Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Open Access Guideline
Open Access Guideline
Postgraduate Thesis Guideline
Postgraduate Thesis Guideline
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Integrated opto-dynamic modeling of the 4-m DAG telescope image quality performance
Download
index.pdf
Date
2016-06-28
Author
Zago, Lorenzo
Guex, Benjamin
YEŞİLYAPRAK, Cahit
Yerli, Sinan Kaan
KESKİN, ONUR
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
153
views
0
downloads
Cite This
The Turkish DAG 4-m telescope is currently through the final design stage. It is to be located on a 3170 m mountain top in Eastern Anatolia. The telescope will be a state-of-the art device, alt-az mount with active primary and adjustable secondary and tertiary mirrors. Its optics design is specially aimed at being compatible with advance adaptive optics instrumentation. The ultimate performance of such a telescope results of multiple concurrent effects from many different components and active functions of the complex system. The paper presents a comprehensive integrated (end-to-end) model of the telescope, comprising in one computational sequence all structural, electrodynamics and oactive optics performance that produce the image quality at the focal plane. The model is entirely programmed in Matlab/Simulink and comprises a finite element model of structure and mirrors, dynamics modal reduction, deformation analyses of structural and optical elements, active optics feedback control in the Zernike modal space.
Subject Keywords
End-to-end modeling
,
İntegrated modeling
URI
https://hdl.handle.net/11511/33230
DOI
https://doi.org/10.1117/12.2232816
Collections
Department of Physics, Conference / Seminar
Suggestions
OpenMETU
Core
Agile development approach for the observatory control software of the DAG 4m telescope
Gucsavd, B. Bulent; Coker, Deniz; YEŞİLYAPRAK, Cahit; KESKİN, ONUR; Zago, Lorenzo; Yerli, Sinan Kaan (2016-06-30)
Observatory Control Software for the upcoming 4m infrared telescope of DAG (Eastern Anatolian Observatory in Turkish) is in the beginning of its lifecycle. After the process of elicitation-validation of the initial requirements, we have been focused on preparation of a rapid conceptual design not only to see the big picture of the system but also to clarify the further development methodology. The existing preliminary designs for both software (including TCS and active optics control system) and hardware sh...
Preliminary results of the alignment and Hartmann tests of the AZT-22 telescope
Aslan, Z; Bikmaev, IF; Vitrichenko, EA; Gumerov, RI; Dembo, LA; Kamus, SF; Keskin, V; Kiziloglu, U; Pavlinsky, MN; Panteleev, LN; Sakhibullin, NA; Selam, SO; Sunyaev, RA; Khamitov, I; Yaskovich, AL (2001-06-01)
The AZT-22 telescope installed in Turkey (Antalia) was aligned and tested on stars by the Hartmann method. The rms normal deviation of an equivalent optical system is 0.040 +/- 0.016 mum. The circle of confusion is 0.40 +/- 0.04 arcsec in diameter at a 50% energy level. (C) 2001 MAIK "Nauka/Interperiodica".
A Comparative Study on Structural Wall Design Approach of 2007 Turkish Seismic Code
Kurç, Özgür; Lulec, Andac; Ozcebe, Guney (2011-07-01)
The new version of the Turkish Seismic Code was released in 2007 and the capacity design approach for high ductility structural walls was introduced for the first time. The practicing engineers, however, mentioned various problems especially related with the shear design of structural walls. Because of this reason, an in-depth comparative study was conducted to examine the differences and similarities of the design approaches of Turkish Seismic Code, American Reinforced Concrete Code and various studies in ...
Geometric Camera Calibration of BiLSAT Small Satellite Preliminary Results
Friedrich, Jurgen; Leloğlu, Uğur Murat; Tunalı, Erol (null; 2006-02-14)
The interior geometric calibration of the multi-spectral camera of BiLSAT satellite is aimed using three sets of images from Ankara. Each set contains four different images for channels Red, Green, Blue (RGB), and Near Infra Red (NIR) in which well-defined target points were identified and their image coordinates measured. The target points’ UTM coordinates were extracted from aerial photos or topographic maps and collected from field using hand-held GPS receiver. A least square parameter estimation was the...
Auxiliary free space optical communication project to ensure continuous transfer of data for DAG the 4m telescope
KESKİN, ONUR; YEŞİLYAPRAK, Cahit; Yerli, Sinan Kaan (2016-07-01)
The continuity of the amount of data that the 4m DAG (Eastern Anatolia Observatory in Turkish) telescope will produce and transfer to Ataturk University is critical not to jeopardize the science programs. Though t he fiber optics and radio link infrastructures are in place, these systems are still volatile against earthquakes, and possible excavation damages. Thus the 4m DAG telescope will be equipped with a free space optical communication system to ensure the continuity of the data transfer as a backup sy...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
L. Zago, B. Guex, C. YEŞİLYAPRAK, S. K. Yerli, and O. KESKİN, “Integrated opto-dynamic modeling of the 4-m DAG telescope image quality performance,” 2016, vol. 9911, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33230.