RESULTS OF A FLIGHT EXPERIMENT ON ISS TO STUDY THE EFFECTS OF RE-REFLECTIONS ON THE HANDLING OF NAVIGATION, ATTITUDE CONTROL AND RENDEZVOUS TASKS BASED ON THE MEASUREMENTS OF SATELLITE NAVIGATION EQUIPMENT

摘要

Reviewed are the analysis results of Satellite Navigation Equipment (SNE) data obtained in a flight experiment on the International Space Station (ISS) simultaneously from three Navigation Receivers (NR) at different configurations of major re-reflecting elements of ISS - Solar Arrays (SA) of the US segment of the station. It is shown that re-reflections result in significant errors in pseudorange, phase change, as well as in errors in determining ISS coordinates and velocity. These errors differ significantly for different NRs and heavily depend on the SA configuration. Proposed are methods for significantly reducing the effects of re-reflections on the handling of navigation, attitude control and relative navigation tasks during SC rendezvous. The proposed methods were developed using SNE measurements obtained in a flight experiment. Determined were the actual accuracy characteristics of the navigation tasks, which are proposed for introduction into the satellite navigation equipment being developed for Soyuz and Progress.