Title :
Plasma sheath phase fluctuation and its effect on GPS navigation
Author :
Ping Gao ; Xiaoping Li ; Yanming Liu ; Min Yang ; Jiao Li
Author_Institution :
Sch. of Electron. & Mech. Eng., Xidian Univ., Xi´an, China
Abstract :
The plasma sheath can potentially degrade electromagnetic systems through signal attenuation as well as increased amplitude and phase fluctuation. Utilizing electron density and collision frequency provided by NASA, transmission coefficient is calculated by the scattering matrix method and phase fluctuation is obtained. By means of Electromagnetic propagation theory and GPS software receiver, the effects of phase fluctuation by plasma sheath on GPS signal and its positioning are analyzed. Results show that the maximal percentage of variation larger than 5m is up to 14%.
Keywords :
Global Positioning System; S-matrix theory; plasma sheaths; radio receivers; GPS navigation; GPS signal; GPS software receiver; NASA; amplitude fluctuation; electromagnetic propagation theory; electron density; phase fluctuation effects; plasma sheath phase fluctuation; scattering matrix method; signal attenuation; transmission coefficient; Equations; Fluctuations; Global Positioning System; Mathematical model; Plasma sheaths; Scattering;
Conference_Titel :
Antennas, Propagation & EM Theory (ISAPE), 2012 10th International Symposium on
Conference_Location :
Xian
Print_ISBN :
978-1-4673-1799-3
DOI :
10.1109/ISAPE.2012.6408837
