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Mobile Netze: Modulation und Kanalkodierung

Mobile Netzwerke - Hauptseminar im SS 99 - Dept. Distributed Systems - University of Ulm - Germany. Slide 2. Inhalt. GrundlagenSignaleNachrichten

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Mobile Netze: Modulation und Kanalkodierung

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    1. Mobile Netzwerke - Hauptseminar im SS 99 - Dept. Distributed Systems - University of Ulm - Germany Slide 1 Mobile Netze: Modulation und Kanalkodierung Seminarvortrag von Hans-Christian Jaud jaud@email.com

    2. Mobile Netzwerke - Hauptseminar im SS 99 - Dept. Distributed Systems - University of Ulm - Germany Slide 2 Inhalt Grundlagen Signale Nachrichtenübertragung Modulation: ASK, PSK, FSK Modulation in der Praxis BPSK, QPSK MSK, GMSK QAM Spread Spectrum (DSSS, FHSS) OFDM, COFDM

    3. Mobile Netzwerke - Hauptseminar im SS 99 - Dept. Distributed Systems - University of Ulm - Germany Slide 3 Signale Signal = Physikalische Darstellung von Daten Einteilung in Analog- und Digitalsignale Analogsignal = zeit- und wertkontinuierlich Digitalsignal = zeit- und wertdiskret Jedes Signal besteht aus Sinusschwingungen unterschiedlicher Amplitude, Frequenz und Phase s(t) =

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