A Method of Interference Analysis and Avoidance for Synchronous Orbit Satellite Communication System

Abstract

The invention relates to a method for performing interference analysis and avoidance on a synchronous orbit satellite communication system, characterized by including the following steps: 1) designinga recursive orbit for medium-earth and low-earth orbit satellites in a non-synchronous orbit satellite communication system to ensure that tracks of sub-satellite points of each satellite are periodically overlapped and cross over the equator at a plurality of fixed longitude points; 2) determining a range of the synchronous orbit satellite communication system that needs to perform interferenceanalysis according to relevant protection standards of the International Telecommunication Union; 3) performing interference analysis on the synchronous orbit satellite communication system, and setting corresponding interference protection belt zones for synchronous orbit satellites; and 4) enabling an earth station of the non-synchronous orbit satellite communication system to determine whetherthe medium-earth and low-earth orbit satellites need to take avoidance measures according to predicted system parameters and the running states of each medium-earth and low-earth orbit. The method disclosed by the invention can be widely applied in the field of interference analysis and avoidance of the synchronous orbit satellite communication system.

Description

technical field [0001] The invention belongs to the technical category of interference analysis and interference avoidance in the field of satellite communication, in particular to a method for interference analysis and avoidance of a synchronous orbit satellite communication system. Background technique [0002] In recent years, with the development of the satellite business, the frequency resources used by satellites have become increasingly scarce. The International Telecommunication Union (ITU) has allocated corresponding frequency bands for satellites in different orbital positions according to the specific services of the satellites. There is a possibility of mutual interference between satellite communication systems using the same frequency band, so it is necessary to conduct interference analysis on different satellite communication systems with potential interference. For the interference situation, it is necessary to adopt interference avoidance according to the r...

AI Technical Summary

Problems solved by technology

However, due to the motion characteristics of non-geostationary orbit satellites, especially for non-returning orbit satellites in low and medium orbits, their operation rules have no obvious periodic characteristics in space, which also leads to the interference situation of geosynchronous orbit satellite systems at any time. At present, the more effective interference analysis and avoidance methods are mainly analyzed through calculation and simulation.

The corresponding interference avoidance measures are not very practical in engineering applications

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