卫星光通信中接收天线的性能分析

为了获得高性能的接收天线以改善卫星光通信的系统性能,基于电磁波辐射理论,分析了接收光学天线的重要参数,研究了卫星光通信中使用单个光学天线及光学天线阵的性能.对单个光学天线的设计进行了优化,分析了单个光学天线及光学天线阵的相关参数之间的关系.通过仿真,不仅论证了星间激光通信需要极精确的指向角度,且可得出结论,在星间激光通信系统的光学终端中使用光学天线阵具有更大的优势.

Performance analys is on receiver antenna in sate llites opt ical communicat ion

The important parameters of the receiver antenna were analyzed to get higher performance optical antenna and improve the performance of satellites optical communication system. Based on electromagnetic wave radiation theory, the performance of one telescope and TA used in satellites optical communication was researched. One telescope design was optimized, and the relationship between the related parameters of optical antenna gain and TA analyzed. The simulations show that satellites optical communication needs very accurate point angle. The analyses results also show that TA is better than optical antenna in laser inter-satellites communication system.