , 2013 .

[15]  S. Skone,et al.  Limitations in GPS receiver tracking performance under ionospheric scintillation conditions , 2001 .