In traffic telematic systems (route guidance, fleet Management) vehicle-side terminals are required for the quasi-simultaneous reception of cellular phone (GSM) and satellite navigation (GPS). A conventional approach uses two complete receivers for these two tasks. The authors describe a cost-saving solution for a combined receiver which relies on the TDM structure of the GSM signal. This concept has the potential for a reduction in volume, power consumption and cost compared with the conventional solution. A bandpass SigmaDelta-ADC for digitizing an intermediate frequency of 44 MHz has been realized and tested. The matching of the different stages of the cascaded SigmaDelta modulator will be improved by a redesign. A digital front-end has been realized to adapt the SigmaDelta-modulator output to comrnercially available chip sets for basebandprocessing.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A GSM/GPS receiver with a bandpass sigma-delta analog for digital converter


    Weitere Titelangaben:

    Ein GSM/GSP-Empfänger mit einem AD-Umsetzer mit Sigma-Delta-Modulation


    Beteiligte:
    Müller, T. (Autor:in) / Boehm, K. (Autor:in) / Hentschel, T. (Autor:in)


    Erscheinungsdatum :

    1999


    Format / Umfang :

    4 Seiten, 7 Bilder, 2 Tabellen, 9 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    SIGMA-DELTA ANALOGUE TO DIGITAL CONVERTER

    BRULE SIMON / CASSAGNES THIERRY DOMINIQUE YVES / SANDREZ PASCAL et al. | Europäisches Patentamt | 2021

    Freier Zugriff

    Improved sigma-delta analog-to-digital converter using time-stretching technique [3795-03]

    Coppinger, F. / Magoon, V. / Bhushan, A. S. et al. | British Library Conference Proceedings | 1999



    Hybrid Analog/Digital Receiver

    Brown, D. H. / Hurd, W. J. | NTRS | 1989