The space-time correlation of absolute errors in determination of coordinates of SRNS users in various geophysical conditions

V. V. Demyanov; I. F. Gamayunov; E. L. Afraimovich; A. M. Aleshechkin

doi:10.3103/S0735272707050044

Authors

V. V. Demyanov Irkutsk Military Aviation Engineering Institute, Russian Federation
I. F. Gamayunov Irkutsk Military Aviation Engineering Institute, Russian Federation
E. L. Afraimovich Institute of Solar-Earth Physics SB RAN, Russian Federation
A. M. Aleshechkin Institute of Engineering Physics and Radio Electronics of Siberian Federal University, Russian Federation

DOI:

https://doi.org/10.3103/S0735272707050044

Abstract

The paper presents results of experimental estimation of space-time correlation radii of absolute errors in determination of rectangular geocentric coordinates of users of satellite radio-navigation systems under various geophysical conditions. During magnetic storms, the radius of spatial correlation of errors of coordinates’ determination decreases roughly by a factor of 1.3 against the calm (non-perturbed) conditions. The radius of time correlation of errors under calm conditions is roughly 1.5 times larger than in the periods of geomagnetic disturbance. The paper illustrates a possibility for implementation of wide-area augmentation systems of satellite navigation based on the already existing worldwide network of GPS stations.

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