Digital Communication - Study Mode

[#51] In a uniform quantizer, the quantization noise is
Correct Answer

(B) proportional to square of the peak-to-peak voltage range of the quantizer

[#52] Obtain the phase states of the carrier when the bit stream 1001101100 is applied to a QPSK modulator
Correct Answer

(D) 180°, 90°, 180°, 270°, 0°

[#53] Which of the following modulation scheme requires minimum power for transmission?
Correct Answer

(A) QPSK

[#54] The line code that has zero dc component for pulse transmission of random binary data is
Correct Answer

(C) alternate mark inversion (AMI)
(G) Alternate mark inversion (AMI)

[#55] In MSK, the difference between the higher and lower frequency is
Correct Answer

(B) Half of the bit rate