Modulated Terms of Signal

Signal can be modulated in terms of: (a)       Amplitude Modulation (AM).       When the amplitude of high frequency carrier wave is changed in accordance with the intensity of signal, it is called amplitude modulation. In amplitude modulation only the amplitude of the carrier wave is changed in accordance with intensity of signal However, the frequency of modulated wave is remains the same. i.e carrier frequency. Fig shows the principle of amplitude modulation. Fig. ‘b’ shows the audio electrical signal whereas fig ‘a’ shows carrier wave constant amplitude. fig ‘c’ shows amplitude modulated…

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