List of top Electronics Engineering Questions on communication systems

In binary data transmission, DPSK is preferred over PSK because
Coherent demodulation of FSK signal can be detected using
Consider the signal x(t) shown in the figure. Let h(t) denote the impulse response of the filter matched to x(t), with h(t) being non-zero only in the interval 0 to 4 sec. The slope of h(t) in the interval 3 greater than t greater than 4 sec is
A baseband PCM system with a matched filter at the receiver is implemented with \(\pm 5\) V bipolar with a pulse duration of 72\(\mu\) sec. If the noise PSD is \(1.0 \times 10^{-4} V^2/Hz\), the probability of error in this system is given by
Match List-I (modulation/generation techniques) with List-II (disadvantages/generated signal) and select the correct answer from the given codes:
A 10 kW carrier is sinusoidally modulated by two carriers corresponding to a modulation index of 30% and 40%, respectively. The total radiated power is
The subsystems in an FM receiver are
A. Mixer
B. RF amplifier
C. Limiter
D. IF amplifier
Choose the correct sequence of subsystems in an FM receiver from the options given below:
The image channel rejection in a superheterodyne receiver comes from
Theorem/law and its corresponding specified quality are given in the table below. Match List-I with List-II