What is the equation for full-carrier AM?(a) V(t) = (Ec + Em) × (sin⁡ ωc t)(b) V(t) = (Ec + Em) × (sin⁡ ωmt) + (sin⁡ ωc t)(c) V(t) = (Ec × Em) × (sin ⁡ωmt) × (sin⁡ ωc t)(d) V(t) = (Ec + Em sin⁡ ωmt) × (sin ⁡ωc t)This question was posed to me during a job interview.My question is taken from Demodulation of VSB Modulated Wave in chapter VSB Modulation of Analog Communications

What is the equation for full-carrier AM?(a) V(t) = (Ec + Em) × (sin�

1.	What is the equation for full-carrier AM?(a) V(t) = (Ec + Em) × (sin⁡ ωc t)(b) V(t) = (Ec + Em) × (sin⁡ ωmt) + (sin⁡ ωc t)(c) V(t) = (Ec × Em) × (sin ⁡ωmt) × (sin⁡ ωc t)(d) V(t) = (Ec + Em sin⁡ ωmt) × (sin ⁡ωc t)This question was posed to me during a job interview.My question is taken from Demodulation of VSB Modulated Wave in chapter VSB Modulation of Analog Communications
Answer» Correct choice is (d) V(t) = (Ec + Em sin⁡ ωmt) × (sin ⁡ωc t) Easiest explanation: Amplitude MODULATION is the change in the amplitude of carrier wave in PROPORTION to the instantaneous amplitude of the MESSAGE signal. A carrier can be seen as a waveform with frequency higher than the message signal frequency,that is modulated with respect to INPUT signal for the purpose of transmitting information.The equation for full-carrier AM is V(t) = (Ec + Emsin⁡ωmt) × (sin ⁡ωct).

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