Draw the spectrum of amplitude modulated wave and explain its components.

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written 5.5 years ago by

teamques10 ★ 67k

modified 2.6 years ago by

binitamayekar ★ 6.6k

principles of communication network

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written 2.6 years ago by

sagarkolekar ★ 11k

The equation for AM wave is given as:

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Frequency spectrum of AM.

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AM waveform consist of un-modulated carrier (Vc sinwct) lower side band, where f = wc - wm and upper side band where f = wc + wm

Amplitude of each side band is $\frac{mVc}{2}$ where m is modulating index.

If we plot freq on x-axis and respective amplitude on y-axis, we get freq spectrum of AM.

Frequency spectrum describes how power is distributed at various frequencies from frequency spectrum, bandwidth of AM = 2 fm

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