Simulation of the Interference Causedby a GlobalStar-Leo Satellite System in a Terrestrial Station Using Matlab (Original)

Abstract

The aim of the present work was to simulate through the Matlab mathematical tool the behavior of the interferences caused by a satellite system in a ground station. For the investigation, the GlobalStar-LEO system of 48 satellites operating in the 11 GHz band was selected. Some parameters of the interfering satellites and the orbit were determined; average anomaly, eccentric anomaly, true anomaly, satellite movement, longitude and latitude, while for the calculation of the interference of each satellite on the fixed land system were determined; the angles of visibility, the ratio between the interfering signal and the level of noise in the receiver for each one of them. Obtained these parameters it was possible to simulate the probability density function of the GlobalStar system interference on the ground station. It is concluded that the mathematical model in conjunction with the software allows simulating the interference produced by a satellite system in low orbit.