Abstract
The article deals with the ways of improving the accuracy of comparison of time scales of frequency and time standards in differential mode as well as the methods and algorithms for the implementation of differential comparisons of time scales of the spatially spaced highly stable o’clock. The accuracy of the location depends on many factors. With the GLONASS fully deployed orbital structure, one of the main factors determining the accuracy of obtaining the consumer coordinates is the accuracy of the navigation information transmitted as part of the navigation frame. The navigation information accuracy is determined by the state of ephemeris-time support.
Highlights
The issues related to the use of navigation systems are widely studied [1,2,3,4,5]
The main limiting factor in improving the accuracy characteristics of the frequency and time support is the high level of instability of the GLONASS navigation spacecrafts existing onboard standards based on cesium ray tube, which is the main source of errors in forecasting operational frequency-time corrections of navigation spacecrafts
During the operation of a spacecraft in orbit, additional perturbations of the movement parameters of its center of mass and departure of the onboard time scale may occur, which will distort the ephemeris-time information available on board the spacecraft, which will lead to a deterioration in the accuracy characteristics of the consumer navigation definitions
Summary
The issues related to the use of navigation systems are widely studied [1,2,3,4,5]. The main limiting factor in improving the accuracy characteristics of the frequency and time support is the high level of instability of the GLONASS navigation spacecrafts existing onboard standards based on cesium ray tube, which is the main source of errors in forecasting operational frequency-time corrections of navigation spacecrafts.
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