Optimisation of the pre-compensation phase for GEO-feeder optical uplinks

Perrine Lognoné; Jean-Marc Conan; Ghaya Rekaya; Laurie Paillier; Nicolas Védrenne

doi:10.1117/12.2648898

15 March 2023 Optimisation of the pre-compensation phase for GEO-feeder optical uplinks

Perrine Lognoné, Jean-Marc Conan, Ghaya Rekaya, Laurie Paillier, Nicolas Védrenne

Proceedings Volume 12413, Free-Space Laser Communications XXXV; 1241314 (2023) https://doi.org/10.1117/12.2648898
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

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.

Conference Presentation

Citation Download Citation

Perrine Lognoné, Jean-Marc Conan, Ghaya Rekaya, Laurie Paillier, and Nicolas Védrenne "Optimisation of the pre-compensation phase for GEO-feeder optical uplinks", Proc. SPIE 12413, Free-Space Laser Communications XXXV, 1241314 (15 March 2023); https://doi.org/10.1117/12.2648898

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