1
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
Compression in PCM refers to relative compression of
A
higher signal amplitudes
B
lower signal amplitudes
C
lower signal frequencies
D
higher signal frequencies
2
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
In a PCM system with uniform quantization, increasing the number of bits from 8 to 9 will reduce the quantization noise power by a factor of
A
9
B
8
C
4
D
2
3
GATE ECE 1998
MCQ (Single Correct Answer)
+1
-0.3
For a given data rate, the bandwidth Bp of a BPSK signal and the band width B0 of the OOK signal are related as
A
Bp = B0/4
B
Bp = B0/2
C
Bp = B0
D
Bp = 2B0
4
GATE ECE 1997
MCQ (Single Correct Answer)
+1
-0.3
The line code that has zero dc component for pulse transmission of random binary data is
A
Non - return to zero (NRZ)
B
Return to zero(RZ)
C
Alternate Mark Inversion (AMI)
D
None of the above.
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