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  • Sigma-Delta modulatorji za digitalne brezžične komunikacijske sisteme
    Prelog, Dušan, 1980- ; Stergar, Janez, 1968-
    The main requirements in the next generation of mobile devices are minimization of communication modules with increased integration and multi-standard capability (programmability of RF transceivers). ... Therefore channel selection should be moved in the digital domain where it is easier to implement programmable filters. This requires a wide band AID converter that can digitize both the desired channel and adjacent channel interferers. Oversampled Sigma-Delta modulators are uniquely suited to this application because the adjacent channel interferers fall into the same band as the high-pass shaped quantization noise. Both the quantization noise and interferers can be removed by the same digital decimation filter. ln the following RF receiver architectures for baseband processing will be introduced as well as the technology fundamentals of Sigma-Delta modulators and their implementation.
    Vir: Zbornik trinajste mednarodne elektrotehniške in računalniške konference ERK 2004, 27. - 29. september 2004, Portorož, Slovenija (Zv. A, Str. 103-106)
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 2004
    Jezik - slovenski
    COBISS.SI-ID - 9051414

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