A Multi-constellation Multi-Frequency GNSS Software Receiver Design for Ionosphere Scintillation Studies
نویسندگان
چکیده
ii Acknowledgements v List of Tables x List of Figures xi List of Acronyms xvii
منابع مشابه
A Usrp - Based Flexible Gnss Signal Recording and Playback System : Performance Evaluation and Study
A USRP-BASED FLEXIBLE GNSS SIGNAL RECORDING AND PLAYBACK SYSTEM: PERFORMANCE EVALUATION AND STUDY by Ruihui Di Global Navigation Satellite Systems (GNSS) signals are often subjected to both manmade and natural interferences such as RF jamming, ionosphere scintillation, multipath, and signal anomaly. In order to achieve desired navigation application performances, advanced receiver processing or...
متن کاملDevelopment of a Real-time GNSS Software Receiver for Evaluating RAIM in Multi-constellation
As Global Navigation Satellite System continues to upgrade, there will be an increasing number of satellites and signals. This offers users benefits such as increased availability and improved diversity of signal. For safetyof-life users like aviation, higher availability of integrity is the key goal. A technology providing integrity with little or no ground infrastructure overhead is receiver ...
متن کاملDirect Measurement of the Residual in the Ionosphere-Free Linear Combination during Scintillation
The natural phenomenon that most significantly affects GNSS positioning accuracy is the ionosphere. The GNSS satellite signals interact with free electrons along the propagation path to the receiver, leading to a group delay and phase advance proportional to the Total Electron Content (TEC). These refractive effects cause errors in the satellite range measurements which, if uncorrected, degrade...
متن کاملThe Impact of Satellite Time Group Delay and Inter-Frequency Differential Code Bias Corrections on Multi-GNSS Combined Positioning
We present quad-constellation (namely, GPS, GLONASS, BeiDou and Galileo) time group delay (TGD) and differential code bias (DCB) correction models to fully exploit the code observations of all the four global navigation satellite systems (GNSSs) for navigation and positioning. The relationship between TGDs and DCBs for multi-GNSS is clearly figured out, and the equivalence of TGD and DCB correc...
متن کاملGlobal Ionospheric Modelling using Multi-GNSS: BeiDou, Galileo, GLONASS and GPS
The emergence of China's Beidou, Europe's Galileo and Russia's GLONASS satellites has multiplied the number of ionospheric piercing points (IPP) offered by GPS alone. This provides great opportunities for deriving precise global ionospheric maps (GIMs) with high resolution to improve positioning accuracy and ionospheric monitoring capabilities. In this paper, the GIM is developed based on multi...
متن کامل