Determining scintillation effects on GPS receivers
نویسندگان
چکیده
منابع مشابه
Ionospheric Scintillation Effects on GPS Receivers during Solar Minimum and Maximum
The ionosphere has practical importance in GPS (Global Positioning System) applications because it influences transionospheric radio wave propagation. Among various phenomena in the ionosphere, ionospheric scintillation is characterized by rapid fluctuation and fading of the received signal intensity due to electron density irregularity inside the ionosphere. Deep signal fading caused by scinti...
متن کاملEvaluation of Deep Signal Fading Effects Due to Ionospheric Scintillation on GPS Aviation Receivers
Deep and frequent GPS signal fading due to strong ionospheric scintillation is major concern for aircraft navigation in the equatorial region during solar maximum periods. Deep signal fading can break a receiver’s carrier tracking lock on a satellite channel and the satellite cannot be used for position solution until a receiver reacquires the lost channel. Frequent signal fading also causes fr...
متن کاملIonospheric Scintillation Effects on Single and Dual Frequency GPS Positioning
The low latitude ionosphere poses a challenge to both GPS users and Satellite-Based Augmentation System (SBAS) providers. Single and dual frequency GPS receivers used in low-latitude regions can suffer from rapid amplitude and phase fluctuations known as scintillation. Scintillation occurs when the GPS or SBAS satellite signal travels through small-scale irregularities in electron density in th...
متن کاملMeasured Effects of a Narrowband Interference Suppressor on GPS Receivers
Narrowband and partial-band interference can severely degrade the performance of GPS receivers. The use of digital signal processing in a receiver has been shown to provide protection against this type of interference in communications systems and has been proposed for application in future GPS systems. This paper discusses the measured effects of narrowband interference suppression on GPS rece...
متن کاملSimulation Study of GPS Phase Scintillation
Signal phase measured by GPS signal processors is crucial for high-resolution range measurement. However, the measured signal phase must be corrected for the the dispersive phase advance imposed by the earths ionosphere. Dual-frequency measurements exploit frequency dependence to isolate and correct the ionosphere-induced phase change. The correction is proportional to total electron content (...
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ژورنال
عنوان ژورنال: Radio Science
سال: 2009
ISSN: 0048-6604
DOI: 10.1029/2008rs004076