面向微纳卫星应用的激光数传技术

System technology of data transmission with laser for micro-nano satellites

针对遥感微纳卫星对地高速数传需求,开展面向微纳卫星的激光数传技术研究,突破微纳卫星激光通信终端星地快速捕获建链和协同高精度稳定跟踪、天基终端轻小型化、复合光电组件等关键技术。完成微纳卫星的天基激光终端和地面激光终端研制,并开展星地传输试验验证,实现1230 km、10/50/100 Mbps的星地数据传输,验证了相关技术,为后续我国微纳卫星对地遥感应用提供了理想的星地数传手段。

For the high-speed data transmission requirements of remote sensing micro-nano satellites to the earth,the system technology of data transmission with laser for micro-nano satellites has been studied.The key technologies such as the high-precision cooperating PAT between micro-nano satellites and laser communication terminals,the light and small space-based terminals,composite photoelectric construction and so on,have been studied.The development of space-based laser communication terminal and ground laser communication terminal for the micro-nano satellite have been completed,and the demonstration experiment of laser communication between micro-nano satellite and ground laser communication terminal also has been completed.The 1230 km satellite ground data transmission with 10/50/100 Mbps satellite ground data transmission has been realized,and the relevant technologies have been verified,which provides an ideal satellite ground data transmission means for the follow-up micro nano satellite remote sensing to the earth in China.