| 摘要: |
| 作为天基测控系统，数据中继卫星大大提高了对用户星的覆盖率，减少了地面布站的数量，节约了成本，是各主要航天国家重点建设的航天系统之一。目前，美国、俄罗斯、欧洲和日本均发展了自己的数据中继卫星系统，在对空间和地面系统进行升级改造的同时，以小卫星星座、搭载载荷等灵活的形式，采用激光通信、软件无线电、组网等先进技术积极研发和部署下一带卫星系统，并谋划与行星中继卫星一起构建跨太阳系的中继卫星体系。总结了国外中继卫星系统的发展现状和未来，综合分析了关键技术和发展趋势，并对中国中继卫星的发展提出了建议。 |
| 关键词: 数据中继卫星系统 关键技术 发展趋势 激光通信 软件无线电 DTN组网 |
| DOI： |
|
| 基金项目: |
|
| Latest development progress and trends of foreign data relay satellite systems |
| YANG Hongjun |
| () |
| Abstract: |
| As a space-based TT&C system,data relay satellite system can improve user coverage with reduced ground station number and operation cost,so it has being developed greatly in many major space powers,including U.S.,Russia,Europe,and Japan. In recent years,these satellites’ space and ground segments are upgraded and replaced,and the next generation satellite solution has being proposed and implemented using advanced technologies such as laser communication,software defined radio,and networking,and flexible architecture such as small satellite constellation or hosted payload. A data relay satellite system across solar system incorporated relay satellites on planets is planned. For these data relay satellite systems,the current situation and development are discussed,and the key technologies and future trends are analyzed. Some advices on China's data relay satellite system development are provided. |
| Key words: data relay satellite system key technologies future trends laser communication software defined radio DTN networking |
《电讯技术》编辑部 