METHODS AND ALGORITHMS OF FREQUENCY-TIME PARAMETERS REFINEMENT AND ONBOARD CLOCK SYNCHRONIZATION FOR MODERNIZED GNSS GLONASS SPACECRAFTS WITH THE USE OF INTERSATELLITE MEASUREMENTS

摘要

The results of model computer research of opportunities and features of the intersatellite measurements (ISM) application for improvement of the frequency-time maintenance (FTM) of a global satellite navigating system (GNSS) GLONASS are presented. Methods and Algorithms of onboard intersatellite measurements processing are analyzed which can be used onboard S/C GLONASS for operation with the mutual intersatellite pseudoranges, for autonomous solution of frequency-time definition problem and for onboard Time Scales (BTS) synchronization. Also Methods and Procedures are offered for investigation and testing all the elements of these problem solution on base of the ISM.