Now showing items 1-14 of 14

    • All-fiber all-normal dispersion laser with a fiber-based Lyot filter 

      Özgören, K.; Ilday, F. Ö. (Optical Society of America, 2010-04-15)
      We propose the use of a short section of polarization-maintaining fiber as a birefringent medium to construct an all-fiber Lyot filter inside the cavity of a fiber laser. This allows mode-locked operation of an all-fiber ...
    • Boosted LMS-Based Piecewise Linear Adaptive Filters 

      Kari, D.; Marivani, I.; Delibalta, I.; Kozat, S.S. (European Signal Processing Conference, EUSIPCO, 2016)
      We introduce the boosting notion extensively used in different machine learning applications to adaptive signal processing literature and implement several different adaptive filtering algorithms. In this framework, we ...
    • Effects of linear filter on stability and performance of human-in-the-loop model reference adaptive control architectures 

      Yousefi, E.; Demir, D. F.; Sipahi, R.; Yucelen, T.; Yildiz, Y. (American Society of Mechanical Engineers, 2017)
      Model reference adaptive control (MRAC) can effectively handle various challenges of the real world control problems including exogenous disturbances, system uncertainties, and degraded modes of operations. In human-in-the-loop ...
    • Filterless all-normal dispersion fiber laser 

      Özgören, Kıvanç; İlday, F. Ömer (IEEE, 2009)
      We demonstrate mode-locked operation of an allnormal dispersion Yb-fiber oscillator without the use of bulk bandpass filter. A section of PM-fiber incorporated into the cavity acts as a filter, paving the way towards an ...
    • Grating based plasmonic band gap cavities 

      Senlik, S.S.; Kocabas, A.; Aydinli, A. (Optical Society of American (OSA), 2009)
      We report on a comparative study of grating based plasmonic band gap cavities. Numerically, we calculate the quality factors of the cavities based on three types of grating surfaces; uniform, biharmonic and Moiré surfaces. ...
    • Miniaturization and characterization of metamaterial resonant particles 

      Aznar F.; Bonache J.; Martín F.; Özbay, Ekmel; Alici, K. B.; Bilotti, F.; Tricarico, S.; Vegni, L.; Baena J.D.; Jelinek L.; Marqués, R. (2008)
      This paper is focussed on the miniaturization and characterization of semi-lumped resonators, of interest for the synthesis of metamaterial-based structures such as metamaterial transmission lines, frequency selective ...
    • Novel microstrip fed mechanically tunable combline cavity filter 

      Kurudere, S.; Erturk, V. B. (IEEE, 2013)
      A novel configuration for mechanically tunable combline bandpass filters is proposed, where the classical resonating rod-tuning screw combination is replaced with a simple printed circuit-tuning screw combination. Moreover, ...
    • Novel SIW based interdigital bandpass filter with harmonic suppression 

      Kurudere, S.; Ertürk, Vakur B. (IEEE, 2014)
      A novel configuration for substrate integrated waveguide (SIW) based bandpass filter with interdigital type resonators is presented. In the proposed structure, interdigital type resonators consisting of vias and circular ...
    • Single and cascaded, magnetically controllable metasurfaces as terahertz filters 

      Serebryannikov, A. E.; Lakhtakia, A.; Özbay, Ekmel (Optical Society of America OSA, 2016)
      Transmission of a normally incident, linearly polarized, plane wave through either a single electrically thin metasurface comprising H-shaped subwavelength resonating elements made of magnetostatically controllable InAs ...
    • SIW‐based interdigital bandpass filter with harmonic suppression 

      Kurudere, S.; Ertürk, V. B. (John Wiley and Sons Inc., 2015)
      A novel configuration of interdigital bandpass filter based on the substrate integrated waveguide (SIW) technology is proposed. In addition to the interdigital resonators in SIW that determine the main response/characteristics ...
    • Source and filter estimation for Throat-Microphone speech enhancement 

      Turan, M. A. T.; Erzin, E. (Institute of Electrical and Electronics Engineers Inc., 2016)
      In this paper, we propose a new statistical enhancement system for throat microphone recordings through source and filter separation. Throat microphones (TM) are skin-attached piezoelectric sensors that can capture speech ...
    • Spatial filters based on EBG structures with anisotropic-like dispersion 

      Serebryannikov, A.E.; Cakmak, A.O.; Çolak, Evrim; Özbay, Ekmel (IEEE, 2010)
      Bandpass and bandstop spatial filters based on the dielectric-rod EBG structures are proposed and validated for the frequency range from 18 to 25 GHz. The obtained experimental results are well consistent with the theoretical ...
    • Sub-band equalization filter design for improving dynamic range performance of modulated wideband converter 

      Alp, Y. K.; Gök, Gökhan; Korucu, A. B. (IEEE, 2017)
      In this work, we propose an iterative method to improve the dynamic range performance of the Modulated Wideband Converter (MWC), which is multi-channel sampling system for digitizing wideband sparse signals below the Nyquist ...
    • Terahertz Bandpass Frequency Selective Surfaces on Glass Substrates Using a Wet Micromachining Process 

      Ramzan M.; Khan T.M.; Bolat S.; Nebioglu M.A.; Altan H.; Okyay A.K.; Topalli K. (Springer New York LLC, 2017)
      This paper presents terahertz (THz) frequency selective surfaces (FSS) implemented on glass substrate using standard microfabrication techniques. These FSS structures are designed for frequencies around 0.8 THz. A fabrication ...