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Journal article

Perrine Lognoné, J. Conan, G. R. Othman, L. Paillier, N. Védrenne
2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW), 2023

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APA Click to copy
Lognoné, P., Conan, J., Othman, G. R., Paillier, L., & Védrenne, N. (2023). Multi-Aperture Ground Receiver to Enhance Adaptive Optics Corrected GEO-Feeder Uplinks. 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW).

Chicago/Turabian Click to copy
Lognoné, Perrine, J. Conan, G. R. Othman, L. Paillier, and N. Védrenne. “Multi-Aperture Ground Receiver to Enhance Adaptive Optics Corrected GEO-Feeder Uplinks.” 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW) (2023).

MLA Click to copy
Lognoné, Perrine, et al. “Multi-Aperture Ground Receiver to Enhance Adaptive Optics Corrected GEO-Feeder Uplinks.” 2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW), 2023.

BibTeX Click to copy

@article{perrine2023a,
  title = {Multi-Aperture Ground Receiver to Enhance Adaptive Optics Corrected GEO-Feeder Uplinks},
  year = {2023},
  journal = {2023 IEEE International Conference on Acoustics, Speech, and Signal Processing Workshops (ICASSPW)},
  author = {Lognoné, Perrine and Conan, J. and Othman, G. R. and Paillier, L. and Védrenne, N.}
}

Abstract

We are interested in this paper to GEO-Feeder optical uplink. We consider a two ground apertures system and propose a phase estimation method at the point-ahead angle for adaptive optics pre-compensated ground to GEO satellite links based on downlink phase and log-amplitude measurements on the two ground apertures. This approach greatly improves the pre-compensation phase, especially decreasing the tip and tilt error by ~60%. It also improves the uplink coupled flux and fading statistics, decreasing the mean fade time duration by at least a factor two. It shows to perform better than the one aperture phase estimation scheme, especially in very severe atmospheric turbulence conditions. This method allows to make the GEO-Feeder telecommunication uplink reliable while using less power at the emission and shorter interleavers compared with the classical pre-compensation case.