Güncel Gönderiler

  • DAG telescope site studies and infrastructure for possible international co-operations 

    Keskin, Onur; Yeşilyaprak, Cahit; Yerli, Sinan Kaan; Aliş, Sinan (Spie-Int Soc Optical Engineering, 2016)
    The selected site for the 4 m DAG (Eastern Anatolian Observatory in Turkish) telescope is at "Karakaya Ridge", at 3170 m altitude (3150 m after summit management). The telescope's optical design is performed by the DAG ...
  • Status of the Focal Plane Instrumentation (FPI) Project of the 4 m DAG Telescope 

    Keskin, Onur; Yerli, Sinan Kaan; Yeşilyaprak, Cahit; Güver, Tolga; Alis, Sinan; Yelkenci, Filiz Korhan; Güçsav, Bülent Bülent; Arabacı, Mehtap O.; Erol, Ayşe (Spie-Int Soc Optical Engineering, 2016)
    DAG (Eastern Anatolia Observatory in Turkish) will be the newest and largest (4m) observatory of Turkey in both optical (VIS) and near-infrared (NIR) Owith its robust observing site infrastructure. The telescope is designedOto ...
  • Agile development approach for the observatory control software of the DAG 4m telescope 

    Keskin, Onur; Güçsav, Bülent; Çoker, Deniz; Yeşilyaprak, Cahit; Zago, Lorenzo; Yerli, Sinan Kaan (SPIE-Int Soc Optical Engineering, 2016)
    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 ...
  • The DAG Project, a 4m class telescope: The telescope main structure Performance 

    Keskin, Onur; Marchiori, Gianpietro; Busatta, Andrea; Ghedin, L.; Marcuzzi, Enrico; Manfrin, Cristiana; Battistel, C.; Pirnay, Olivier; Flebus, Carlo; Yeşilyaprak, Cahit; Yerli, Sinan Kaan (SPIE, 2016)
    Dogu Anatolu Gözlemevi (DAG-Eastern Anatolia Observatory) Project is a 4m class optical, near-infrared Telescope and suitable enclosure which will be located at an altitude of 3.170m in Erzurum, Turkey. The DAG telescope ...
  • A microwave kinetic inductance detector for the DAG telescope 

    Keskin, Onur; Güver, Tolga; Mazin, Benjamin A.; O'Brien, Kieran S.; Kay, Burak; Aliş, Sinan; Yelkenci, F. Korhan; Yeşilyaprak, Cahit; Yerli, Sinan Kaan; Erol, Ayşe (SPIE, 2016)
    We present the details of a proposed microwave kinetic inductance detector (MKID) for the DAG (Eastern Anatolia Observatory in Turkish) telescope, DAG-MKID. The observatory will have a modern 4m size telescope that is ...
  • The design of an adaptive optics telescope: The case of DAG 

    Keskin, Onur; Jolissaint, Laurent; Zago, Lorenzo; Yerli, Sinan Kaan; Yeşilyaprak, Cahit; Mudry, Emeric; Lousberg, Grégory P. (SPIE, 2016)
    In this paper, we describe in detail the optical design of DAG, a new 4 m telescope for Turkey. DAG is an "adaptive optics friendly" telescope, in a sense that each design decision is taken considering the potential impact ...
  • Project management of DAG: Eastern Anatolia Observatory 

    Keskin, Onur; Yeşilyaprak, Cahit; Yerli, Sinan Kaan; Zago, Lorenzo; Güver, Tolga; Aliş, Sinan (SPIE, 2016)
    The four meter DAG (Eastern Anatolia Observatory in Turkish) telescope is not only the largest telescope in Turkey but also the most promising telescope in the northern hemisphere with a large potential to offer scientific ...
  • Observatory building design: A case study of DAG with infrastructure and facilities 

    Keskin, Onur; Sahmalı, Ali Erkan; Yeşilyaprak, Cahit; Yerli, Sinan Kaan (SPIE, 2016)
    Eastern Anatolian Observatory (DAG), will be built in one of the well-known mountain ridges of Erzurum, Turkey, at latitude of 39°46'50, longitude of 41°13'35 and an altitude of 3.151 meters. As well as erecting the largest ...
  • Auxiliary free space optical communication project to ensure continuous transfer of data for DAG the 4m telescope 

    Keskin, Onur; Yeşilyaprak, Cahit; Yerli, Sinan Kaan (SPIE, 2016)
    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 the fiber ...
  • Integrated opto-dynamic modeling of the 4m DAG telescope image quality performance 

    Keskin, Onur; Zago, Lorenzo; Guex, Benjamin; Yeşilyaprak, Cahit; Yerli, Sinan Kaan (SPIE, 2016)
    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 ...
  • DAG: A new observatory and a prospective observing site for other potential telescopes 

    Keskin, Onur; Yeşilyaprak, Cahit; Yerli, Sinan Kaan; Güçsav, Bülent (SPIE, 2016)
    DAG (Eastern Anatolia Observatory is read as "Dogu Anadolu Gözlemevi" in Turkish) is the newest and largest observatory of Turkey, constructed at an altitude of 3150 m in Konakll/Erzurum provenience, with an optical and ...
  • Self optimizing ABS control algorithm with application 

    Dinçmen, Erkin; Altınel, Tunç (Institute of Electrical and Electronics Engineers Inc., 2015-07-07)
    A self optimizing control algorithm is applied to the ABS control problem where the algorithm accomplishes to maximize friction potential of the tires during braking in unknown road conditions. Simulation studies are ...
  • Joint decode/compress and forward based cooperative multiple access 

    Kaya, Onur Kağan; Güneş, Mehmet (IEEE, 2012-04-18)
    In this paper, we develop encoding and decoding strategies for a two user cooperative multiple access channel, based on the joint use of decode-forward and compress-forward techniques. We derive the resulting achievable ...
  • Automatic modulation classification for mimo systems using fourth-order cumulants 

    Öner, Mustafa Mengüç; Mühlhaus, Michael S.; Dobre, Octavia Adina; Jkel, Holger U.; Jondral, Friedrich K. (IEEE, 2012-09-03)
    Automatic classification of the modulation type of an unknown communication signal is a challenging task, with applications in both commercial and military contexts, such as spectrum surveillance, cognitive radio, and ...
  • Adaptive extremum seeking scheme for ABS control 

    Dinçmen, Erkin (IEEE, 2014)
    A sliding mode based extremum seeking algorithm is applied to the ABS control problem where the optimum slip ratio is searched online for maximum braking force in unknown road conditions. By making the parameter of the ...
  • Turkey's next big science project: DAG the 4 meter telescope 

    Keskin, Onur; Yeşilyaprak, Cahit; Yerli, Sinan Kaan; Zago, Lorenzo; Jolissaint, Laurent (SPIE-INT SOC OPTICAL ENGINEERING, 2014)
    The DAG (Turkish for Eastern Anatolia Observatory) 4-m telescope project has been formally launched in 2012, being fully funded by the Government of Turkey. This new observatory is to be located on a 3170 m altitude ridge ...

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