Methods, tools and information technologies for improving GLONASS characteristics

GLONASS characteristics improving task in the context of 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 an operational mode by creating new technological cycles on board the spacecraft and involving on-board hardware in these processes, and, secondly, with the formation of a reserve to orbital groupings functionality subsequent implementation without downloading ephemeris-temporal information and time-frequency corrections from the ground control complex. The article considers the main factors hindering the implementation of the currently set goals, and also suggests ways to eliminate or level the influence of these factors by developing and implementing special information technologies using modern and promising on-board hardware placed on board the GLONASS spacecraft and its potential additions.