Dr. P. Lognoné professional page - Two-aperture measurements for

Journal article

Perrine Lognoné, J. Conan, Ghaya Rekaya, L. Paillier, N. Védrenne
Optics Letters, 2023

Cite

APA Click to copy
Lognoné, P., Conan, J., Rekaya, G., Paillier, L., & Védrenne, N. (2023). Two-aperture measurements for GEO-feeder adaptive optics pre-compensation optimization. Optics Letters.

Chicago/Turabian Click to copy
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).

MLA Click to copy
Lognoné, Perrine, et al. “Two-Aperture Measurements for GEO-Feeder Adaptive Optics Pre-Compensation Optimization.” Optics Letters, 2023.

BibTeX Click to copy

@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.