Amplitude and Angle Modulation Systems

  • R. G. Meadows
Chapter

Abstract

In analogue modulation systems the information or baseband signal is transmitted by causing this signal to vary either the amplitude, frequency or phase of a higher frequency carrier. The most common form of carrier is a sinusoidal wave of the form :
$$v(t) = A(t)\;\cos [{\omega _c}t + \phi (t)]$$
and if the modulating signal varies linearly A(t) … then this leads to amplitude modulation ø(t) … then this leads to phase modulation \(\frac{{d\phi (t)}}{{dt}} \ldots \)

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Copyright information

© R. G. Meadows 1976

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  • R. G. Meadows

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