Journal article
Perrine Lognoné, J. Conan, Ghaya Rekaya, L. Paillier, N. Védrenne
Optics Letters, 2023
Optics Letters, 2023
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APA
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Lognoné, P., Conan, J., Rekaya, G., Paillier, L., & Védrenne, N. (2023). Two-aperture measurements for GEO-feeder adaptive optics pre-compensation optimization. Optics Letters.
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Lognoné, Perrine, J. Conan, Ghaya Rekaya, L. Paillier, and N. Védrenne. “Two-Aperture Measurements for GEO-Feeder Adaptive Optics Pre-Compensation Optimization.” Optics Letters (2023).
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Lognoné, Perrine, et al. “Two-Aperture Measurements for GEO-Feeder Adaptive Optics Pre-Compensation Optimization.” Optics Letters, 2023.
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@article{perrine2023a,
title = {Two-aperture measurements for GEO-feeder adaptive optics pre-compensation optimization.},
year = {2023},
journal = {Optics Letters},
author = {Lognoné, Perrine and Conan, J. and Rekaya, Ghaya and Paillier, L. and Védrenne, N.}
}
Abstract
We present a method to estimate the pre-compensation phase of ground-to-geostationary orbit (GEO) optical links based on downlink phase and log-amplitude measurements from two ground apertures. This method allows us to reduce the point-ahead anisoplanatism that currently limits the telecom performance of GEO-feeder links. It is shown to reduce the anisoplanatic phase variance by 50%, hence improving the statistics of the coupled flux aboard the satellite. It also outperforms the one-aperture estimation method for very severe atmospheric conditions. Besides, only low-resolution amplitude measurements are required on the second aperture to reach the performance of the novel estimator.