Interference Analysis between LEO and GSO Satellites at Ku Band Frequency: Case Study on Starlink and Telkom-3S

Abstract

We investigate the aggregate interference caused by large scale NGSO constellations to GSO systems. We propose starlink and Telkom-3S satellite as a case study. We utilize the TLE, a (near-) real-time orbital elements, and simulate the downlink interference scenario. Based on the simulation results, we found that in the range of latitude 0 to 40°N, the higher the latitude of the GSO receiver, the less the number of interference events. We also observe that the EPFD will exceed the interference limit recommended by ITU-R article 22.