Modeling of zones of unstable work of radiosystem with active response during reapproaching and joining spaceships with International Space Station

Modeling of zones unstable work of radiosystem with active response “Kurs”, which is installed on International Space Station to support docking spaceships to station in automatic mode is considered. The method of modeling, based on the physical optics approximation of electromagnetic waves emitted by antennas of radiosystem are proposed. During modeling wave reflection from station surface and possible shadowing are taking in account. The algorithm modeling is proposed. Special attention is paid to implementation details and testing results of developed program package are presented.