Compatibility multi-dimensional analysis method for geostationary satellite orbit systems

Aiming at the compatibility analysis between GSO (geostationary satellite orbit) satellite systems, uplink and downlink interference scenarios were designed between single-beam and multi-beam GSO satellite systems, and GSO satellite systems interference was evaluated on multiple dimensions, such as satellite orbital position, system link availability, and interference system's earth stations location. Recommendations were proposed on the nearest location of interference system's earth stations at different orbital intervals, which met International Telecommunication Union limit. The granularity of each dimension was refined. Different dimensions were compared horizontally, and interference variation characteristic curves and the influence level of each dimension were analyzed. When link availability was fixed, the interference value changed slowly with the orbital interval at >2°, the interference value changed rapidly with the interval at ≤2°, especially when the interval was at≤0.1°, the interference value rose sharply. Taking network data of the CHNSAT-81.5 and INSAT-KA82.5E satellites registered by the International Telecommunication Union as examples, the interference-to-noise ratio and the carrier-to-interference ratio were compared with Visualyse, the result error was kept in the range of 0.7 dB with an effective evaluation performance. © 2022, NUDT Press. All right reserved.