TIME AND FREQUENCY MEASUREMENTSCONSTRUCTION OF A SYSTEM FOR PRECISEDETERMINATION OF THE POSITION OF USERSOF GLOBAL NAVIGATION SATELLITE SYSTEMS

摘要

An analysis of the components of the errors associated with determination of the positions of users of global satellite navigation systems is presented. Results of precision determination of position with the use of improved ephemeris-time information produced by a differential correction and monitoring system for GLONASS and GPS navigation satellites are presented. Conclusions concerning the outlook for the development of systems of precise point positioning derived from the radio signals of satellite systems are arrived at on the basis of the studies.