Optimisation of the Pre-compensation Phase for GEO-feeder Optical Uplinks

被引：0

作者：

Lognone, Perrine ^{[1
,2
]}

Conan, Jean-Marc ^{[1
]}

Rekaya, Ghaya ^{[2
]}

Paillier, Laurie ^{[1
]}

Vedrenne, Nicolas ^{[1
]}

机构：

[1] Paris Saclay Univ, ONERA, DOTA, F-92322 Chatillon, France

[2] Telecom Paris, F-91120 Palaiseau, France

来源：

FREE-SPACE LASER COMMUNICATIONS XXXV | 2023年 / 12413卷

关键词：

Anisoplanatism; GEO-Feeder link; Adaptive Optics; Point ahead angle; Optical communications; ADAPTIVE OPTICS;

D O I：

10.1117/12.2648898

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose a new MMSE method relying on phase and log-amplitude on-axis measurements and statistical priors to estimate the pre-compensation phase at point-ahead angle of a ground to geostationnary satellite telecom link suffering from anisoplanatism. This method shows to reduce the tip and tilt residual phase variance down to 49% and therefore brings a gain on the link margin up to 15 dB. It also shows to improve the fade statistics, reducing the number and mean duration of fades.

引用

页数：12

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