【作者】 尚湘安； 萧鑫； 戚楠； 杨二雷； 李胜先；

【Author】 SHANG Xiang’an;XIAO Xin;QI Nan;YANG Erlei;LI Shengxian;China Academy of Space Technology;

【机构】 中国空间技术研究院西安分院；

【摘要】 近年来,各国政府将通信卫星系统作为一类战略性、牵引性的信息基础设施,加大投入推动本国相应系统与服务的发展,商业资本也紧紧把握不断增长的信息传输与分发市场需求,极大推动了卫星通信产业的规模化发展和向大众消费市场深度普及。经过几十年的发展,通信卫星有效载荷的服务能力得到质的改善,无论是可用频谱带宽、数据吞吐速率都有了明显的增长。与此同时,通信技术、数字技术和网络技术大力发展为通信卫星有效载荷研制提供了新的概念、丰富的技术手段和设计方法,进一步提高了性能指标。本文结合通信卫星载荷技术的发展状况,归纳了灵活载荷技术的特点,并对相关的跳波束技术、转发器射频通道宽带化设计技术和数字透明处理技术3项关键技术的发展状况进行了研究。希望通过研究,启发思路,促进通信卫星有效载荷研究技术发展。更多还原

【Abstract】 In recent years, governments identified communications satellite system as a kind of strategic,traction information infrastructure, increasing investment to promote the development of the domestic system and the corresponding services. Commercial capitals also grasp the information transmission and distribution in the growing market demand, greatly promote the large scale development of satellite communications industry and to the depth of the mass consumer market popularity. After decades of development, the service capacity of communications satellite payloads has been improved qualitatively; both the available spectrum bandwidth and the data throughput rate have increased significantly. At the same time, the vigorous development of communication technology, digital technology and network technology provides new concepts, rich technical means and design methods for the research and development of communications satellite payload, which further improves the performance index. In this paper, the characteristics of flexible payload technology are summarized based on the development of communications satellite payload technology, and the development of three key technologies, such as hopping beam technology, wideband design technology of RF channel and digital transparent processing technology, are studied. It is hoped that the research will inspire ideas and promote the development of communications satellite payload research technology.更多还原