Time Left - 15:00 mins
GATE 2025 Communication Systems Evaluation Quiz 7
Attempt now to get your rank among 53 students!
Question 1
An angle modulated signal is given by s(t) = cos(4000πt) cos(5 sin200πt) + sin (4000πt) sin (5 sin200πt). The instantaneous frequency of the angle modulated signal at time t = 5 ms will be _____ kHz.
Question 2
The capacity of gaussian channel of bandwidth 5 kHz with noise PSD 10-7 W/Hz (two sided) when signal energy is 0.2 is ______× 104 bps.
Question 3
In a AM signal, received signal power is 
with a maximum modulating signal of 5kHz.The noise spectral density at the receiver input is 
.If noise power is restricted to the message signal bandwidth only then signal-to-noise ratio at the input to the receiver is_______ (dB)
with a maximum modulating signal of 5kHz.The noise spectral density at the receiver input is .If noise power is restricted to the message signal bandwidth only then signal-to-noise ratio at the input to the receiver is_______ (dB)Question 4
A discrete source transmits message 
with probabilities 0.4, 0.3, 0.3 respectively. The source is connected to the given channel. Calculate 
with probabilities 0.4, 0.3, 0.3 respectively. The source is connected to the given channel. Calculate
Question 5
In a delta modulation system, message signal quantized with a step size of 0.01V, sampled at the rate of 100 samples/sec. Which of the following signal avoids slope overload distortion?
- 53 attempts
- 0 upvotes
- 0 comments
Jan 27ESE & GATE EC
