The authors describe a digital cellular system with linear modulation. They discuss two kinds of modulation schemes-QPSK (quadrative phase-shift keying) and pi /4 shift QPSK, and two kinds of detection schemes-coherent detection and limiter-discriminator detection. The features of these modulation/detection schemes are clarified. From the collective point of view, the pi /4 shift QPSK/limiter-discriminator detection is judged to be the most advantageous. Next, the authors show examples of the radio link design for a digital cellular system with linear modulation. The system could be constructed at a transmission power of 100-200 mW. Finally, the breadboard equipment configuration and the experimental results are shown.


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    Titel :

    Digital cellular system with linear modulation


    Weitere Titelangaben:

    Ein digitales zellulares Funksystem mit Linearmodulation


    Beteiligte:
    Ono, S. (Autor:in) / Kondoh, N. (Autor:in) / Shimazaki, Y. (Autor:in)


    Erscheinungsdatum :

    1989


    Format / Umfang :

    6 Seiten, 8 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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