Digital Communication - Study Mode
[#156] 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 < t < 4 sec is
Correct Answer
(B) -1 sec -1
[#157] Compression in PCM refers to relative compression of
Correct Answer
(A) Higher signal amplitudes
[#158] If S represents the carrier synchronization at the receiver and p represents the bandwidth efficiency, then the correct statement for the coherent binary PSK is
Correct Answer
(A) $$
ho = 0.5,S$$ xa0 is required
[#159] In a digital communication system, transmissions of successive bits through a noisy channel are assumed to be independent events with error probability p. The probability of at most one error in the transmission of an 8-bit sequence is
Correct Answer
(B) (1 - p) 8 + 8p(t - p) 7
[#160] Time division multiplexing (TDM) is possible with
Correct Answer
(B) Digital signals