engineering recuitment GATE ECE 2023-24 Test Series Communication Systems Amplitude Modulation Vestigial Sideband(VSB-SC) Modulation
The frequency response H(ω) of a VSB filter is shown below.
Find the VSB signal XVSB(t) when m(t) = a1 cos ω1t + a2 cos ω2t
1
(a1/8) cos (ωc - ω1)t + (2a1/8) cos (ωc + ω1)t + a2 cos (ωc + ω2)t
2
(a1/8) cos (ωc - ω1)t + (3a1/8) cos (ωc + ω1)t + (a2/2) cos (ωc + ω2)t
3
(a1/8) cos (ωc - ω2)t + (3a1/8) cos (ωc - ω1)t
4
(a1/4) cos (ωc - ω2t) + (2a1/8) cos (ωc + ω1t + (a2/4) cos (ωc + ω2)t