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How do you express amplitude, frequency and phase modulation? |
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Answer» The equation of a carrier wave may be expressed as ` e = E sin (omegat + phi)` where e is instantaneous voltage at time `t , omega` is angluar frequency and `phi` is the phase w.r.t. some refrence. By varying E, we get amplitude modulation. By varying `omega`, we get frequency modulation and by varying `phi`, we get phase modulation. |
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