Abstract
The experimental studies of the GPS and GLONASS satellite signal singularities, depending on the spatial and time distributions of auroras and geomagnetic disturbances that mark the polar ionosphere current state, are presented. The experimental evidences for positioning errors, related to the spatial–time variations in auroral arcs, are demonstrated. These errors of the navigation systems are observed in an increase in the positioning errors and in a violation of the system integrity. It has been indicated that auroral rayed arcs are indicators of disturbances in the navigation system operation. We tried to explain this fact in the scope of the concept of navigation signal phase fluctuations caused by total electron content inhomogeneities along geomagnetic field lines.
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