A modulating signal m(t) and modulated signal s(t) is shown in the figure below:

The type of modulation used is

AM-FC

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

DSB-SC

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C PM
$\frac{d m (t)}{d t} = ⎧ ⎪ ⎪ ⎪ ⎪ ⎨ ⎪ ⎪ ⎪ ⎪ ⎩ \begin{matrix} 1; & 0 \leq t \leq t_{1} 0; & t_{1} \leq t \leq t_{2} 1; & t_{2} \leq t \leq t_{3} 0; & t_{3} \leq t \leq \infty \end{matrix}$
$∴$ The wave is PM wave.

Suggest Corrections

Similar questions

The periodic message signal, shown in he figure below, is applied to a modulator to modulate the amplitude of a sinusodial carrier signal. If the amplitude sensitivity of the modulator is 0.25 V^{- 1}, then the transmission efficiency achieved by the resultant modulated signal will be

c (t) = 2 S i n (8 π t)

25 sin 2 π (2000 t)

60 sin 2 π (100, 000 t)

Join BYJU'S Learning Program