Visualitzant Articles publicats en revistes per autor/a "Bergadà Caramés, Pau"

Ara mostrant els elements 1-6 de 6

    • A comprehensive sounding of the ionospheric HF radio link from Antarctica to Spain 

      Ads, Ahmed Gamal; Bergadà Caramés, Pau; Vilella Parra, Carles; Regué, Joan Ramon; Pijoan Vidal, Joan Lluís; Bardají Benach, Raúl; Mauricio Ferré, Juan (Radio Science, 2013. Vol.48, 1, Gener - Febrer, 2013-01)
      Since 2003, our group has been investigating the performance of different transmission techniques for low-power low-interference High Frequency (HF) ionospheric communication systems. Specifically, we ...

    • An Approach to Frequency Selectivity in an Urban Environment by Means of Multi-Path Acoustic Channel Analysis 

      Bergadà Caramés, Pau; Alsina Pagès, Rosa Maria (Sensors. 2019. Vol. 19, No. 12, 2019-06)
      The improvement of quality of life in the framework of the smart city paradigm cannot be limited to a set of objective measures carried out over several critical parameters (e.g., noise or air pollution). ...

    • Digital Transmission Techniques for a Long Haul HF Link: DS-SS vs. OFDM 

      Bergadà Caramés, Pau; Alsina Pagès, Rosa Maria; Pijoan Vidal, Joan Lluís; Salvador Marín, Martí; Regué, Joan Ramon; Badia Folguera, David; Graells Castellà, Simó (Radio Science. 2014, Vol.49, No.7 (Juliol), 2014-06)
      This paper presents two digital transmission techniques for long haul ionospheric links. Since2003 we have studied the HF link between the Antarctic Spanish Base, Juan Carlos I, and Spain; and wehave ...

    • Ionospheric Narrowband and Wideband HF Soundings for Communications Purposes: A Review 

      Hervás García, Marcos; Bergadà Caramés, Pau; Alsina Pagès, Rosa Maria (Sensors, 2020, Vol. 20 No 9, 2020-04)
      High Frequency (HF) communications through ionospheric reflection is a widely usedtechnique specifically for maritime, aeronautical, and emergency services communication withremote areas due ...

    • Polarization diversity in a long-haul transequatorial HF link from Antarctica to Spain 

      Bergadà Caramés, Pau; Alsina Pagès, Rosa Maria; Hervás García, Marcos (Radio Science. 2017. Vol.52 Nº.1 (Gener), 2017-01)
      This paper describes a set of experiments which examine the feasibility of applying polarization diversity to a 12,760 km ionospheric link from Livingston Island (62.6°S, 60.4°W), South Shetlands, to ...

    • Vertical and Oblique ionospheric soundings over the long haul HF link between Antarctica and Spain 

      Ads, Ahmed Gamal; Bergadà Caramés, Pau; Regué, Joan Ramon; Alsina Pagès, Rosa Maria; Pijoan Vidal, Joan Lluís; Altadill Felip, David; Badia Folguera, David; Graells Castellà, Simó (Radio Science. 2015, Vol. 50, No.9 (Setembre), 2015-09)
      This paper presents a comparative study between the oblique sounding results, theInternational Telecommunication Union Rec533 HF prediction model, and the vertical sounding results of atransequatorial ...