DocumentCode :
2864261
Title :
Mitigation of the effect of ionospheric scintillation on differential GPS rangefinding
Author :
Ali, Mohd Tarmizi ; Rashid, Nur Emileen Abd ; Strangeways, H.J.
Author_Institution :
Fac. Electr. Eng., Universiti Teknologi MARA, Selangor, Malaysia
fYear :
2004
fDate :
5-6 Oct. 2004
Firstpage :
45
Lastpage :
49
Abstract :
The phenomenon of the scintillation of radiowave propagation producing irregularities in the equatorial ionosphere is discussed in this paper. Based on a dual frequency data for fluctuations along the path of GPS signals through the equatorial station, sampled at a rate of 1 Hz, are used to investigate the phase scintillation phenomenon. Statistical parameters of the signal such as the scintillation index, autocorrelation function, cross-correlation function, power spectrum density, spectral index, etc., are investigated. Experimental results concerning phase scintillation in the ionosphere structure are presented and has been demonstrated by using the MATLAB® program. Theoretical results are compared to observational data taken from the equatorial region. Both correlation function and power spectral density analyses are considered. Finally, some future effects in ionospheric scintillation studies in the areas of transionospheric communication are recommended.
Keywords :
Global Positioning System; UHF radio propagation; correlation theory; distance measurement; ionospheric electromagnetic wave propagation; spectral analysis; MATLAB program; autocorrelation function; cross-correlation function; differential GPS rangefinding; equatorial ionosphere; ionospheric scintillation; phase scintillation; power spectrum density; radiowave propagation; scintillation index; spectral index; statistical parameters; transionospheric communication; Computer languages; Degradation; Electrons; Fading; Fluctuations; Frequency; Global Positioning System; Ionosphere; Satellite broadcasting; Spectral analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
RF and Microwave Conference, 2004. RFM 2004. Proceedings
Print_ISBN :
0-7803-8671-X
Type :
conf
DOI :
10.1109/RFM.2004.1411071
Filename :
1411071
Link To Document :
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