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Research on Ground Station Selection for Ka-band Satellite Communication Considering Rain Attenuation

As an important development trend of satellite communication networks in the future, Ka-band satellite communication has the characteristics of wide bandwidth, high speed, excellent anti-interference performance and small equipment. However, there is a disadvantage that Ka-band signals are easily affected by rain attenuation, so it is necessary to reasonably select ground stations to avoid this attenuation. This paper first introduces the general function and site selection principle of ground stations and analyzes the problems of these ground stations. Then, this paper presents the site selection method of Ka-band ground stations from the two aspects of the site selection process and average accessible rate calculation, considering rain attenuation. Finally, the actual average transmission rates of some possible ground stations in China are calculated under the constraints of some parameters given by a Ka-band MEO satellite constellation.