Electronics and Communication Engineering - Communication Systems - Discussion
Discussion Forum : Communication Systems - Section 2 (Q.No. 38)
38.
The equation v(t) = A cos [ωct + φ(t)] where A and ωc are constant and φ(t) is a function of base signal represents
- Phase modulation
- Amplitude modulation
- Angle modulation
- Frequency modulation
Answer: Option
Explanation:
This equation can represent frequency, angle and phase modulation.
Discussion:
2 comments Page 1 of 1.
Saurabh kumar said:
5 years ago
Option A is correct.
Because the only angle will be varies according to base signal with constant amplitude and frequency.
So angle modulation is right.
Because the only angle will be varies according to base signal with constant amplitude and frequency.
So angle modulation is right.
Vimalakar said:
6 years ago
Why did we consider it is frequency modulation?
It is given that the frequency of the carrier (Wc) is constant.
It is given that the frequency of the carrier (Wc) is constant.
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