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两个孔径测量GEO-feeder自适应光学预补偿优化预补偿
Optics letters
|September 1, 2023
概括
我们开发了一种新方法,使用两个地面站来估计地球静止轨道 (GEO) 卫星的光学链接相位. 这通过减少大气扭曲来提高电信性能,特别是在恶劣的条件下.
科学领域:
- 光学通信是一种光学通信.
- 大气物理大气物理学
- 太空工程 太空工程
背景情况:
- 从地面到地球静止轨道 (GEO) 的光学链接对于卫星通信至关重要.
- 由大气动荡引起的前沿异行星主义,降低了电信性能.
- 目前的方法在恶劣的大气条件下扎.
研究的目的:
- 提出一种新的方法来估计地面到GEO光学链路的预补偿阶段.
- 为了减轻对GEO-feeder链路性能的影响.
- 改进卫星通信的合流量统计.
主要方法:
- 使用两个地面孔的下行链路相位和日志振幅测量.
- 估计预补偿阶段以抵消大气影响.
- 将性能与单孔估计方法进行比较.
主要成果:
- 减少了50%的异平平相变异.
- 在恶劣的大气条件下,在单孔方法中表现出优越的性能.
- 表明低分辨率的振幅测量足以用于第二个光圈.
结论:
- 拟议的双孔方法有效地减少了地面到GEO光学链路中的异平面主义.
- 这种技术提高了卫星电信性能和合流量.
- 该方法非常稳固,特别是在具有挑战性的大气流下.
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