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简要介绍了卫星移动通信系统在国内外的发展现状,通过对GEO轨道和中低轨道的比较分析体现GEO轨道系统在区域性卫星移动通信中的优势,对GEO区域覆盖卫星移动通信系统中涉及的关键技术——星上处理进行了详细的分析,并简要介绍了天线技术。
The status quo of satellite mobile communication systems at home and abroad is briefly introduced. By comparative analysis of GEO orbitals and low orbit, the advantages of GEO orbital system in regional satellite mobile communication are illustrated. In the case of GEO area coverage satellite mobile communication systems The key technology - on-board processing was analyzed in detail and the antenna technology was briefly introduced.