Atatürk Üniversitesi Atatürk Üniversitesi
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Bildiri Tam Metin Bildiri Uluslararası 2019

Wind disturbance cancellation for smaller alt-azimuth telescopes

Ali Cem Unal, Gokhan Kararsız, Cemal Tugrul Yilmaz, Onur Keskin, Cahit Yeşilyaprak

6th Workshop on Robotic Autonomous Observatories, RMxAC 2021 ss. 29–34 · Mazagon, Huelva · 30.09.2019–04.10.2019 · 30.09.2019
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Özet

© 2021: Instituto de Astronomía, Universidad Nacional Autónoma de México.This study focuses on eliminating unknown amplitude wind disturbance for 2-DOF alt-azimuth configuration small telescopes. An adaptive controller is designed to overcome wind disturbance as a set and forget system. The mathematical model is derived based on 2-DOF alt-azimuth configuration. The wind disturbance is modeled as a sum of sinusoidal with unknown amplitude, frequency and phase by using Wind-Gust model. The controller aims to cancel the effect of the disturbance on the altitude and azimuth angles of the telescope while positioning or staying static on a dedicated configuration. The asymptotic stability is proven with the Lyapunov approach. The numerical study is illustrated to success of the proposed controller.

Anahtar kelimeler

Atmospheric effects Instrumentation: Adaptive optics

Atıf için künye

Unal, A. C., Kararsız, G., Yilmaz, C. T., Keskin, O., & Yeşilyaprak, C. (2019). Wind disturbance cancellation for smaller alt-azimuth telescopes. 6th Workshop on Robotic Autonomous Observatories, RMxAC 2021, Mazagon, Huelva (ss. 29–34). https://doi.org/10.22201/ia.14052059p.2021.53.07

BibTeX
@inproceedings{unal2019-61827,
  author = {Unal, Ali Cem and Kararsız, Gokhan and Yilmaz, Cemal Tugrul and Keskin, Onur and Yeşilyaprak, Cahit},
  title = {Wind disturbance cancellation for smaller alt-azimuth telescopes},
  booktitle = {6th Workshop on Robotic Autonomous Observatories, RMxAC 2021},
  address = {Mazagon, Huelva},
  year = {2019},
  pages = {29--34},
  doi = {10.22201/ia.14052059p.2021.53.07},
  url = {https://akademik.atauni.edu.tr/yayinlar/61827-wind-disturbance-cancellation-for-smaller-alt-azimuth-telescopes}
}