Browsing by Keywords "Signals"

Now showing items 1-5 of 5

    • 3-Boyutlu orman yangını yayılımı sistemi 

      Köse, Kıvanç; Yılmaz, E.; Grammalidis, N.; Aktuğ, B.; Çetin, A. Enis; Aydın, İ. (IEEE, 2008)
      In the last few years, due to the global warming and draught related to it, there is an increase in the number of forest fires. Forest fire detection is mainly done by people but there exists some automated systems in this ...

    • Accurate positioning in ultra-wideband systems 

      Soganci, H.; Gezici, Sinan (Institute of Electrical and Electronics Engineers, 2011)
      Accurate positioning systems can be realized via ultra-wideband signals due to their high time resolution. In this article, position estimation is studied for UWB systems. After a brief introduction to UWB signals and their ...

    • Cross-term-free time-frequency distribution reconstruction via lifted projections 

      Deprem, Z.; Çetin, A. Enis (Institute of Electrical and Electronics Engineers, 2015-01)
      A crucial aspect of time-frequency (TF) analysis is the identification of separate components in a multicomponent signal. The Wigner-Ville distribution is the classical tool for representing such signals, but it suffers ...

    • Influence of missing array elements on phase aberration correction for medical ultrasound 

      Karaman, M.; Köymen, Hayrettin; Atalar, Abdullah; O'Donnell, M. (IEEE, 1994)
      The influence of missing array elements on aberration correction based on time delay estimation using radio frequency signals of neighboring elements is experimentally investigated. Normalized cross correlation and sum of ...

    • Time-varying lifting structures for single-tree complexwavelet transform 

      Keskin, Furkan; Çetin, A. Enis (IEEE, 2012)
      In this paper, we describe a single-tree complex wavelet transform method using time-varying lifting structures. In the dualtree complex wavelet transform (DT-CWT), two different filterbanks are executed in parallel to ...