• Astronomical component estimation (ACE v.1) by time-variant sinusoidal modeling 

      Sinnesael, Matthias; Zivanovic, Miroslav Upna; Vleeschouwer, David De; Claeys, Philippe; Schoukens, Johan (Copernicus Publications, 2016)   Artículo / Artikulua  OpenAccess
      Accurately deciphering periodic variations in paleoclimate proxy signals is essential for cyclostratigraphy. Classical spectral analysis often relies on methods based on (fast) Fourier transformation. This technique has ...
    • Non-negative matrix decomposition for single-channel source separation in biomedical signal processing applications 

      Niegowski, Maciej Upna (2017)   Tesis doctoral / Doktoretza tesia  OpenAccess
      La separación de fuentes en el procesamiento de señales digitales, consiste en encontrar las mejores aproximaciones de las componentes de una mezcla de señales. Aunque en la mayoría de los casos no se dispone de antemano ...
    • Two methods for nonparametric spectrum peak discrimination 

      Zivanovic, Miroslav Upna; Carlosena García, Alfonso Upna (2002)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The conventional DFT-oriented nonparametric interpolation methods, based on time windowing and the DTFT envelope curve resampling (zero padding, Chirp-z [1], frequency scale distortion [2], etc.), can improve the spectrum ...
    • Unified analysis of glottal source spectrum 

      Arroabarren Alemán, Ixone Upna; Zivanovic, Miroslav Upna; Carlosena García, Alfonso Upna (ISCA, 2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The spectral study of the glottal excitation has traditionally been based on a single time-domain mathematical model of the signal, and the spectral dependence on its time domain parameters. Opposite to this approach, ...