Methods, Tools, and Information Technologies for Improving Glonass Characteristics.

The task of improving the GLONASS characteristics in the context of the modern competitive development of global satellite navigation systems is considered. The authors consider research and development related, firstly, to improving the signal-in-space ratio indicator in the operational mode by creating new technological cycles onboard a spacecraft (SC) and involving onboard hardware in these processes; and, secondly, with the formation of a reserve with the subsequent implementation of the functionality of orbital groupings (OGs) without downloading the ephemeris-temporal information and time-frequency corrections from the ground control complex. This article considers the main factors hindering the implementation of the currently set goals and also suggests ways to eliminate or compensate the influence of these factors by developing and implementing special information technologies using modern and promising onboard hardware placed onboard a GLONASS SC and its potential additions. [ABSTRACT FROM AUTHOR]