Blar i Institutt for informasjonssikkerhet og kommunikasjonsteknologi på forfatter "Cheffena, Michael"

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    • Low complexity subspace approach for unbiased frequency estimation of a complex single-tone 

      Pourafzal, Alireza; Škrabánek, Pavel; Cheffena, Michael; Yildirim, Sule; Roi-Taravella, Thomas (Journal article, 2024)
      We propose a single-tone frequency estimator of a one-dimensional complex signal in complex white Gaussian noise. The estimator is based on the subspace approach and the unitary transformation. Due to its low space and ...

    • A Low-cost and Accurate Microwave Sensor System for Permittivity Characterization 

      Pourafzal, Alireza; Roi-Taravella, Thomas; Cheffena, Michael; Yildirim Yayilgan, Sule (Peer reviewed; Journal article, 2022)
      A novel low-cost microwave sensor system is proposed for accurate sensing of the real relative permittivity of materials under test (MUT). The proposed solution eliminates the need for using advanced measurement devices ...