Title :
Forecasting of ionospheric scintillations of GPS L-band signals over an Indian low latitude station
Author :
Sarma, A.D. ; Swamy, K.C.T. ; Somasekhar Rao, P.V.D.
Author_Institution :
Dept. of Electron. & Commun. Eng., Chaitanya Bharathi Inst. of Technol. (CBIT), Hyderabad, India
Abstract :
The effect of scintillations on the performance of Global Navigation Satellite System (GNSS) receiver ranges from degradation of positioning accuracy to complete loss of signal lock. Therefore, identification of adverse ionospheric scintillation propagation paths and their avoidance is helpful in maintaining uninterrupted positioning services. Based on Holt-Winter method, analysis is carried out for Hyderabad station (17.44°N, 78.47°E). The considered data corresponds to 9 days (9d) and 27 days (27d) cycles and the results are compared with observed scintillations. The absolute errors are insignificant and the overall results are encouraging in short-term forecasting of the scintillations.
Keywords :
Earth rotation; Global Positioning System; ionospheric electromagnetic wave propagation; radio receivers; radiowave propagation; GNSS receiver; GPS L-band signal; Global Navigation Satellite System receiver; Holt-Winter method; Hyderabad station; Indian low latitude station; adverse ionospheric scintillation propagation path identification; ionospheric scintillation forecasting effect; positioning accuracy degradation; time 27 day; time 9 day; uninterrupted positioning service maintainance; Additives; Databases; Forecasting; Global Positioning System; Mathematical model; Predictive models; Receivers;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904464
