Now showing items 1-5 of 5

    • Continuous and discrete fractional fourier domain decomposition 

      Yetik, İ. Şamil; Kutay, M. A.; Özaktaş, H.; Özaktaş, Haldun M. (IEEE, 2000)
      We introduce the fractional Fourier domain decomposition for continuous and discrete signals and systems. A procedure called pruning, analogous to truncation of the singular-value decomposition, underlies a number of ...
    • The fractional Fourier domain decomposition 

      Kutay, M. A.; Özaktaş, H.; Özaktaş, Haldun M.; Arıkan, Orhan (Elsevier, 1999)
      We introduce the fractional Fourier domain decomposition. A procedure called pruning, analogous to truncation of the singular-value decomposition, underlies a number of potential applications, among which we discuss fast ...
    • Resolution enhancement of low resolution wavefields with POCS algorithm 

      Çetin, A. Enis; Özaktaş, H.; Özaktaş, Haldun M. (The Institution of Engineering and Technology, 2003)
      The problem of enhancing the resolution of wavefield or beam profile measurements obtained using low resolution sensors is addressed by solving the problem of interpolating signals from partial fractional Fourier transform ...
    • Restoration of space-variant global blurs caused by severe camera movements and coordinate distortions 

      Özaktaş, H.; Pınar, M. Ç.; Akgül, M. (IOP Science, 1998)
      We show that a broad class of image recovery problems where an object undergoing an arbitrary two-dimensional, time- and space-variant, non-separable, nonlinear global coordinate distortion, is imaged for a certain duration, ...
    • Signal recovery from partial fractional fourier transform information 

      Çetin, A. Enis; Özaktaş, H.; Özaktaş, Haldun M. (IEEE, 2004)
      The fractional Fourier transform has found many applications in signal and image processing and optics. An iterative algorithm for signal recovery from partial fractional Fourier transform information is presented. The ...