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The Effects of the Ionosphere and C/A Frequency on GPS Signal Shape:Considerations for GNSS-2
Effects Ionosphere C/A Frequency GPS Signal Shape Considerations
2015/6/29
By greatly increasing the chipping rate of the pseudo random noise (prn) code, it may be possible to measure the ionosphere (TEC) in near real time, by exploiting the dispersive nature of the ionosphe...
With the successful implementation of the Wide Area Augmentation System (WAAS) for the North America, there is interest in implementing similar systems in other parts of the world. The ionosphere over...
Ionosphere Threat to LAAS: Updated Model,User Impact,and Mitigations
Ionosphere Threat LAAS Updated Model
2015/6/26
Several severe ionosphere storms have occurred in recent years that tripped the WAAS storm detector and caused partial WAAS service shutdowns. Under extreme conditions, these spatial gradients can thr...
Analysis of Ionosphere Gradient Using Japan GEONET Data
Ionosphere Gradient Japan GEONET Data
2015/6/26
Large spatial gradients in ionosphere delay are a potentially threatening error source for the Local Area Augmentation System (LAAS). Therefore a better understanding of the ionosphere behavior during...
Dual-Frequency Smoothing for CAT III LAAS:Performance Assessment Considering Ionosphere Anomalies
Dual-Frequency Smoothing CAT III LAAS Considering Ionosphere
2015/6/25
Strong ionosphere storms are the most-threatening potential fault mode for the Local Area Augmentation System (LAAS). Multi-frequency GPS techniques are known to be an effective means of reducing or r...
Wideband signals show promise for Galileo development and GPS modernization because they provide sharper correlation peaks and thus more accuracy.