September 26, 2025, Friday, 03:00PM (GMT+03.00, Moscow), IKI, Room 200

Abstract:

The report is devoted to the description of the dissertation research conducted by the applicant Kruzkov D.M., which aims to develop a method for improving the accuracy of GLONASS. The accuracy level is measured using the so-called equivalent pseudo-range error, which is a nonlinear function of residual errors such as ephemeris, Earth orientation parameters, time scale drift, etc. The paper proposes a new technological cycle for satellite constellation operating, which involves conducting and processing measurements on board navigation spacecraft to solve ballistic-navigation support task. Optical and radio-technical hardware are considered as measurement tools. As a result of the algorithms and cyclograms development on the software mock-up, the possibility of reducing the error in the operational mode of GLONASS constellation is shown. Due to the presence of a number of systematic errors that hinder the implementation of the task, methods and algorithms for their evaluation have been developed using additional ground infrastructure.