Tag: Amplitude Modulation
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Diode & Filter Applications in Amplitude Modulation (AM) Detection Circuits
The operation of a typical AM audio frequency signal is illustrated in the Figure 1.0 where vin is the modulated signal that is shown Figure 1.1. A typical amplitude modulated signal that is fed into the detector circuit: The diode removes the lower envelope and the upper envelope is illustrated below: The capacitor C2 and…
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Modulation in Communication Systems
Introduction Modulation is the process of changing some characteristics (e.g. Amplitude, Frequency, or Phase) of a carrier wave in accordance with the intensity of the message signal. Modulation means to ‘’change’’. In Modulation, some characteristics of the carrier wave is changed in accordance with the intensity i.e. amplitude of the message signal. The resultant wave…